640 



SUBANTARCTIC ISLANDS OF NEW ZEALAND. 



[Crustacea. 



Hah. — Campbell Island (Mr, G. R. Marriner and Messrs. Des Barres and Chambers). 



Type in the Canterbury Museum, New Zealand. 



Specimens of a terrestrial hopper (belonging doubtless to this species) were 

 reported by various members of the expedition to be extremely abundant on Camp- 

 bell Island right up to the top of the highest hills ; owing, however, to its very 

 active habits, and to unfavourable opportunities for collecting, only a compara- 

 tively small number of specimens were actually secured. 



This species evidently closely resembles P. maynei, but the second gnathopod 

 of the male (though of the same type) differs, particularly in not having the palm 

 broad and widely produced on the innner side of the propod. 



nov. 



Parorchestia parva, sp. 



Male. — Body small and compact, side plates not deep, pleon segments with 

 lower margins rounded, posterior angle of third slightly rounded and produced. 



Fig. 9. — Parorchestia parva, sp. nov. 



9a. Antennae of male. 



96. First gnathopod of male. 



9c. Second gnathopod of male. 

 9d. Fifth peraeopod of male. 



Firsx antenna reaching about half-way along the last joint of peduncle of lower 

 antenna, third joint of its peduncle longer than the second, flagellum of four joints, 

 slightly longer than last joint of peduncle. Second antenna short, only one-third 

 the length of the body, last joint of peduncle not much longer than the preceding 

 one, flagellum longer than peduncle and containing about fifteen joints. First 

 gnathopod of usual shape, second gnathopod with basos somewhat broadened, 

 ischium and merus short and subequal ; propod large, broadly oval, widest about the 

 middle, where it is almost as wide as long ; palm transverse or slightly oblique, 

 badly defined, curving gradually into the posterior margin of the propod ; margin 

 of palm straight or slightly convex, and fringed with small setae ; finger moderately 

 curved, its tip fitting into a little recess on the inner side of the end of the palm, 

 inner margin of finger without enlargement. Third peraeopod considerably shorter 

 than the fourth, fifth somewhat longer than fourth, its basos only moderately dilated, 

 the posterior margin being slightly convex and obscurely serrate, lower angle rounded 



