444 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



"Uropoda considerably more than half as long as the abdominal 

 shield; exopod slightly longer than the sympod and much shorter 

 than the endopod. 



" Second joint of the endopod of second male pleopoda with the 

 distal half considerably broader than near the base, the end very 

 obliquely rounded, the lower surface at the end set with numerous 

 very short hairs. 



'"''Length. Both sexes similar in this respect, measuring about 3.3 

 mm. " HANSEN. a 



STENETRIUM STEBBINGI Richardson. 



Stenetrium stebbingi RICHARDSON, Trans. Conn. Acad. Sciences, XI, 1902, pp. 

 295-296, pi. xxxix, figs. 46-49. 



Localities. Found at low water in corallines at Bailey Bay, Ber- 

 mudas, and at Harrington Sound, Bermudas. 



Depth. I to 12 feet. 



Body long, narrow, depressed. Color light yellow, with markings 

 of black. 



Head narrowed posteriorly, widening anteriorly; the antero-lateral 



b 



d 



FIG. 499. STENETRIUM STEBBINGI. a, HEAD AND FIRST THORACIC SEGMENTS, b, FIRST LEG OF MALE. 

 r, FIRST LEG OF FEMALE, d, TERMINAL SEGMENT OF BODY AND UROPODA. 



angles produced into narrow acute processes, curving slightly inward; 

 the anterior margin is produced in a rostrum,'' which is truncated, on 

 either side of which is a triangular process. Eyes obliquely situated 

 on the anterior portion of the head. 



The first pair of antennae are placed between the two triangular pro- 

 cesses and the rostrum; the first peduncular joint is large, broad, the 



a Proc. Zool. Soc. London, 1905, II, Pt. 2, pp. 324-325. 

 & Hansen calls this the frontal plate. 



