oxYCKriiArrD.-K. JJ4.S 



poda lonp:, oomprcssod ; dactylos small, and not passinj? much 

 beyond the extremity of the carpus, as^ainst Avhich it impinijes. 

 Throe postei'icn' pairs of pcreiopoda havinc; the hasa broadly 

 dilated, the tiftli pair being not more than half the length of the 

 preceding. Sixth segment of the pleon Hat, nearly square. TeLson 

 triangular. Three posterior pairs of pleopoda short, terminating 

 in two little lanceolate rami. 

 " Length about 8 lines. 



" Uah. Indian Ocean." — Edwards. 



2. Oxycephalus oceamis. (Plate LIV. fig. 4.) 



Oxycephalu.s oceauus, O'l/t'riii, Mat/, de Zool. vii. pi. 18. f. 2. 

 Edwards, Hist, dvs Crust, iii. p. 101. 



" Superior antennae oval, and terminated by a little pointed articulus. 

 Inferior antennte small, and composed of five equal joints. Second 

 pair of gnathopoda scarcely longer than the first pair. 



"Ilah. Q]n\ir— Edwards. 



3. Oxycephalus tuberculatus, n.s. (Plate LIV. fig. 5.) 



Cephalon and first segment of the pcreion (wanting), all the seg- 

 ments having dorsally an anterior and a posterior small tubercle. 

 Second pair of gnathopoda having the carpiLS produced anteriorly 

 to quite the length of the propodos, margins smooth ; propodos 

 long-ovate ; dactylos half as long as the propodos. Posterior pair 

 of pereiopoda rudimentary, not so long as the bases of the pre- 

 ceding pail". Antepenultimate paii" of pleojwda having the rami 

 short, serrated ; penultimate not so long as the preceding, having 

 the margins of the rami smooth ; ultimate not reaching to the 

 extremity of the telson, rami ha\'ing the margins serrated. Tel- 

 son acutely triangiilar, margins serrated. 



Length ~ths of an inch. 



Uah. Cape of Good Hope {M. Raynaud). 



The label on the bottle in which the animal has been preserved is 

 not distinct, except that it was taken by " M. Raynaud, Cap« do la 

 Chevrette, Cap Fabre, Janvier 1829 ;" but as the label attached to 

 AnqJilpronoe ciispldata corresponds with this, I assume that the 

 animals were found about the same time, since they were taken at 

 nearly the same place. 



