A New Species of Pseudobradya and the Rediscovery and Correction of Quinquelaophonte capillata (Copepoda: Harpacticoida)

Abstract

Pseudobradya lanceta n. sp., from Richmond Beach, Washington, U.S.A., is unique in the shape and ornamentation of the setae on the male and female P5. The previously rare Quinquelaophonte capillata has been rediscovered in South Carolina, U.S.A. Quinquelaophonte capillata is a valid species. My earlier partial redescription published in 1976 was in error regarding A2 exopod setation. The description of setation is corrected and the mouthparts are described for the first time. A new key to the genus is provided. While collecting bulk meiofaunal samples in Washington, U.S.A., Dr. R. J. Feller found some of his samples overwhelmingly dominated by a harpacticoid copepod that proved to be undescribed. This new species was collected by scooping the surface sandy sediment just north of Seattle at Richmond Beach, Washington. Dr. Feller, interested in collecting sufficient copepods to make antibodies, froze several grams of the undescribed harpacticoids and provided me with two vials of preserved specimens. I have not counted the individuals, but certainly there are more than 1,000. Herewith, I describe the new species. Additionally, Coull (1976) provided a partial redescription of the enigmatic copepod Quinquelaophonte capillata (Wilson, 1932) (discussed as Heterolaophonte capillata by Coull, 1976). In that redescription, based on the few Wilson types in the U.S. National Museum, I erred in my description of the second antennal exopodite. In the present paper, I correct that error, and, having rediscovered Q. capillata in South Carolina, describe its previously undescribed mouthparts. The nomenclature and descriptive terminology are adopted after Lang (1948, 1965). All figures have been drawn with the aid of a camera lucida. Abbreviations used throughout the paper are: Al, antennule; A2, antenna; BENP, baseoendopodite; ENP, endopodite; EXP, exopodite; MD, mandible; MX, maxilla; MXL, maxillula; MXP, maxilliped; Pi-P6, leg 1-leg 6. Length measurements do not include the antennules or caudal setae. 'Contribution No. 596 from the Belle W. Baruch Institute for Marine Biology and Coastal Research. Research supported, in part, by the Biological Oceanography Section, National Science Foundation, Grant OCE 83-08114. 2 Publication costs, in part, are being met by a grant from the Spencer-Tolles Fund of the American Microscopical Society. TRANS. AM. MICROSC. SOC., 105(2): 121-129. 1986. ? Copyright, 1986, by the American Microscopical Society, Inc. This content downloaded from 40.77.167.104 on Sun, 24 Jul 2016 05:26:32 UTC All use subject to http://about.jstor.org/terms TRANS. AM. MICROSC. SOC. Ectinosomatidae Sars, 1903, Olofsson, 1917 Genus Pseudobradya Sars, 1904 The following new species have been described since the appearance of Lang's (1965) key: P. usitata Noodt, 1964; P. oligochaeta Tschislenko, 1967; P. kusnezovi Tschislenko, 1967; P. distinctum Wells, 1968; P. brevicaudata Soyer, 1974; P. spinulosa Soyer, 1974; P. peresi Soyer, 1974; P. banyulensis Soyer, 1974; P. truncatiseta Soyer, 1974; P. soyeri Bodiou, 1975; P. psammophila Bodiou, 1975; P. rhea Bodin, 1979. Pseudobradya lanceta n. sp. (Figs. 1-3) Material examined. About 100 individuals, collected by Dr. R. J. Feller, 19 May 1985. Holotype 2, USNM No. 222675. Paratypes 20 29, 5 6$, USNM No. 222676. Type locality. Richmond Beach, Puget Sound, Washington, U.S.A. (47?45'45N, 122?23'15W). MLLW, tide level 0.0, Station F of Feller (1977).