SIPHOXCECETES WHTTET, 



467 



AMPiriPODA, 

 NAT.-ITOIIIA. 



PODOCERIDES. 



SIPHOXCECETES WHTTEI. 



Specific character. Superior antenna? having the peduncle but little 

 longer than the cephalon ; the flagellum short, and apparently exarticulate. 



Inferior antennae Grnathopoda with the carpi and propoda 



continuously long-ovate ; dactylos of the second pair serrated. First two 

 pairs of pereiopoda having the dactyla straight. 



Length 5 4 5 inch. 



Cerapus Whitei. 



Siphoncecetus Whitei. 

 Siphoncecetus Kroyeranus. 



Gosse, Nat. Rambles, Devonshire, p. 383. 



pi. xxii. fig. 12. Mar. Zool. p. 140, f. 253. 



White, Brit. Crust, p. 191. 



Spence Bate, Cat. Amph. Brit. Mus. p. 270, 



pi. xlv. fig. 10. 



Spence Bate, Ann. Nat. Hist. 2 ser. xix. 



p. 149. White, Hist. Brit. Crust, p. 196. 



Our knowledge of this species is limited. The 

 specimen which we examined, and originally described 

 as S. Kroyeranus, has the superior antennas shorter 

 than either the figures of Kroyer or of Gosse ; we 

 have, nevertheless, associated both under one name, 

 and it is not improbable that they may prove to be 

 females of S, typicus. The almost exarticulate flagellum 

 of the upper antenna}, and the more strongly armed 

 second pair of hands, may, possibly, be characteristics 

 of the female sex, but until more specimens are obtained 



h h 2 



