Anomura Research Articles

Erratum to: A micro X-ray computed tomography dataset of South African hermit crabs (Crustacea: Decapoda: Anomura: Paguroidea) containing scans of two rare specimens and three recently described species.

CITATION: Landschoff, J., Du Plessis, A. & Griffiths, C. L. 2018. A micro X-ray computed tomography dataset of South African hermit crabs (Crustacea: Decapoda: Anomura: Paguroidea) containing scans of two rare specimens and three recently described species. GigaScience, 7(4):giy022, doi:10.1093/gigascience/giy022.

Dynamic metabolic pattern of Aegla uruguayana (Schmitt, 1942) (Decapoda: Anomura: Aeglidae): responses to seasonality and ontogeny in a temperate freshwater environment

Fil: Musin, Gabriela Eliana. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Santa Fe. Instituto Nacional de Limnologia. Universidad Nacional del Litoral. Instituto Nacional de Limnologia; Argentina

The first record of paguroids from the Eocene of Istria (Croatia) and further phylogenetic refinement of the Paguroidea (Crustacea, Anomura)

The first record of paguroids from the Eocene of Istria (Croatia) and further phylogenetic refinement of the Paguroidea (Crustacea, Anomura)

Anomuran and Brachyuran Symbiotic Crabs in Coastal Areas between the Southern Ryukyu arc and the Coral Triangle.

Parinya Limviriyakul, Li-Chun Tseng, Jiang-Shiou Hwang, and Tung-Wei Shih (2016) Symbiotic anomuran and brachyuran crabs were identified after extensive surveys of reef zones, especially from sponges, scleractinian corals, crinoids, and sea urchins, in the coastal areas of the southern East China Sea. Twenty-nine species belonging to 17 genera, 9 families, and 2 infraorders were identified (3 were identified to the generic level). More crabs belonged to the infraorder Brachyura (82.8%) than to Anomura (17.2%). Two anomuran symbionts (Allogalathea elegans and Petrolisthes virgatus) and 5 brachyuran symbionts (Tetralia glaberrima, Tetralia rubridactyla, Trapezia cymodoce, Trapezia septata, and Cymo melanodactylus) are common in this area. Two species of Anomura (Lauriea simulata, Petrolisthes virgatus) and 3 of Brachyura (Gonatonotus nasutus, Tetralia aurantistellata and Tetralia nigrolineata) were identified for the first time from waters adjacent to Taiwan. These records represent the northernmost recorded of L. simulata and T. aurantistellata. The occurrence of P. virgatus is the second in the western Pacific Ocean. This study revealed the geospatial distribution of symbiotic crabs, which connects the region from the southern Ryukyu arc to the Coral Triangle, and provides the supporting taxonomic account of symbiotic anomuran and brachyuran crab fauna inhabiting the reef zone in northern Taiwan.

SEASONAL CHANGES IN BIOCHEMICAL COMPOSITION OF THE SAND CRAB EMERITA HOLTHUISI SANKOLLI (DECAPODA ANOMURA)

SUMMARY 1. The changes in the biochemical constituents of the soft body tissues and hepatopancreas of Emerita holthuisi Sankolli (Decapoda Anomura) were studied at monthly intervals for 1 year to determine their variability in the course of the reproductive cycle. 2. The water content remained at a high level during the monsoon season i.e. from July to September. It was at moderate level from October to January followed by a slight decrease during the period from February to June. 3. Protein, glycogen and fat of hepatopancreas were correlated with reproductive activity. During ripening of the gonads protein, glycogen and fat of the soft body parts and the hepatopancreas were increased. During the intensive spawning period all values fell considerably reaching minimum values at the end of the spawning period.

FEEDING HABITS OF THE SUEZ CANAL MIGRANT SQUIRRELFISH, SARGOCENTRON RUBRUM, IN THE MEDITERRANEAN SEA

ABSTRACT The squirrelfish, Sargocentron rubrum (Forsskal, 1775), is a successful Suez Canal immigrant common along the Mediterranean coast of Israel and caught occasionally in small quantities in commercial catch by trammel net and by hook-and-line. Monthly samples of stomach contents of this fish caught off 'Akko (Acre), Israel, from October 1979 to October 1980 were examined. Decapoda constituted the bulk of the diet, the remainder being Polychaeta, Isopoda, Mollusca and fishes. S. rubrum feeds intensively in summer and lightly in winter. Seasonal predominance of each taxon in the diet was measured by an alimentary coefficient calculated as a product of the frequency and weight percentages. Brachyura constituted 77.8% in summer, 94.7% in fall and winter; Anomura constituted 82.4% in spring. Pisidia longimana, Portunus hastatus, Xantho spp. and Pilumnus hirtellus were the most commonly-found prey. No preference for feeding on Suez Canal invertebrate immigrants of Red Sea origin was observed. It is conclu...

Effects of copper on the physiological responses of the commercial crab Lithodes santolla (Decapoda: Anomura) larvae

Fil: Amin, Oscar Antonio. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Austral de Investigaciones Cientificas; Argentina

New records of Porcellanidae (Decapoda, Anomura) from Taiwan

Two porcellanid crabs, Petrolisthes decacanthus Ortmann, 1897 and Neopetrolisthes spinatus Osawa & Fujita, 2001, are recorded from Taiwan for the first time. P. decacanthus has a wide but scattered distribution in the Indo-West Pacific, mainly on oceanic islands. Morphological variations of this species are noted. Comparison of specimens of N. spinatus and N. alobatus (Laurie, 1926) has shown that these two species are morphologically close to each other, but distinguished by the armature of the supra-ocular margin. Deux crabes porcellanides, Petrolisthes decacanthus Ortmann, 1897 et Neopetrolisthes spinatus Osawa & Fujita, 2001, ont ete signales a Taiwan pour la premiere fois. P. decacanthus presente une distribution large mais dispersee dans les oceans Pacifique-ouest et Indien, essentiellement dans les iles oceaniques. Des variations morphologiques de cette espece sont notees. La comparaison avec des specimens de N. spinatus and N. alobatus (Laurie, 1926) a montre que ces deux especes sont morphologiquement proches mais differentiables par l'armature du bord supra-oculaire.

Biology of Anomura II

Biology of Anomura II

Hermit crabs of the genus Calcinus Dana, 1851 from Japan and adjacent waters (Decapoda, Anomura, Diogenidae): a colour variant of C. Hazletti Haig & McLaughlin

[Calcinus hazletti Haig & McLaughlin, originally described from Hawaii, was recently collected from Japanese waters. One individual from Kushimoto, Kii Peninsula, showed an unusual colour variation. Calcinus hazletti Haig & McLaughlin, decrite de Hawaii, a ete recemment recoltee dans les eaux japonaises. Un individu de Kushimoto, peninsule de Kii, a montre une variation de couleur inhabituelle. , Calcinus hazletti Haig & McLaughlin, originally described from Hawaii, was recently collected from Japanese waters. One individual from Kushimoto, Kii Peninsula, showed an unusual colour variation. Calcinus hazletti Haig & McLaughlin, decrite de Hawaii, a ete recemment recoltee dans les eaux japonaises. Un individu de Kushimoto, peninsule de Kii, a montre une variation de couleur inhabituelle. ]

Dardanus Jacquesi, A new species of hermit crab from the Indo-West Pacific, with the redescription of a little known species, Dardanus Dearmatus (Henderson, 1888) (Decapoda, Anomura, Diogenidae)

[A new species of hermit crab, Dardanus jacquesi, is described on the basis of specimens from Okinawa, Japan, and the Seychelles, Indian Ocean. A presumably very closely allied species, Dardanus dearmatus (Henderson, 1888), is redescribed in detail on the basis of the holotype from Papua New Guinea and specimens from the Maldives. Une nouvelle espece, Dardanus jacquesi, provenant d'Okinawa, Japon, et des iles Seychelles, Ocean Indien, est decrite et illustree. La nouvelle espece semble proche de D. dearmatus (Henderson, 1888). Dardanus dearmatus est redecrit et illustre d'apres les specimens de Papouasie, NouvelleGuinee (holotype) et des iles Maldives., A new species of hermit crab, Dardanus jacquesi, is described on the basis of specimens from Okinawa, Japan, and the Seychelles, Indian Ocean. A presumably very closely allied species, Dardanus dearmatus (Henderson, 1888), is redescribed in detail on the basis of the holotype from Papua New Guinea and specimens from the Maldives. Une nouvelle espece, Dardanus jacquesi, provenant d'Okinawa, Japon, et des iles Seychelles, Ocean Indien, est decrite et illustree. La nouvelle espece semble proche de D. dearmatus (Henderson, 1888). Dardanus dearmatus est redecrit et illustre d'apres les specimens de Papouasie, NouvelleGuinee (holotype) et des iles Maldives.]

The genus Diogenes (Decapoda, Anomura, Diogenidae) from Irian Jaya, Indonesia, with description of a new species

[A new species of hermit crab, Diogenes foresti, collected on the southwest coast of Irian Jaya is described. This new species is easily distinguished from D. avarus in possessing dactyls of the second and third pereiopods that are weakly curved, dorsal margin of carpi with distal spine, and ocular peduncles inflated at their extremities. Other species, Diogenes avarus Heller, 1865; D. dubius (Herbst, 1804); D. dorotheae Morgan & Forest, 1991; D. leptocerus Forest, 1956; D. stenops Morgan & Forest, 1991, and D. tumidus Rahayu & Forest, 1995 are also recorded. Une nouvelle espece de pagure, Diogenes foresti, recolte sur la cote sud-occidentale de l'Irian Jaya est decrite ici. Cette nouvelle espece se distingue aisement de D. avarus par la presence sur les deuxieme et troisieme pereiopodes de dactyles faiblement recourbes, par le bord dorsal des carpes presentant une epine distale et les pedoncules oculaires dilates a leur extremites. D'autres especes, Diogenes avarus Heller, 1865; D. dubius (Herbst, 1804); D. dorotheae Morgan & Forest, 1991; D. leptocerus Forest, 1956; D. stenops Morgan & Forest, 1991 et D. tumidus Rahayu & Forest, 1995 sont egalement signalees et commentees., A new species of hermit crab, Diogenes foresti, collected on the southwest coast of Irian Jaya is described. This new species is easily distinguished from D. avarus in possessing dactyls of the second and third pereiopods that are weakly curved, dorsal margin of carpi with distal spine, and ocular peduncles inflated at their extremities. Other species, Diogenes avarus Heller, 1865; D. dubius (Herbst, 1804); D. dorotheae Morgan & Forest, 1991; D. leptocerus Forest, 1956; D. stenops Morgan & Forest, 1991, and D. tumidus Rahayu & Forest, 1995 are also recorded. Une nouvelle espece de pagure, Diogenes foresti, recolte sur la cote sud-occidentale de l'Irian Jaya est decrite ici. Cette nouvelle espece se distingue aisement de D. avarus par la presence sur les deuxieme et troisieme pereiopodes de dactyles faiblement recourbes, par le bord dorsal des carpes presentant une epine distale et les pedoncules oculaires dilates a leur extremites. D'autres especes, Diogenes avarus Heller, 1865; D. dubius (Herbst, 1804); D. dorotheae Morgan & Forest, 1991; D. leptocerus Forest, 1956; D. stenops Morgan & Forest, 1991 et D. tumidus Rahayu & Forest, 1995 sont egalement signalees et commentees.]

In Pursuit of J. F. W. Herbst's Species of Diogenes (Anomura: Paguridea: Diogenidae)

In Pursuit of J. F. W. Herbst's Species of Diogenes (Anomura: Paguridea: Diogenidae)

Natural history of Emerita analoga (Stimpson) (Anomura, Hippidae) in a sandy beach of northern Chile

Se realizaron muestreos de sedimentos en la playa de Hornitos, norte de Chile (ca. 22°26´S) durante Agosto y Noviembre de 1996 y Marzo, Julio y Noviembre de 1997, con el objetivo de estudiar la biologia reproductiva y poblacional de Emerita analoga (Stimpson) (Decapoda, Anomura) en una region de la costa Chilena, caracterizada por la presencia de surgencias persistentes. Las mayores abundancias de E. analoga ocurrieron durante Marzo y Diciembre de 1997. Durante Noviembre de 1996, Marzo y Diciembre de 1997, las abundancias mas altas ocurrieron bajo la linea de efluente, mientras que durante Julio de 1996 y Agosto de 1997, la mayoria de las estadios E. analoga ocurrieron con mayor abundancia sobre esa linea. Se recolectaron hembras ovigeras durante todo el periodo de estudio. Los juveniles tambien estuvieron presentes durante todo el muestreo, registrandose las mayores abundancias durante Marzo de 1997. La talla de las hembras ovigeras vario entre 12,6 y 26,4 mm. La fecundidad aumento significativamente con la talla de las hembras en cada periodo estacional analizado. El analisis del patron de reclutamiento de machos y hembras sugiere la existencia de dos pulsos en el reclutamiento de E. analoga en Hornitos: uno entre Octubre y Diciembre, y otro entre Febrero y Marzo. Los analisis del crecimiento muestran que las hembras tienen tasas de crecimiento y tamanos corporales maximos mayores que los machos. Comparaciones con estudios similares realizados en la costa del centro sur de Chile (ca. 39° S), muestran similares tasas de crecimiento y tallas corporales maximas de E. analoga mayores en el sur que en la poblacion de Hornitos. Por lo tanto, se concluye que la cercania a areas de surgencias persistentes parece no afectar la historia de vida de E. analoga en el norte de Chile

Redescription of Pagurus lanuginosus with the Establishment of a Neotype, and Description of a New Closely Related Species (Decapoda: Anomura: Paguridae)

Redescription of Pagurus lanuginosus with the Establishment of a Neotype, and Description of a New Closely Related Species (Decapoda: Anomura: Paguridae)

AEGLA BAHAMONDEI, NEW SPECIES (CRUSTACEA: DECAPODA: ANOMURA) FROM THE COASTAL MOUNTAIN RANGE OF NAHUELBUTA, CHILE

Aegla bahamondei, new species (Crustacea, Anomura, Aeglidae) is described from the Tucapel River on the western slope of Cordillera de Nahuelbuta, Chile. Morphologically it closely resembles A. rostrata Jara from preandean lakes of the Valdivia and Tolten river basins. A. bahamondei differs from A. rostrata in its acute median tubercle on the fourth thoracic sternum, less prominent overall spinulation, and nonstilettolike rostrum. The morphological similarity between A. bahamondei and A. rostrata is interpreted as indication of recent common ancestry. It is hypothesized that A. bahamondei represents the plesiomorphic and A. rostrata the apomorphic species. The Chilean coastal mountain range of Nahuelbuta, stretching between 37? and 39?, is a region of faunistic individuality compared with the remaining southern Chilean territory. This view is supported by the existence of at least two genera of Plecoptera (Insecta) and one species of Anura restricted to this region (Illies, 1969; Formas, 1979); these authors presume that the Cordillera de Nahuelbuta served as a refuge for the preglacial Tertiary fauna. Arenas (1976) has suggested that in postglacial times some freshwater fishes and amphibians could have extended their geographic range from this coastal refuge to the Andes. Four species of crayfishes (Parastacidae) and three species of Aeglidae (Bahamonde and L6pez, 1963; Jara, 1977) are known from freshwaters in the Chilean region between Concepci6n and Valdivia provinces. However, none of the Aegla species have been recorded from the Cordillera de Nahuelbuta itself or from its immediate surroundings. This paper describes as a new species a form of Aegla Leach found in a small river on the western slope of the Cordillera de Nahuelbuta.

Variations in Appendage Setal Counts in Zoea Larvae of Four Porcellanid Crabs (Decapoda Anomura) From Oregon 1 )

Les variations en nombre des soies presentes sur les deux paires de maxilles et sur les maxillipedes des larves zoe 1 et zoe II ont ete analysees chez les anomoures porcellanides Petrolisthes eriomerus, Petrolisthes cinctipes, Pachycheles pubescens et Parhycheles rudis, de la cote de l'Oregon. L'asymetrie du nombre de soies sur les maxilles droites et gauches etait frequente mais les differences entre la droite et la gauche n'etaient statistiquement significatives pour aucun stade zoe, quelle que fut l'espece. Les echelles de variations du nombre de soies se chevauchent pour chaque paire d'especes d'un meme genre, pour les deux stades zoe, de meme que les echelles de variations des deux genres. Les formules setales ne caracterisent pas les especes, et ne separent pas clairement les genres. Chez les deux especes de Petrolisthes, les differences trouvees entre les frequences des nombres de soies n'etaient pas statistiquement significatives pour la plupart des lobes des maxilles et des groupes de soies des maxillipedes. Les differences dans les frequences des nombres de soies entre les genres etaient significatives dans la plupart des cas. Il est necessaire d'effectueur les denombrements sur un nombre suffisant d'echantillons pour fournir des descriptions precises des larves de crustaces, et l'importance de l'echantillonnage devrait etre indiquee, ainsi que la variation des nombres de soies. Des donnees suffisantes sur les nombres de soies et leurs variations peuvent etre d'utilite dans les etudes employant des methodes de taxonomie numerique.

Remarks on the classification of fossil anomuran coprolites

The fossil anomuran coprolite form-genera are defined by the type of the cross section of the longitudinal canals which pierce the fecal pellet. Arrangement and number of longitudinal canals within the 2 bilaterally symmetric groups of canals are the principal elements for the definition of form-species of anomuran coprolites. To-date the 4 thalassinid form-generaFavreina Bronnimann, 1955,Palaxius Bronnimann & Norton, 1960,Helicerina Bronnimann & Masse, 1968, andParafavreina Bronnimann, Caron & Zaninetti, 1972, and the single galatheid form-genusThoronetia Bronnimann, Caron & Zaninetti, 1972, have been established.

The Distribution of the Sand Crabs, Hippa Strigillata (Stimpson) and Hippa Pacifica (Dana) in the Eastern Pacific Ocean (Decapoda, Anomura)

Revue des informations anterieures deja publiees et donnees nouvelles sur la distribution de Hippa strigillata (Stimpson) et de H. pacifica (Dana) dans l'est de l'Ocean Pacifique.

The Larval Development of the Sand Crab Hippa Cubensis (De Saussure) in the Laboratory (Decapoda, Anomura)

Cette etude est une description du developpement larvaire du crabe, Hippa cuben.rit (Saussure), bas6e sur des cultures faites dans le laboratoire. Il y a soit 5 soit 6 stades zo6 distincts et la m6galope. Les larves de Hippa cuben.rir different de celles de Emerita par leur taille, la quantite d'epines du telson et le nombre de soies plumeuses sur le scaphognatite. Les differences anatomiques pour les antennes et les antennules sont en relation avec les differences de regime alimentaire. La duree du d6veloppement larvaire parait d6pendre de la temperature tout en restant egale pour les deux especes.