Si EEV. T. K. K. STEBBING OX AMPHIPODA EKOM 



li'ing-ed with many seta-like spiues ; the finger closely fits the palm and projects a very 

 little beyond it. 



Second (jnathopods. S . Almost exactly like the first, but the sixth joint rather longer 

 and more slender, -with a smaller palmar tooth, and tlie finger not extending beyond the 

 palm. The marsupial plate is as long as the second joint but much narrower, while the 

 branchial vesicle is considerably longer and much wider ; the side-plate is oblong, m ith 

 the lower margin slightly convex, and like the side-plates in general partly fringed Avitli 

 setoe. 



Gnathopods. 6 . The species now being described is assigned to Haswell's Urothoci 

 pinguis on the supposition that the account gi\en by Haswell refers to the male, and 

 that in that sex the gnathopods are strikingly different from those of the female. 

 Haswell's description says : — " Gnathopoda large ; anterior pair Avitli the carpus three- 

 fourths of tlie length of the propodos ; the propodos ovoid, swollen ; the palm not defined ; 

 the dactylos half as long as the propodos ; posterior pair longer than the anterior ; carpus 

 small, subtrian<];ular ; ]n'opodos ovate, palm defined by a prominent angle ; dactylos rather 

 more than half as long as the propodos." 



Third pera'Ojjods. Second joint expanded, longer than broad, front margin sinuous, 

 serrulate, carrying slender spines and setoe, hind margiu smooth ; fourth joint broader 

 than long, with a long free upper margin armed with slender spines, hind margiu cut 

 into 5 teeth, this and the lower margin spinose; fifth joint narrower than fourth, but 

 still very broad, breadth and length equal, fringed with many spines and setai ; sixth 

 joint not longer, and less than half as broad ; finger quite small. 



i^o^-;-;'/^ j>er^q2;o(/* similar to third, but larger ; second joint broader in proportion to 

 length; fourth very large and setose, with 7 teetli on hind margin, of Avhich the lowest 

 two are formed by deep incisions ; fifth joint rather longer than broad, about twice as 

 broad as the sixth. 



Fiftliperceopods. The large expansion of the second joint has a smooth front margin, the 

 hind one serrate, the lower sei-rulate and fringed with sette ; the fifth joint is apically 

 finely pectinate; the finger is more than half the length of the sixth joint. 



Pleopods. The peduncles are short; the rami with about 21 ratlier broad joints. 



(Jropods. The rami of the first pair are slightly curved, each with a short stout nail ; 

 the rami of the second pair are straight ; those of the third pair (at least in the male) 

 lanceolate, long, plumose. 



Telson with length and breadth equal, the apices rather divergent, each with a spinule 

 in a small emargination, the outer margins (in the male) setose. 



Length of male yj inch, of female -^^ inch. 



" Bondi, New South Wales, cast on the beach during a storm," is the source assigned 

 for the specimen described by Professor Haswell ; the specimen here described was 

 contained in a gathering from Jervis Bay, kindly forwarded to me by the same author. 



