Lissocarcinus Orbicularis Dana
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f ; (i • < /• s • J r • 2nd Ser. ZOOLOGY.] [Reprinted from VOL. XIV. PART 2. i M*k* THE : * * f> TRANSACTIONS * ' * * * •- - * Hr-i,.;, <. ^ . *T - OF THE LINNEAJN SOCIETY OF LONDON. THE PERCY SLADEN TRUST EXPEDITION TO THE INDIAN OCEAN IN 1905. \ UNDEB THE LEADEBSHIP OP MR J. STANLEY GAEDINER VOLUME in. No. XL—MARINE BRACHYURA. BY MARY J. RATHBUN, A mstant Curator, Division of Marine Invertebrat United States National Museum, Washington, U.S.A. LONDON: i PRINTED FOR THE LINNEAN SOCIETY BY JOHN CLAY, M.A. AT THE UNIVERSITY PRESS, CAMBRIDGE. SOLD AT THE SOCIETY'S APARTMENTS, BURLINGTON-HOUSE, PICCADILLY, W., AND BY LONGMANS, GREEN, AND ROW August 1911. • No. XL—MARINE BRACHYURA. BY MARY J. RATHBTJN, Assistant Curator, Division of Marine Invertebrates, United States National Museum, Washington, U.S.A. (Plates 15—20 and Text-Figures 1, 2.) (COMMUNICATED BY PROF. J. STANLEY GARDINER, M.A., F.R.S., F.L.S.) Read 2nd February, 1911. THE collection of crabs is a large one, comprising 245 species and subspecies; of these, 33 species and 3 subspecies are new to science, and for 3 of the species new genera are constructed. The majority of the previously described species are entered in the works by Alcock, Laurie or Borradaile on the Brachyura of India, Ceylon and the Maldives, or form part of the Indo-Pacific fauna. Among the exceptions are three species from the Seychelles which have been recorded hitherto only from the Red Sea, or Persian Gulf, or both, viz.: Atergatopsis signata, Actumnus honnieri and Eumedonus granulosus. Another Red Sea form, Actumnus globulus, was taken by the "Sealark" at the Chagos Archipelago. The results of the expedition show no connection with the West African fauna. The genus Callinectes, it is true, is found for the first time in the Indian Ocean. This genus reaches its greatest abundance both as to species and individuals, in temperate and tropical America, and is fairly abundant on the west coast of Africa. The Indian species, however, is similar to, if not identical with, that lately recorded from the "Albatross" collection in the South Pacific. Most numerous among the "Sealark" crabs are the small oval Xanthids, as Actcea, Carpilodes, Pilumnus} etc. To the same family belongs a new and widely divergent type with a stridulating mechanism, which has been named Gardineria in honour of the leader of the expedition. A different arrangement for producing sound is presented by a new species of Manella; it is the first occurrence of the sort noted among the Palicidse. There is an entire absence of Pinnotheridse and, save for one species of Typhlocarcinops, of those hemispherical forms of the Gonoplacidse which were so abundant in Dr Mortensen's collection in the Gulf of Siam*. * K. D. Vidensk. Selsk. Skr., 7 R, n.—m., Afd. v. 4, 1910, pp. 303—368, text-figs. 1-44, pis. 1-2, 1 map. SECOND SERIES—ZOOLOGY, VOL. XIV. 25 192 PERCY SLADEN TRUST EXPEDITION List of speeies, subspecies and varieties in the collection. Dromidia cranioides de Man. ifi gardineri Borradaile. Cryptodromia canaliculata Stimpson. )) sexlobata Miers. „ pentagonalis Hilgendorf. )) cooperi Borradaile. „ ornata, sp. nov. )) bouvieri Nobili. Homalodromia eoppingeri Miers )) oculea Alcock. Dynomene hispida Desmarest. )) White J? Milne quinquedentatus Rathbun. >> pugnatrix brevimanay subsp. nov )> Heller >) sptnosa, sp. nov. Latreillia pennifera Alcock. Kraussia integra (de Haan). Dorippe dorsipes (Linnseus). „ nitida Stimpson. Calappa calappa (Linnaeus). Carpilius convexus (Forsk&l). Carpilodes tristis Dana. j> hepatica (Linnseus). sayademalhensiS) sp. nov. )> gallus (Herbst). >> • « Milne JJ bicornis Miers. JJ alata, sp. nov. JJ pediger Alcock. Mursia spinimanus Rathbun. JJ Milne Oreophorus reticulatus Adams & White )5 cariosus Alcock. Heteronucia ingens, sp. nov. JJ virgatus Rathbun. Prcebebalia extensiva, gen. et sp. nov. >J monticulosus A. Mill Persephona fugax (Fabricius). JJ pallidas Borradaile. >J brevimana (Alcock). Liomera cinctimana (White), aranosimana A. Milne >> darnleyensis (Haswell). Leucosides jecusculum, sp. nov. latifi j, angulata, sp. nov. White) Pseudophilyra melita de Man. Miln Nursilia dentata Bell. semigranosa (Heller). » Parathranites orientalis Miers. >J anaglypta (Heller). Caphyra rotundifrons (A. Milne Edwards) Zosimus ceneus (Linnaeus). j> hemisphcerica, sp. nov. Lophozozymus dodone (Herbst), Lissocarcinus polybioides Adams & White. JJ Milne )> orbicularis Dana. rugosus Miers. Portunus {Achelous) jietreus (Alcock). J) herdmani Laurie. j >J {Achelous) granulatus (Milne Edwards). Hypocolpus diverticulatus (Strahl). ?? {Achelous) orbitosinus, sp, nov. Xamiho impressus (Lamarck). >> {Achelous) orbicularis (Richters). Leptodius exaratus (Milne Edwards), var. >J {Xiphonectes) longispinosus (Dana). „ sanguineus (Milne Edwards). JJ {Xiphonectes) macrophthalmus Rathbun, )j molokaiensis Rathbun. Callinectes alexandri Rathbun. JJ nudipes (Dana). Gharybdis erythrodactyla (Lamarck). » gracilis (Dana). „ paucidentata (A. Milne I JJ cavipes (Dana). j> hoplites (Wood-Mason). ?? cristatus Borradaile, sp )> Medmus simplex A. Milne Edwards. Thalamita crenata Latreille. JJ ornatus Dana. )> dance Stimpson. Cycloxanthops angustus Rathbun. >? prymna (Herbst). Etisus dentatus (Herbst). JI poissonii (Audouin). >> Icevimanus Randall. 5? admete (Herbst). Etisodes electra (Herbst). J> margaritimana, sp. nov Actcea tomentosa (Milne Edwards) >> quadrilobata Miers. JJ remota Rathbun. M integra Dana. >> tessellata Pocock. >> investigator is Alcock. JJ hirsutissima (Riippell). RATHBUN— MARINE BRAOHYURA rufopunctata Milne Edwar< Actumnus setifer amirantensis, subsp. nov, 55 garretti Rath bun, bonnieri Nobili. )) obesa A. Milne Edwards. globulus Heller. )> affinis (Dana). obesus Dana. 55 speciosa (Dana), simplex, sp. nov. J> ruppellii (Krauss). Imvigatus, sp. nov. 55 acies, sp. nov. Eriphia sebana (Shaw). 55 suffuscula, sp. nov. jj scabricula Dana. 55 variolosa Borradaile. Maldivia gardineri, sp. nov. » hellerii A. Milne Edwards. Trapezia cymodoce (Herbst). » savignyi (Milne Edwards). JJ JJ ferruginea Latreille. 1J boletaria, sp. nov. JJ JJ intermedia Miers. 55 nodulosa White. JJ 9J maculata (MacLeay) 11 flosculata Alcock. )j rufopunctata (Herbst). )J polyacantha (Heller). j> digitalis (Latreille). 55 spinosissima Borradaile. Tetralia glaberrima (Herbst). 55 perspinosa Borradaile. Quadrella coronata Dana. 55 cavipes (Dana). „ maculosa Alcock. » banareias, sp. nov. Polydectus cupulifer (Latreill Daira perlata (Herbst). Domecia Xanthias lamarckii (Milne Edwards) Lybia tesselata (Latreille). )> alcocki Rathfrun. ?J pugil (Alcock). » sp. Gardineria canora, gen. et sp. nov. jj tuberculidens, sp. nov. Eucrate crenata de Haan. )? minutus (Rathbun). Pilumnoplax acanthomerus, sp. nov. Chlorodiella niger (Forsk&l). Catoptrus nitidus A. Milne Edwards. >j Icevissima (Dana). JJ incequalis (Rathbun). sj barbata (Borradaile). Typhlocarcinops piroculata, sp. nov, Phymodius ungulatus (Milne Edwards). Palicus jukesii (White). )) nitidus (Dana). whitei (Miers). )) J? sculptus (A. Milne Edwards) Manella gardineri, sp. nov. laysani Rathbun. Grapsus longitarsis Dana. Chlorodopsis spinipes (Heller). Pachygrapsus plicatus (Milne Edwards). )? tvoodmasoni Alcock. j, minutus A. Milne Edwards. scabricula (Dana). „ longipes Rathbun. >> JJ venusta Rathbun. Plagusia depressa tuberculata Lamarck. JJ melanospinis, sp. nov. Percnon planissimum (Herbst). Pilodius paumotensis Rathbun. J? abbreviatum (Dana). Cymo andreossyi (Audouin). Hapalocarcinus marsupialis Stimpson. „ melanodactylus de Haan. Elamena gracilis Borradaile. „ quadrilobatus Miers. Macropodia formosa, sp. nov. Pseudozius caystrus (Adams & White). Lambrachceus ramifer Alcock. Epixanthus corrosus A. Milne Edwards Achceus lorina (Adams & White). Lydia tenax (Ruppell). J* brevifalcatus, sp. nov. Dacryopilumnus eremita Nobili. ?j inimicus, sp. nov. cadelli Alcock. Pilumnus longicornis Hilgendorf. >> Achceopsis thompsoni (Norman), var. >> andersoni de Man. JJ hirsutus Stimpson. Oncinopus aranea de Haan. orbitospinis, sp. nov. Mpi )> tahitensis de Man. com nov >) Xenocarcinus tuberculatus White. » tceniola Rathbun. turgidulus, sp. nov. Sphenocarcinus cuneus (Wood-Mason). )> Huenia proteus (de Haan). j> trichophoroides de Man. Simocarcinus simplex (Dana). j> alcocki Borradaile. Actumnus setifer (de Haan), var. Mencethius monoceros (Latreille). 194 PERCY SLADEN TRUST EXPEDITION Scyramathia pulchra (Miers), Macrocceloma nummifer Alcock. Halimus inermis, sp. nov. Micippoides angustifrons A. Milne Edwards. „ elongatus Ortmann. Parthenope (Parthenope) longimanus (Linnseus). ,, borradailei Rathbun. ,, (Rhinolambrus) longispinis (Miers). „ uncifer (Caiman). ?? ?? turriger (Adams & White). ,, tenuicornis (Pocock). 55 (Aulacolambrus) hoplonotus (Adams & Naxioides mammillata (Ortmann). White). „ hirta A. Milne Edwards. 55 (Pseudolambrus) calappoides (Adams & „ spinigera Borradaile. White). Hoplophrys oatesii Henderson. 5? (Pseudolambrus) harpax (Adams & White). Tylocarcinus styx (Herbst). 55 55 plana, sp. nov. Chlorinoides longispinus (de Haan). 55 5? erosa (Miers). Schizophrys aspera (Milne Edwards). Daldorfia horrida (Linnseus). Gyclax suborbicularis (Stimpson). 55 investigator is (Alcock). Ophthalmias cervicornis (Herbst). Cryptopodia pan Laurie. Micippa margaritifera Henderson. Eumedonus granulosus MacGilchrist. Cyphocarcinus minutus A. Milne Edwards. ANNOTATED LIST. Dromiidae. 1. Dromidia cranioides de Man. Dromia cranioides Alcock (5)#, p. 138. Gargados Carajos, 24 fms., Sta. B 4t ; 1 ? juv. without chelipeds; G. I.J 7 mm., C.