ALLORCHESTES IMBRICATUS. 43 



A MPHIPODA . ORCHESTIID^E. 



SALTATORIA 



ALLORCHESTES IMBRICATUS. 



Specific character. Dorsal median line slightly carinated and imbricated. 

 The inferior antennae more than twice the length of the superior. First pair of 

 gnathopoda very much smaller than the second pair. 



Length 5 7 of an inch. 



Allorchestes imbricatus, SPENCE BATE, Report Brit. Assoc. 1856, p. 57. 

 Ann. Nat. Hist. Feb. 1857. Cat. Amph. Brit. 

 Mus. p. 41, pi. vi. fig. 8. WHITE, Pop. Hist. 

 Brit. Crust. 1858, p. 164. 



THE eyes of this species are small and round. The 

 peduncle of the superior antennae is quite half the length 

 of the antennae, and reaches nearly to the extremity of 

 the peduncle of the inferior. The first pair of legs have 

 the hand more than as long again as broad ; the wrist is 

 but slightly produced inferiorly. The second pair of 

 legs have a very large and powerful hand, with the palm 

 slightly oblique, and the finger fitting into a groove. 

 The hand is broader posteriorly than at the palm. The 

 four anterior pairs of squamiform coxae are large, but 

 scarcely so deep as the respective segments of the body 

 to which they are attached. Those of the fifth pair of 

 legs are about half as deep as the preceding, and are 



