AMPHIPODA. 



NATATORIA. 



SIPHONCECETES WHITE!. 467 



PODOCER1DES. 



SIPHONCECETES WHTTEI. 



Specific character. Superior antennae having the peduncle but little 

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



Inferior antennae (Jnathopoda 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 inch. 



Cerapus Whitei. GOSSK, .Nat. Rambles, Devonshire, p. 383. 



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



WHITE, Brit. Crust, p. 191. 

 Siphoncecetus Whitei. SPENCE BATE, Cat. Amph. Brit. Mus. p. 270, 



pi. xlv. fig. 10. 

 Siphoncecetus Kroyeranus. 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 antennae 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 antennae, 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 



