Chilton. — Additions to the New Zealand Crustacea. 85. 



approach the apex, where they become curved. Second pair of gnathopoda 

 having the propodos (in the male) much larger than that of the first pair. 

 Two anterior pairs of pereiopoda short, having the basa very broad. Pos- 

 terior pair of pleopoda having two rami, one of which is armed with one or 

 more hooked spines. Telson squamiforrn." 

 Podocerus frequens, sp. nov. Plate III., fig. 2. 



Eye moderately large round. Superior antenna as long as the inferior ; 

 first joint of peduncle stout, next two joints longer, equal in length, slender, 

 flagellum considerably longer than the last joint of peduncle, secondary 

 appendage of two or three joints ; the whole of the inferior margin of 

 antenna thickly fringed with long setaa. Inferior antennae slender, last 

 two joints of flagellum equal and longer than the preceding one, flagellum 

 considerably longer than the last joint of the peduncle, inferior border of 

 antenna fringed with long setae ; spines on flagellum even at the end are 

 not much curved and not very strong. First pair of gnathopoda long but 

 not very stout, carpus longer than propodos, hairy; propodos ovate hairy, 

 dactylos with proximal half of inner edge serrate, distal half smooth. 

 Second gnathopod with carpus short, triangular, propodos large, produced 

 inferiorly into a strong tooth against which the dactylos impinges, dactylos 

 strong proximal half of inner edge serrated. First two pairs of pereiopoda 

 subequal, stout. Last three pairs stout, third smaller than the fourth and 

 fifth. Last three pairs of pleopoda short all reaching to the same point ; 

 first pair the longest, rather slender, peduncle longer than the rami and 

 produced between them into a sharp slightly curved spine which is about 

 two-thirds as long as the rami ; rami with short teeth on upper margins 

 curving upwards ; second pair with stout peduncle, rami more slender than 

 peduncle, curved teeth on upper margins of peduncle and rami ; last pair 

 with stout peduncle narrowing at apex, rami small slender, nearly naked. 

 Telson with two curved spines, and anterior to these one or two simple 

 seta3. 



Female. — Differs from above in having the propodos of second gnatho- 

 poda less stout and wanting the strong process, but with two stout setae 

 towards the end of the palm. 



Length about ^ of an inch. 



Hab. Lyttelton Harbour. 



This species appears closely to resemble P. validus, Dana, from Eio 

 Janeiro, but that species has the inferior antennae " very stout." 



The process on the propodos of second gnathopoda of male varies in 

 size in different specimens, and is often longer and more distinct than 

 shown in fig. 2b. 



