500 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxv. 



Telson with a short spine and a small seta at the end of each lobe and 

 a single dorsal spine on either side. 



Length. — 10 mm. 



Locality. — A single specimen from Station 4342, off South Coro- 

 nado Island, 53-66 fathoms. 



Type.— -Cat. No. 38537, U.S.N.M. 



SCOPELOCHEIRUS CCECUS, new species. 



Blind. Lateral corners of the head produced into a large acute 

 lobe. Antennae short ; the first shorter than the second, the first 

 joint very tumid, as thick as long; first joint of the flagellum a little 

 longer than the five or six others combined; accessory flagellum a 

 little longer than the first joint of the primary one, the elongate first 

 joint followed by two small terminal ones. Second antenna with the 

 flagellum scarcely as long as the peduncle. A sinus between the 



FIG. 10. — SCOPELOCHEIRUS CCECl s. 



epistome and the projecting upper lip. Mandibles with an elongated 

 acute molar tubercle at the level of the palp. First maxillae with 

 the tapering inner plate nearly reaching tip of outer and furnished 

 with twenty to twenty-five plumose setae on inner margin; palp with 

 seven spines on distal margins, the outer one single-pointed and finely 

 setose, the others not setose, bifid, with the inner tooth situated 

 farther down on the side as one passes toward the inner end of the 

 row. Second maxilla' with inner plate nearly as long as outer. 

 Outer plate of maxillipeds not quite reaching end of second joint 

 of pal]). 



First gnathopods with the hand narrow, tapering, shorter than 

 carpus; the small finger pointing toward proximal end of hand, 

 furnished with dense rows of setae on outer margin; a dense tuft of 

 setae on tip of hand behind dactyl. Second gnathopods with the 



