CRUSTACEANS 



most valuable companion and correspondent. His Testacea Britannka and Ornithological Dictionary, 

 not to mention his numerous papers published in the Transactions of the Linnean Society of London, 

 leave proofs of his industry and research that will cause his name ever to be remembered and respected 

 by British zoologists.' ^ 



Order SCHIZOPODA 

 Division Euphausiacea 

 Family Euphausiidae 



Nyctiphanes couchii (Bell). Thysanofoda c. Bell 



— norvegica (Michael Sars).' 



Division Mysidacea 



Family Mysidae 



Sub-family Mysinae 



Praunus flexuosus (Milller). Cancer flexuosus, O. F. 

 Muller, Herbst ; Cancer astacus multipes, Mon- 

 tagu ; Praunus flexuosus. Leach, Stebbing ; Mysis 

 spinuhsus. Leach, Sowerby ; Mysis chamaekon, 

 Vaughan Thompson, Bell ; Synmysis flexuosa, 

 Czerniavsky ; Macromysis f., Norman 



— neglectus (Sars). Mysis neglecta, Sars ; Synmysis 



n., Czerniavsky ; Macromysis »., Norman 



— inermis (Rathke). Mysis i., H. Rathke, Sars ; 



Kesslerella i., Czerniavsky ; Macromysis i., Nor- 

 man, Beaumont 

 Schistomysis spiritus (Norman). Mysis s., Norman, 

 Sars ; Synmysis s., Czerniavsky ; Schistomysis s., 

 Norman, Holt and Beaumont 



— ornata (Sars). Mysis o., Sars ; Synmysis o., Czer- 



niavsky ; Schistomysis o., Norman, Beaumont ; 

 Mysis kervillei, Sars 



— arenosa (Sars). Mysis a., Sars ; Austromysis a., 



■ Czerniavsky ; Schistomysis a., Norman, Beaumont 



— parkeri, Norman. S./., Norman, Hodgson, Holt 



— helleri (Sars). Mysis h., Sars ; Austromysis k., 



Czerniavsky ; Schistomysis h., Norman 

 Neomysis vulgaris (Vaughan Thompson). Mysis v., 



Thompson ; Neomysis v., Czerniavsky, Holt, 



Beaumont 

 Acanthomysis longicornis (Milne-Edwards). Mysis /., 



M. E., Sars ; Acanthomysis /., Czerniavsky, 



Norman ; Dasymysis I., Holt and Beaumont 

 Hemimysis lamornae (Couch). Mysis /., Couch ; 



Hemimysis pontica, Czerniavsky ; H. lamornae, 



Norman, Todd 

 Mesopodopsis slabberi (van Beneden). Podopsis s., 



van B. ; Macropsis s., Sars, Norman, Beaumont, 



Holt, Pace ; Mesopodopsis s., Norman (1906) 



Sub-family Heteromysinae 

 Heteromysis formosa (S. L Smith). H. /., Smith, 

 Norman, Garstang, Beaumont. 



Order SCHIZOPODA {continued) 



Division Mysidacea {continued) 



Family Mysidae {continued) 



Sub-family Leptomysinae 



Leptomysis lingvura (Sars). (?) Cynthia Tkminffi, 

 Goodsir, Bell ; Mysis lingvura, Sars ; Leptomysis I., 

 Sars, Norman, Beaumont, Todd ; (at Ilfra- 

 combe) Stebbing 



— gracilis (Sars). Mysis g., Sars ; Leptomysis g., Sars, 



Norman, Holt, Beaumont, Garstang 



— mediterranea, Sars. L. m., Sars, Norman, Beau- 



mont 

 Mysidopsis gibbosa, Sars. M. g., Sars, Norman, Holt, 

 Beaumont, Gamble, Garstang 



— angusta, Sars. M. a., Sars, Norman, Todd, Beau- 



mont 

 Erythrops elegans (Sars). Nematopus e., Sars ; A^. pyg- 

 maeus, Sars ; Erythrops pygmaea, Sars ; E. elegans, 

 Norman, Holt, Beaumont 



Sub-family Siriellinae 



Siriella rostrata (Guerin). Mysis rostratus, Guerin ; 

 M. armata, Milne-Edwards ; Cynthia a., M.E., 

 Siriella a., Sars, Norman, Holt and Beaumont ; 

 Mysis Griffithsiae, Bell ; Cynthilia frontalis, Nor- 

 man (not M.E) 



— clausii, Sars. S. c, Sars, Norman, Beaumont 



— jaltensis, Czerniavsky. S. j., Czerniavsky, Nor- 



man, Garstang, Gamble, Beaumont ; S. cras- 

 sipes, Sars 



— norvegica, Sars. In Ilfracombe harbour (Stebbing) 



Sub-family Acanthocarinae 



Acanthocaris sancta (van Beneden). Mysis s., v. B. ; 

 Gastrosaccus sanctus, Sars, Norman, Holt, Beau- 

 mont ; Pontomysis caucasica, Czerniavsky 



— spinifera (Gogs). Mysis s., Gogs ; Gastrosaccus 



sanctus, Norman ; Acanthocaris Livingstoniana, 

 Sim ; Gastrosaccus spinifer, Stebbing, Norman 



Haplostylus normani (Sars). Gastrosaccus n., Sars, 

 Norman ; Haplostylus »., Kossmann, Garstang, 

 Beaumont 



Anchialina agilis (Sars). Anchialus a., Sars, Nor- 

 man, Holt and Beaumont ; Anchiaftna a., 

 Norman ' 



The Schizopoda owe their name to what is, perhaps, comparatively a primitive feature in the 

 crustacean stock. Their legs are cleft terminally into two branches, one of which is natatory. 

 The tribe Euphausiacea is distinguished by having its graceful branchiae unusually displayed, while 



' Malac. Pod. Brit, (i July, 181 5), text to pi. xli. 



* Hist, of Crustacea (Internat. Sci. Ser.), Ixxiv, 283. 



'The principal references for this list are papers by Canon Norman, ^«». Nat. Hist. Ser. 6 (1892), 

 ix 4.59 • X, 143 ; by Holt and Beaumont, Trans. Royal Dublin Soc. Ser. 2 (1900), vii, pt. 7, 221 ; the Jour-n. 

 Mar Biol. Assoc, (new ser.) (1904), vii, 245 ; and the Crust, of Devon and Comw., by A. M. Norman and 

 T. Scott a work not issued until after this chapter had been sent to the press, so that the use made of it has 

 been less' ample than would have been otherwise desirable. 



263 



