G. M. Thomson. — Notes on New Zealand Crustacea. 219 



long as palm. Second gnatliopoda larger ; carpus increasing in width, with 

 numerous fascicles of barbed hairs ; propodos longer, lower margin with 

 barbed hairs, upper with several transverse rows of simple hairs ; palm 

 rounded ; dactylos curved. Pereiopoda somewhat increasing in length pos- 

 teriorly, and with short spines. Posterior pleopoda considerably exceeding 

 the preceding pair. Telson double. Length 0-5 inch. 



Hab. Common along the coast; Sumner (near Christchurch), Dun- 

 edin, Stewart Island. 



Fam. COEOPHIID^. 

 Sub-fam. Cokophiides. 



Cephalon and pereion broader than deep. Inferior antennae sub-pedi- 

 form, longer and more powerful than the superior. Coxae small. Posterior 

 pail- of pleopoda simply sub-foliaceous or styliform, not armed with hook- 

 like spines. Telson squamiform, unarmed. 



Genus Cyrtophium, Dana. 



(Brit. Mus. Cat. Amphip. Crust., p. 273.) 



Pereion narrow, elliptical. Pleon inflexed beneath the pereion. Cephalon 

 subquadrate. Eyes situated at the exterior angles, and a little prominent. 

 Antennje pediform, with very short flagella or none ; the inferior pair a 

 little the longer. Gnathopoda sub-chelate ; second pair much the stouter. 

 Posterior pair of j)leopoda minute, simple, partly concealed by the telson ; 

 ante-penultimate and penultimate pairs with the rami unequal, not specially 

 curved upon the outer side. 



1. C. cnstatuni,G. M. Thomson (Ann. and Mag. N.H.,ser.V., vol. IV., p. 331). 



Fig. 8. 



Male. — Eyes prominent. Pereion wider than deep, transversely ribbed, 

 and tuberculate. Last segment of pereion and three anterior segments of 

 pleon elevated dorsaUy into prominent crests. Antennse with long ciha on 

 their inferior margins ; superior pair shorter than inferior ; peduncle reach- 

 ing the extremity of penultimate joint of peduncle of inferior, bearing a 

 one-jointed appendage ; flagellum very indistinctly 7-8-jointed ; inferior 

 pair very strong, about as long as body ; second and third joints with 

 spines on their anterior margins; fourth and fifth joints long; flagellum 

 indistinctly three-jointed, the first joint being equal to the two succeeding. 

 Mandibles with an appendage, the basal joint of which is much the shortest. 

 Maxillipeds with appendages to the basos and ischium ; dactylos spathulate. 

 First gnathopoda with simple cilia on their inferior margins ; carpus pro- 

 duced inferiorly into a rounded lobe ; propodos narrowing anteriorly, palm 

 very oblique, defined by three or four stout spines ; dactylos strong, curved, 

 and acutely toothed on its inner margin. Second gnathopoda large and 

 powerful, furnished with numerous plumose hairs, which are particularly 



