PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXV. 



514 



an elevation near the middle and a sharper one at posterior end. First 

 uropods not nearly reaching the middle of the rami of second uropods, 

 with equal and narrow rami, the inner one armed with about six 

 spines: the outer one smooth. Second uropods with rami rather 

 stout, subequal, about as long as peduncle and armed with numerous 

 short spines in the margins, the outer ramus bearing also a very long 

 slender spine near the tip. Third uropods with narrow subequal 

 rami; outer one with plumose seta? on inner margin; both rami de- 

 void of spines, but a pair of spines on upper distal angle of peduncle. 

 Telson narrow, inner sides of the two lobes produced into an acute 

 point, between which and a smaller second point are about four small 

 setae. 



1 "•• -' :; - A.MPELISCA CALIFOBNICA, FEMALE. THE UPPER FIGURE OVER ab t IS PROM A 

 HALE FROM STATION 4549. <lh... THIRD SEGMENT OF THE ABDOMEN; dbi, FOURTH SEG- 

 MKNT OF THE ABDOMEN; (//(,. FIRST GNATHOPOD 5 /( 2 . SECOND I'ER.EOPOD 5 Ps, THIRD 

 PER.SOPOD; //;,. FIFTH PER.2EOPOD ; /. TELSON J ltr u FIEST I'ROPOD ; Ur 3 , THIRD UROPOD. 



Male. — The first antenna? may not reach beyond the end of the 

 penultimate joint of the second pair, and the latter may be much 

 longer than the body. 



L< ngth.- -15 mm. 



Localities. Station 4342, off South Coronado Island, 53-66 fath- 

 oms; Station II:;:;. off Santa Rosa Island, 243-265 fathoms; Station 

 t436, off San Miguel Island, 264-271 fathoms; Station 4549, Monte- 

 ivy Bay, 56 .'.7 fathoms. 



Type.— Cat. No. 38544, [J.S.N.M. 



This species is allied to .1. brevicomis (Costa), but the fourth joint 



<>l the first perseopods is not produced into a prominent distal lobe; 



tooth at the infero-posterior angle of the third abdominal seg- 



