g54 CRUSTACEA. 



Talitrus brevicornis, Edwards. 



Plate 56, fig. 6 a, antennae, enlarged ; b, extremity of second pair ; 

 c, extremity of second pair of legs ; d, ibid, of fourth pair ; e, ibid, of 

 fifth pair ; /, ibid, of sixth pair ; g, stylets of first pair. 



Bay of Islands, New Zealand. 



This species is near the novi-zealandice. The second pair of legs 

 has a similar hand, the finger being on the dorsal margin, and not 

 reaching to the apex ; but the position of this finger is more oblique, 

 and not in the same line with the dorsal margin of the joint. The 

 inferior antennse are shorter; the joints of the flagellum are slightly 

 oblong, and about twelve or fourteen in number ; the three or four 

 spinules are half as long as the joint ; the last joint of the base has 

 but few (three or four sets) instead of many spinules along the margin. 

 The legs have similar spinules but fewer of them ; the penult joint of 

 the fifth pair has but three sets on the lower margin, and they are 

 without other shorter spinules ; their length is not over the diameter 

 of the joint ; on the dorsal margin there are but two or three sets. 

 The antepenult joint has three sets on the lower side, the apical much 

 longer than the diameter of the joint ; and there are two or three sets 

 on the dorsal margin of this joint. The caudal stylets have fewer 

 spinules than in the novi-zealandice; the two branches of the first pair 

 of these stylets have each but three or four spinules or sets of spinules 

 on the upper margin exclusive of the apical (three were observed on 

 the outer and four on the inner branch) . The fourth pair of legs 

 is shorter than the third, and the tarsus differs from the tarsus of all 

 the other pairs in being stouter and gibbous below (fig. 6 d) ; the other 

 tarsi are slender and nearly straight. The spinules of the antennae 

 have a subdivided extremity, as shown in fig. b, and a cluster of setules 

 forms the extremity of the organ. 



Talitrus brevicornis, Edwards, Crust., iii. 15. 



