﻿COPKPODA 



15.3 



The first pair of legs has tlie inner margin of tlie third basipodite less produced than in the 

 preceding species; the Se of Re I is rather short, but strong, and llic Sc of Re II, which is fairl\' strong, 

 extends only a little beyond the middle of Re III; the other natatory legs are scarcely different. 



The fiftli pair of legs is in main features like that of Cli. iiotacantlia. but differs in several de- 

 tails. The right endopodite (text-fig. 43 c) has a more regular shape, and has a somewhat different shape 

 terminall}-; the third segment of the right exopodite (te.xt-fig. 43 c) has, inwards, characteristic incisions 

 and processes. The left endopodite has a more regular shape, and is terminally produced into a short 

 tooth (text-fig. 43 d). The second segment of the exopodite is of more equal l)readth throughout, and 

 the third segment is distinctly more slender (text-fig. 43 e); the arrangement of the series of hairs on 

 the posterior surface of Re III shows characteristic features of specific value (fig. 8 a PI. V). 



Text-fig. 43. Chirudina payvispi}ia Farr. 



a. fc?. Abdomen X 22. b. Head X 22. c. Pes V dext. Ri -l Re X c. 50. d. Pes V Ri sin. X 66. c. Pes V sin. Re II III 



X 75- f- yc? (Stage IV). Head X 66. g. .-Vbdonieii X 1)6. b. Pes Y >C c. So. 



Occurrence. The S/vS Thor has gathered this species at two stations viz: 



"/7 1904 St. 183 6i°30 L. N. i7°o8 L. W. Yt. 1800 M. Wire i i<S, 2 yd' (V), 2 y? (V), i y ? (IV), i \S y\\). 

 •% 1904 St. 180 6i°34 L. N. i9°03 L. W. Yt. 1800 AI. Wire i \^ (V). 



This species has only been recorded by Far ran from the west coast of Ireland between 580 

 and 680 fathoms at 54^53 L. N. io°42 L. W. in the uionlJi of November 190.1, and at 54''57 L. N. lO^'si 

 L. W. in the month of February 1905. 



Remarks. The .specimen (young male) described by Farran is .scarceh' different from my 

 specimens. The female is ]5erhai)S identical with L'lid. sprctahilis (;. O. Sars (1900, p. 59), which is, how- 

 ever, much lugger (f? 8 mm.), but in other rc.spcct.s, except by the shorter Se of Re I jics I, is scarcely 

 different in an\- features of importance. If, however, Sars' male (6 nun. long) and female really belong 



rUc IngoH'l-xpeditinn. HI. 4. 



