Chilton. — A New Species of Orchestia. 



355 



way, but tbe carpus is much more dilated, especially toward the posterior 

 margiu, its greatest width being half as great again as that of the merus 



Length of body of largest specimens, about 20 mm. 



Hab. — Stephen Island, Cook Strait, New Zealand, on rocky shores. 



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; / / 



Fig. 1. — Orchestia miranda, male ; side view. 



This brief diagnosis may be supplemented by the following more de- 

 tailed description of a fully developed male : — 



Body rather compressed. First side plate smaller than the second, by 

 which it is overlapped, fifth as deep as the fourth. Third pleon segment 



Fig. 2. — Orchestia miranda, male, ant^, first antenna; ant^, second antenna; 

 pP, inferior and posterior margins of third pleon segment. 



(fig. 2, pP) with postero-inferior angle quadrate, its posterior margin with 

 small low serrations each with a minute seta. Eyes black, round or slightly 

 oval, the distance between them about equal to their greatest width. 



First antenna (fig. 2, ant^) reaching to the end of penultimate joint of 

 the lower; second and third joints subequal and a little longer than the 



12* 



