f/'^ j^ '''"'. o "V;^ l '/ The family Nannastacidae (Crustacea : Cumacea) from the deep Atlantic || * | 2 r ?^ J!f 4 | % N N. S. Jones Department of Marine Biology, University of Liverpool, Port Erin, Isle df:Man Contents ^IIISH. MUSEUM Synopsis . . Introduction "''. Station details Systematic descriptions and details of distribution Genus Cumella Key to the Atlantic deep sea species of Cumella 242 Genus Atlantocuma 243 Genus Cumellopsis 245 Genus Platycuma 249 Genus Procampylaspis 253 Key to the species of Procampylaspis 268 Genus Campylaspides 269 Genus Campylaspis 271 Genus Paracampylaspis nov 285 Acknowledgements 287 References . 287 Synopsis One new genus and 41 new species are described in the family Nannastacidae from depths exceeding 200 m throughout the Atlantic. These are Cumella argentinae, C. divisa, C. spinosa, C. spinoculata, C. acuminata, C. aculeata, C. echinata, C. concinna, C. exstans, C. dayae, C. subducta, C. angustata, C. erecta, C. formosa, C. bishopi, C. cristata, C. longisipho, C. spicata, C. polita, C. meridionalis, C. compacta, C. decipiens, Atlantocuma tenuis, Cumellopsis bicostata, C. laevis, Platycuma Candida, Procampylaspis inermis, P. procurrens, P. lutensis, P. acanthomma, P. serratoculus, P. ommidion, P. profunda, P. hirta, Campylaspides canariensis, Campylaspis scuta, C. valida, C. gamoi, C. propinqua, C. tumulifera and Paracampylaspis platycarpus. One new specific synonym and three new combi-nations are included. Keys are provided for identification of the deep water species of Cumella and the known species of Procampylaspis. Further records of distribution are given for another 58 species already described. Introduction The distribution of 39 species of the genus Campylaspis and description of 25 new species among them were recorded in Jones (1974) and two new species of Platycuma and one of Campylaspides described in Jones (1973). Two of the supposed new species of Campylaspis are now considered to be synonymous with previously described species. In the present paper records of distribution additional to those in Jones (1973, 1974) are given for all the species in the family Nannastacidae found in the collections so far examined and a further 41 new species are described. In all, 99 nannastacid species found in depths Bull. Br. Mus. nat Hist. (Zool.) 46(3): 207-289 Issued 29 March 1984 207
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