Anal Fin Base Length Research Articles

Integrative Taxonomy of Turcinoemacheilus Bănărescu & Nalbant, 1964 in West Asia with the Description of Three New Species (Teleostei: Nemacheilidae)

Nemacheilid fishes in the genus Turcinoemacheilus are physically small members of the ichthyofauna communities of high-altitude and mountainous freshwater ecosystems. They are all distributed in Western Asia apart from a single species, described in the Himalayas. They are usually very similar in appearance, which complicates their proper identification and/or description. This is why it is important to use multidisciplinary and integrative taxonomical approaches in order to study their true diversity. In this study, three new species of Turcinoemacheilus are described from Iran, raising the total number of valid species to nine. Turcinoemacheilus ansari new species, is distinguished by the anus being situated behind the midpoint of the pelvic-fin and anal-fin origins and the short anal-fin base length. Turcinoemacheilus christofferi new species, differs by the anus being situated behind the midpoint of the pelvic-fin and anal-fin origins, with a complete lateral line reaching to the anterior part of the caudal fin. Turcinoemacheilus moghbeli new species, is distinguished by the anus being situated at or in front of the midpoint of the pelvic-fin and anal-fin origins, with a great pre-pelvic distance and a caudal peduncle length 1.5–2.3 times its length. In Western Asia, all Turcinoemacheilus species are well separated by molecular characters, showing between 3.6 and 14.1% uncorrected p genetic distances in the COI barcode region. This work shows the importance of studying the hidden diversity of under-sampled and understudied groups of organisms to have a clear image of true biodiversity in order to effectively conserve and protect it.

Jenis Kelamin Ikan Nilem (Osteochilus hasseltii) Berdasarkan Truss Morfometrik di Sungai Banjaran, Kabupaten Banyumas

Osteochilus hasseltii belongs to the Cyprinidae family and is a native species in the Banjaran River. Populations of O. hasseltii that are continuously exploited can cause the population to decrease and cause an imbalance between males and females. This study aims to determine differences in morphology and sex of O. hasseltii. The research method uses a survey method and purposive random sampling at two stations, namely Kober Village and Kedung Wuluh Village. A total of 16 individuals of O. hasseltii (8 males and 8 females) were caught using fishing rods. About 24 morphometric truss distances were measured using Image-J software. Normality and homogeneity tests need to be done before conducting the t-test. Data analysis used the t-test with the help of Minitab software. The morphological characters of O. hasseltii seen from the dendogram can be seen that each truss distance measured on male O. hasseltii has a similarity of above 90% so that the morphological differences and the similarities are small. Whereas in female O.hasseltii, the similarity exceeds 75% at each truss distance so that the distinguishing character of female O.hasseltii can be seen from the truss distance which has a small similarity, namely Anal-fin base length (Q) of 76.14% and Upper-jaw length (D) of 86.3%. The results of the t-test showed 8 morphometric truss distances that could be used as a distinguishing feature of male and female O. hasseltii is Snout-supraoccipital distance, Snout length, Snout-pectoral distance, Snout-gill distance, Postorbital head length, Gill-pelvic distance, Dorsal-pelvic distance, and Dorsal fin base length. Therefore, the morphometric truss can be used to differentiate the sex of O. hasseltii.

Pseudolaguvia meghalayaensis, a new diminutive sisorid catfish (Teleostei: Siluriformes) from Northeastern India

Pseudolaguvia meghalayaensis, a new diminutive sisorid catfish, is described from the confluence of Rongkil and Rongdal streams (tributaries of the Brahmaputra River) in Meghalaya, India. It is distinguished from its congeners by a combination of characters: striae in thoracic adhesive apparatus strongly anastomosing and break up into small rounded plaques posteromedially, smooth anterior edge of dorsal spine, 8 branched pectoral-fin rays, supraoccipital spine not reaching nuchal shield, pectoral-fin length 17.120.1% standard length (SL), predorsal length 40.443.8% SL, preanal length 71.173.1% SL, body depth at anus 15.618.1% SL, anal-fin base length 12.212.7% SL, and post adipose fin length12.312.6% SL.

Johnius sasakii, a new species of croaker (Perciformes: Sciaenidae) with a key to Johnius from East Malaysia, Borneo.

A new sciaenid fish, Johnius sasakii sp. nov. from the East Malaysian coastal waters of Sabah and Sarawak, Borneo is described herein. Johnius sasakii sp. nov. can be separated from the close congeners, Johnius heterolepis and Johnius carouna by having less gill rakers on the lower limb of the first gill arch (mode number 9 vs. 10 for J. heterolepis; 11 for J. carouna). It can be distinguished from J. heterolepis with the higher modal number of gill rakers on the upper limb of first gill arch (5 vs. 4), shorter anal-fin base length (9% vs. 10% of SL) and first anal-fin ray length (1012% vs. 1213% of SL) respectively. Furthermore, J. sasakii sp. nov. can be further differentiated from J. carouna by its shorter second anal-fin spine length 710% SL (usually 810%) vs. 1114% SL (usually 1112%) and slightly deeper body depth 2529% SL (usually 2628%) vs. 2328% SL (usually 2426%). Meanwhile, J. sasakii sp. nov. can be easily differentiated from J. macrorhynus by a present of molariform teeth on inner rows of jaws and stumpy gill rakers. Johnius (Johnius) sasakii sp. nov. can be clearly distinguished from species of the subgenus J. (Johnieops) by the lack of enlarged outer row teeth on upper jaw. A Kimura 2-parameter genetic distance comparison of 450 bp sequences of mitochondrial 16S rRNA and 488 bp nuclear gene S7 showed that J. sasakii sp. nov. are highly differentiated from J. heterolepis (16S: 10.4%, S7: 5.8%), J. carouna (16S:19.3%, S7:8.4%); and J. macrorhynus (16S: 16.7%, S7: 8.1%) respectively. The study highlights that the genetic approach from mtDNA and nDNA can contribute to the confirmation of taxonomic status of sympatric species in genus Johnius.

First Specimen-based Records of Redfin Emperor <i>Monotaxis heterodon</i> (Perciformes: Lethrinidae) from Japan, with New Diagnostic Characters Applicable to Identification of Preserved Specimens

Twenty-four specimens (184.6–243.6 mm in standard length) of Monotaxis Anonymous [Bennett], 1830, collected from the Ryukyu Islands, southern Japan, were identified as M. heterodon (Bleeker, 1854) (Perciformes: Lethrinidae). Although a widely distributed Indo-West Pacific species, all previous records from Japanese waters have been based solely on photographs, the present specimens therefore representing the first specimen-based records of M. heterodon from Japan. A detailed comparison between M. heterodon and its only congener, M. grandoculis (Forsskål, 1775), from which it has previously been distinguished primarily by scale rows below the lateral line and fresh or live coloration, revealed new diagnostic characters, most of which are applicable to preserved specimens. In addition to previously recognized characters, the two species can be distinguished by mid-dorsal snout profile in adults (concave vs. straight), snout length (excluding lips) [8.9–11.1 (mean 9.9) % of SL vs. 10.3–12.1 (11.2) % SL], spinous anal-fin base length [4.6–5.9 (5.0) % of SL vs. 3.9–4.9 (4.4) % SL], a distinct black blotch above the pupil (absent vs. present), a dark brown stripe across the post interorbital region in preserved specimens (present vs. absent), and preserved coloration of the pectoral-fin base inner surface (blackish brown vs. light brown).

Vanmaneniamarmorata, a new species of loach (Teleostei: Gastromyzontidae) from the middle Chang-Jiang Basin in Guizhou Province, south China.

BackgroundThe gastromyzontid genus Vanmanenia was established by Hora in 1932, based on the type species Vanmaneniastenosoma. The genus is a loach group adapted to running waters of streams from southern China, northern Vietnam and Laos. Currently, 19 valid species of the genus have been recognised. The northernmost distribution of the genus is the Yangtze River (= Chang-Jiang in Chinese) Basin and five species (V.maculata, V.intermedia, V.stenosoma, V.pseudostriata and V.gymnetrus) have been reported from the Basin.New informationVanmaneniamarmorata, a new hillstream species of loach, is here described from the middle Chang-Jiang Basin in Guizhou Province, south China. It is distinguished from its congeners by having a combination of the following characters: three triangular-shaped rostral lobules; postdorsal saddles wider than interspaces; a more backwards-placed anus (the vent to anal distance 30.5–36.9% of the pelvic to anal distance); a larger gill opening with its upper extremity reaching the level of the middle of the orbit; anal-fin base length 5.6–6.4% of SL; caudal-peduncle length 11.6–12.9% of SL; prepelvic length 51.1–53.4% of SL. Its validity is also affirmed by its distinct cyt b gene sequence divergence with all sampled congeners and its monophyly recovered in a cyt b gene-based phylogenetic analysis.

Using fisher-contributed secondary fins to fill critical shark-fisheries data gaps.

Developing-world shark fisheries are typically not assessed or actively managed for sustainability; one fundamental obstacle is the lack of species and size-composition catch data. We tested and implemented a new and potentially widely applicable approach for collecting these data: mandatory submission of low-value secondary fins (anal fins) from landed sharks by fishers and use of the fins to reconstruct catch species and size. Visual and low-cost genetic identification were used to determine species composition, and linear regression was applied to total length and anal fin base length for catch-size reconstruction. We tested the feasibility of this approach in Belize, first in a local proof-of-concept study and then scaling it up to the national level for the 2017-2018 shark-fishing season (1,786 fins analyzed). Sixteen species occurred in this fishery. The most common were the Caribbean reef (Carcharhinus perezi), blacktip (C. limbatus), sharpnose (Atlantic [Rhizoprionodon terraenovae] and Caribbean [R. porosus] considered as a group), and bonnethead (Sphyrna cf. tiburo). Sharpnose and bonnethead sharks were landed primarily above size at maturity, whereas Caribbean reef and blacktip sharks were primarily landed below size at maturity. Our approach proved effective in obtaining critical data for managing the shark fishery, and we suggest the tools developed as part of this program could be exported to other nations in this region and applied almost immediately if there were means to communicate with fishers and incentivize them to provide anal fins. Outside the tropical Western Atlantic, we recommend further investigation of the feasibility of sampling of secondary fins, including considerations of time, effort, and cost of species identification from these fins, what secondary fin type to use, and the means with which to communicate with fishers and incentivize participation. This program could be a model for collecting urgently needed data for developing-world shark fisheries globally. Article impact statement: Shark fins collected from fishers yield data critical to shark fisheries management in developing nations.

Morphology, biology and parasite fauna of the least cisco (Coregonus sardinella) of the Yenisei River

In the present study, we present an analysis of the morphological and ecological characteristics of the “turukhanskaja” form of the Siberian least cisco of the Yenisei River, including the characters of the size-age, sexual composition of the population, fecundity and growth. The variability of 34 morphological characters was studied. Significant differences were noted between males and females of the least cisco of the Yenisei River for 11 morphometric characters (head length, maximum body depth, caudal peduncle length, antepectoral distance, dorsal fin base length and dorsal fin depth, anal fin base length, pectoral fin length, head width, head (at nape), interorbital width). Significant differences in meristic characters were revealed in comparison of the least cisco from the Yenisei River with populations of Siberian least cisco from other water bodies. It was shown that the Yenisei least cisco is close to the European vendace Coregonus albula Linnaeus, 1758 not only according to cluster hierarchical analysis for some meristic and morphometric features but also in terms of growth and fecundity. In general, the Yenisei least cisco, as well as other populations of least cisco of the Taimyr, is characterized by heterogeneity in the structure of populations. The parasite fauna of Yenisei’s Siberian cisco, captured in the area of Dudinka town, consists of 17 species of parasites from seven systematic groups. It is dominated by Diphyllobothrium ditremum (Creplin, 1825) and Discocotyle sagittata (Leuckart, 1842). The feature of the parasite fauna of least cisco from Yenisei River in comparison with the Ob River (neighbouring water basin) is a low infection with trematodes and a high species diversity of Acanthocephala. The reason for the low infection with trematodes may be differences in the hydrological conditions of the water bodies, which in the Yenisei are unfavourable for the development of intermediate hosts of trematodes. Siberian cisco from the Yenisei River is a carrier of Diphyllobothrium dendriticum (Nitzsh, 1824), a species that can cause human disease.

Quantification of morphological variations among populations of Channa gachua (Hamilton, 1822) from different geographical locations in India

Morphological variations among distinctly distributed populations of Channa gachua (Hamilton, 1822) from three different geographical locations in India, viz., Gangetic Plains (GP), Western Hills and Plateau (WHP) and Eastern Himalaya (EH), were studied based on 200 specimens collected from these regions. The average total length of C. gachua was recorded as 128.5±4.0 mm, 126.3±5.5 mm and 123.1±6.9 mm from GP, WHP and EH, respectively. The analysis revealed variations in sixteen morphometric variables out of twenty measured variables among the GP and other two populations (p<0.05), except eye diameter, head width, anal fin base length and caudal fin length. However, WHP and EH populations did not show any significant difference among the measured characters. Principal component analysis (PCA) indicated that first three PCs explained 90.12% of the total variance. Linear discriminant analysis (LDA) revealed that 108 out of 200 fish samples (54.0%) were correctly classified to the actual sampling locations whereas remaining samples (46.0%) showed overlapping spatial distribution. The corrected classification rate of each population ranged from 24 to 67%. It is concluded that despite morphometric variability in head and jaws, features among GP and other two populations studied, the three must still be considered to be of the same species. The study indicates the existence of two distinct stocks of C. gachua; - one in the Gangetic Plains and another in Western Hills and Plateau and Eastern Himalayan regions.

Morphometric and meristic characteristics of an endemic Lagusia micracanthus Bleeker, 1860 in the rivers of Maros and Wallanae Cenrana Watersheds

Pirik (Lagusia micracanthus Bleeker, 1860) is one of endemic fishes in Sulawesi. Morphometric and meristic information of Pirik population in various habitats are unknown. The present study aimed to determine the morphometric and meristic variation of Pirik in Maros and Wallanae Cenrana watersheds. Sampling collection was carried out monthly from May 2018 to April 2019 in the Maros watershed, namely Pattunuang River (M1), Bantimurung River (M2), Pucak River (M3); and in Wallanae Cenrana watershed particularly in Camba River (W1), Sanrego River (W2), and Ompo River (W3). Morphometric measurements consisted of 31 characters and meristic measurements consisted of 10 characters. Morphometric data was standardized by dividing all morphometric characters by standard length (SL). Analysis of variance (ANOVA) and discriminant analysis (Discriminant Function Analysis) were applied for data analysis. The results showed that the Pirik taken from rivers in the Maros and Wallanae Cenrana watershed are two different population groups. There are 12 distinguishing morphometric features for Pirik of the Maros and Wallanae Cenrana watershed, i.e. TL (total length), SL (standard length), BDdSA (body depth-dorsal fin origin), HL (head length), Jlup (upper-jaw length), PAfL (pre-anal fin length), ABL (Anal fin base length), PelRL (pelvic ray length), AFRL (anal fin ray length), CPL (caudal peduncle length), CLLup (upper caudal lobe length) and CLLmid (mid-caudal length). There is no significant difference of meristic characters of Pirik obtained from the Maros and Wallanae Cenraa watersheds.

Biological properties of European bitterling Rhodeus amarus (Bloch, 1782) in Dinsiz Stream, Turkey

The aim of this article was to some morphometric characteristics of Rhodeus amarus from Dinsiz Stream. A morphological analysis of 21 morphometric characters were done. These characteristics total length (TL); fork length (FL); standard length (SL); predorsal length; dorsal fin base length; dorsal fin length; head length; pretorbital length; eye diameter; postorbital length; interorbital distance; body height; preanal distance; anal fin base length; anal fin length; pectoral fin base length; pectoral fin length; ventral fin base length; ventral fin length; caudal peduncle depth and weight (W). The samples were measured weight to the nearest 0.01 g and total, fork and standard length to the nearest 0.01 mm. The total length (TL) and weight (W min-max) of the fish were 4.2- 7.1 cm and 1.699- 7.444 g, respectively.Keywords: Rhodeus amarus; European bitterling; morphometric properties; Dinsiz Stream Turkey

Sexual dimorphism in the Spotted Stinger Inimicus sinensis (Valenciennes, 1833) and notes on pore structures on the body

Spotted stinger individuals, Inimicus sinensis, collected from Carles, Iloilo, Philippines exhibited previously-unreported sexual dimorphism. Thirty-three morphological measurements, including standard length, and fourteen meristic counts from 99 specimens (47 males and 52 females) were analyzed for sexual dimorphism. Most morphometric characters differed significantly between the sexes, whereas no differences were found in meristic counts. Dorsal and anal-fin and free pectoral-fin ray lengths were greater in male specimens. On the other hand, the head and body region were relatively larger in female specimens. Principal Component Analysis (PCA) extracted two principal components from significantly different parameters, which explained 62.29 % of the cumulative variances. Variations in the two major components resulted from: head width, upper jaw, lower jaw, snout, pre-dorsal, pre-anal-fin, and anal-fin base lengths in PC1 (45.65 %); and orbit diameter and anal-fin base length in PC2 (16.64 %). Additionally, a single anterolateral pore on the body and pores above the lateral-line are described, although no evidence of association with other organs was found.

A new wrasse, Novaculops compressus n. sp. (Perciformes: Labridae),from the western Pacific Ocean.

A new sandy, Novaculops compressus n. sp. is described on the basis of two specimens collected from Yoron Island, Japan and Panay Island, the Philippines. The new species is characterized by IX, 12 dorsal-fin rays, III, 12 anal-fin rays, 12 or 13 pectoral-fin rays, interrupted lateral line, 12 + 5 pored lateral-line scales, 4 scale rows above lateral line, 9 scale rows below lateral line, 16 total gill rakers, snout length 11.1% of standard length (SL), orbit diameter 10.0-10.1% SL, body depth 30.9% SL, anal-fin base length 36.2-37.6% SL, first dorsal-fin spine length 6.4-7.0% SL, pectoral-fin axil black, and first two dorsal-fin membranes black. This species is sympatric with N. sciistius in Kagoshima, Japan.

New species of bumblebee catfish of the genus Batrochoglanis Gill, 1858(Siluriformes: Pseudopimelodidae) from the Aripuanã River basin, Mato Grosso, Brazil.

A new species, Batrochoglanis castaneus, is described from the Aripuanã River basin, Brazil. It differs from congeners, except B. raninus and B. transmontanus, by the dark brown color of the body and a dark brown stripe on the caudal fin. The new species differs from B. raninus by the longer maxillary barbel, longer prepelvic length, greater prepectoral length, smaller anal-fin base length, and smaller head depth. The new species differs from B. transmontanus by the longer caudal-fin dorsal lobe, presence of a hyaline spot or stripe on pelvic, dorsal, and anal fins, longer maxillary barbel, longer pectoral-fin, and dorsal-fin spines, greater eye diameter, smaller head depth, and larger mouth width. A metapterygoid anteriorly bifurcated and the lateral line reaching the adipose fin present in the new species are interpreted as synapomorphies of Batrochoglanis. On the other hand, the distribution of pore and neuromasts of the laterosensory system of the head seems to be very conservative in the family. The new species is known only from the Aripuanã River basin, reinforcing its characteristics as an area of endemism for fishes in the Amazon basin.

Phenotypic Characteristics of the Clupeid Fish Tenualosa ilisha (Family: Clupeidae) collected from Manjhand Vicinity, Pakistan

Thirteen body proportions of the clupeid species, Tenualosailisha were investigated from Manjhand locality on the Indus River, Pakistan. Negative allometricgrowths for all morphometric traits examined were attained. The highest value of ‘b’ coefficient obtained was at its highest level for fork length (0.8834) and its lowest value for eye diameter (0.0398). The correlation coefficient value (R2) was at its lowest value for the relationship of the pectoral fin length-total fish length (0.46), the medium value of 0.77 and 0.80 were obtained for dorsal fin base length and anal fin base length respectively, while the highest value of 0.99 was attained for the relationship of both fork and standard lengths-total length and 0.98 for caudal peduncle length followed by 0.94 for the relationship of postorbital length-total fish length. The present report provides data to fishery biologists on body proportions of T. ilisha from the Indus River valley, Pakistan to support in development of management policies for this fish species.

A new species of cyprinoid fish from the Tana River, Kenya (Actinopterygii: Danionidae)

Sampling of streams in the middle reaches of the Tana River Basin in Meru National Park, Kenya, from 2010 to 2012 for an NSF-funded International Research Experiences for Students (IRES) project, resulted in the capture of a number of specimens of what were first thought to be Neobola fluviatilis. On closer examination the specimens were determined to represent a distinct species, endemic to the Tana River basin, which is herein formally described. The new species is readily diagnosed from N. fluviatilis by higher counts of lateral line, pre-dorsal, and caudal peduncle circumferential scales, higher numbers of pectoral rays, lower numbers of anal fin rays, and a shorter anal-fin base length.

A new pearleye (Teleostei, Aulopiformes) species from the Oligocene of Romania

A new pearleye species of the alepisauroid family Scopelarchidae, Scopelarchoides neamticus sp. nov., is described herein based on two specimens from the Oligocene Lower Dysodilic Shales Formation, cropping out in the Pietricica Mountain, Romanian Eastern Carpathians. The new species described herein exhibits a unique combination of features (including head length about 25% of SL; coracoid remarkably expanded; both preorbital and postorbital lengths larger than orbit diameter; 50 or 51 vertebrae; dorsal fin with nine or ten rays; anal-fin with 28 rays; length of anal fin base about 30% of SL; preanal distance almost 60% of SL; pelvic fin insertion located just under the second dorsal fin ray; pectoral fins only slightly longer than pelvic fins; caudal fin with 19 principal rays plus 14 upper and 13 lower procurrent rays) that justifies its recognition as a new species of the genus Scopelarchoides. Both morphological and meristic features suggest a certain degree of similarity between S. neamticus sp. nov. and the extant species Scopelarchoides signifer. The fossils of the new Oligocene species described herein represent the oldest known skeletal record of Scopelarchidae.

NEW RECORD OF THE KIZILIRMAK KILLIFISH (Aphanius marassantensis Pfleiderer, Geiger & Herder, 2014) FROM SÜREYYABEY DAM LAKE IN YEŞİLIRMAK BASIN

The aim of this was to quantify morphometries characteristic of Aphanius marassantensis from Süreyyabey Dam Lake in 2016. Some morphometric characters of samples were measured. These characteristics were standard length (SL), total length (TL) body weight (W), head length, preorbital distance, eye diameter, postorbital distance, head depth, predorsal distance, prepelvic distance, preanal distance, pectoral fin - pelvic fin distance, pelvic fin - anal fin distance, body depth, dorsal fin (anterior end) – anal fin distance, dorsal fin (posterior end) – anal fin distance, postdorsal distance, postanal distance, caudal peduncle length (dorsal), caudal peduncle length (ventral), caudal peduncle depth, dorsal fin base length, anal fin base length, pectoral fin length, pelvic fin length, dorsal fin length, anal fin length. The SL of 100 individuals ranged from 20 to 38 mm. The TL of individuals were between 28 and 45 mm, and W ranged between 0.37 and 1.91 g.

A new species of Bryconamericus (Characidae: Stevardiinae: Diapomini) from the upper rio Paraná basin, Brazil

ABSTRACT Bryconamericus is the most diverse genus within Stevardiinae, comprising 61 valid species distributed in Cis- and Trans-Andean basins from Panama in Central America to northern Argentina in South America. Three species are known from the upper rio Paraná basin: B. exodon, B. iheringii, and B. turiuba. Herein we describe a new species of Bryconamericus from the upper rio Paraná basin inhabiting tributaries of Ivaí, Piquiri, and Tibagi basins, Paraná State, Brazil. The new species differs from its congeners by the presence of unaligned teeth in the outer tooth row of the premaxilla; a single, vertical, dorsally expanded and rounded humeral spot; 36-39 pored scales in the longitudinal series; body depth 31.6-37.9% SL; anal-fin base length 24.8-30.1% SL; number of branched anal-fin rays 19-22, and bony hooks on pelvic- and anal-fin rays of sexually dimorphic males. The new species is syntopic with other Stervadiinae in the upper rio Paraná basin such as B. iheringii, B. turiuba, Piabarchus stramineus, and Piabina argentea.

MEGANTHIAS KINGYO (KON, YOSHINO AND SAKURAI, 2000) (PERCIFORMES: SERRANIDAE) FROM BITUNG, NORTH SULAWESI, INDONESIA: FIRST RECORD FROM THE SOUTHWESTERN PACIFIC OCEAN

Eight specimens of Meganthias kingyo were collected from Bitung, North Sulawesi, Indonesia between 2008 - 2010. The specimens were caught from about 70-150 m off Lembeh Island. M. kingyo differs from M. natalensis by having the following characteristics: pores lateral line scales (43 vs. 49); pectoral rays (16 vs. ii.14); body depth (47.1 vs. 51.9); head length (31.0 vs. 38.2), body depth (47.1 vs. 52.9), caudal peduncle depth (12.1 vs. 14.2), pectoral fin length (28.0 vs. 34.3), pelvic fin length (33.6 vs. 31.1), anal fin base length (19.4 vs. 22.2), caudal fin length (66.9 vs. 35.3) and longest dorsal fin ray (48.5 vs. 27.4). Previously, this species has been reported from Houzan-sone, off Miyako and Yaeyama Islands in Okinawa, Japan; and herein is recorded from off Lembeh Island, North Sulawesi, Indonesia.