THE COPENHAGEN MUSEUM AND OTHER SOUECES. 33 



joint of the palp slender and curved, considerably longer than the third. Gnathopods 

 apparently varying in the two sexes. First and second j)erajopods with the fourth joint 

 much longer than the fifth or sixth ; fifth much wider than the sixth, fringed with long 

 spines at the hinder apex ; the finger small, spine-like, scarcely so large as a knife-like 

 spine on the apex of the sixth joint. Third and fourth peneopods with the second, 

 fourth, and fifth joints greatly widened ; fifth pair much smaller than the others, its 

 second joint much expanded, Avidest distally, produced to the end of the fifth joint ; third 

 joint wider than those folloAving, which are all narrow and small ; the finger straight, 

 acute. First uropods with a long spine at apex of peduncle, rami suhequal, rather 

 longer than peduncle, spinose ; second pair short, rami equal, one sjjinose ; third pair 

 with lanceolate rami. Telson divided into two suboval plates. 



Marsupial plates of the female narrow. 



The generic name is intended to indicate the intermediate character of this genus 

 between such forms as those in the genera Urothoe and Hailstorms of the Pontoporeiidte 

 and Harpinia in the Phoxoeephalidre. By the character of the mandibles it is better 

 placed in the latter family. 



PoNTHARPiNiA PiNGUis (Haswell). (Plate 9B.) 



1880. UrotJwe jnnffuis Haswell, Proc. Linii. Soc. N. S. Wales, vol. iv. p. 3.25, pi. 19. fig. 2. 



1882. „ „ „ Catalogue of the Australian Stalk- and Sessile-eyed Crustacea, p. 240. 



1891. Harpinia t jnngiiis Stebbing, Trans. Zool. Soc. London, vol. xiii. pt. 1, p. 4. 



1893. Urolfioe irrostruta ? Delia Valle, Gammarini, p. 667. 



Head long, tapering from a broad base. First side-plates tending to quadrate, but 

 widened below ; fourth with rounded lower margin, widest just below the shallow exca- 

 vation ; fifth broad, not deep, the binder lobe the deeper ; seventh very small. Third pleon- 

 segment with a very small produced point at the lower hinder angles, above which the 

 hind margin is finely serrulate. The fourth segment ajjpears dorsally to overlap the fifth 

 and sixth. 



First antennce. Fhigellum consisting of 15 joints, accessory flagellum of 10 ; in a 

 female specimen of 9 and 7 respectively. A peculiarity of these joints is that the apical 

 margin being oblique, they overlap one another. This is shown in Haswell's figure of 

 the primary flagellum, though he does not mention it in his text. 



Second antennce. Last joint of peduncle narrow at base, thence a little widening ; 

 flagellum in female with 10 joints, shaped as in the first pair. Haswell's figure shows 

 21 joints. 



Tipper lip wider than deep. Lower lip with very small principal lobes. 



The mouth-organs in general are small, except the palps of the mandibles and 

 maxillipeds. 



Tirst gnathopods. 2 . Second joint reaching much beyond the side-plate ; fifth nearly 

 as long as second and rather wider, fusiform; sixth shorter and rather narrower, widening 

 from a narrow base, then preserving an almost iiniform width to the transverse slightly 

 convex palm, wliich ends in a short tooth, tlie convex front margin of the widened part 



SECOND SEIIIES. — ZOOLOGT, VOL. VII. 5 



