Chilton. — A New Species of Orchestia. 



357 



Fiftl/ peraeopod (fig. 4, prp^) longer than the fourth, and similarly ex- 

 panded but with carpus fully as wide as long, its posterior margin being 

 greatly produced and very convex. 



Fig. 4. — Orchestia miranda, male, prp^, third peraeopod; prp*, fourth peraeopod; 



prp^, fifth peraeopod. 



First and second uropoda (fig. 5, urp^ and urp^) normal, the peduncle 

 and both rami in each bearing short stout spines. Third uropod (fig. 5, 

 urp^) with peduncle laterally compressed, its depth near the base nearly 

 equal to the length, a few stout setae at distal end of upper margin, ramus 



urp 



Fig. 5. — Orchestia miranda, male. 2irp^, first uropod; urp'^, second uropod; 



urp^, third uropod ; t, telson. 



much shorter than peduncle, with a double row of small stout setae along 

 upper margin. Telson (fig. 5, t) longer than broad, narrowing slightly dis- 

 tally, posterior margin with small triangular notch, lateral and posterior 

 margins supplied with short stout setae. 



