NO 1311. SOME NEW DEEP SEA CRUSTACEANS— BENEDICT. 265 



There are eight spines on the gastric area, six in a transverse line 

 and two separated by the length of the tirst ciliated line. There is a 

 paired spine in the fork of the cervical suture; no spines occur posterior 

 to these. 



The rostrum is nearly twice the length of the eyes, its upper margin 

 is slightly roughened; the supraocular spines are about one-half the 

 length of the eyes and twice the size of the antero-lateral spines. The 

 merus of the maxillipeds is armed on the inferior border with three 

 slender spines and l)y three small denticles and a spine on the opposite 

 border. The merus of the anterior feet shows upward of twenty-five 

 spines when viewed from above; the carpus is short and is armed with 

 spines and spinules; the palm is short and spinulosc; the fingers are 

 much longer than the palm, and in some specimens have a large hiatus 

 near the base. The abdomen is unarmed. 



The length of the largest specimen is 12 mm. from the front to the 

 end of the telson; length of the chelipeds, 29 mm.; length of dactyl, 

 10 mm.; length of palm, 5.2 mm. 



Locality. — West coast of Mexico, 9 to 78i fathoms; stations 2794, 

 2S09, 2816, 2826, 2829, 2833, 2988, and 3012. 



Type. — Cat. 20536, U.S.N.M., Albatross station 2816, ofi' Galapagos 

 Islands. 



Variations: The proportionate length of the fingers varies. 



MUNIDA NUDA, new species. 



The carapace is broadest anteriorly. The transverse lines are widel}^ 

 separated and are almost devoid of cilia; the only unbroken line runs 

 across the middle of the gastric region; it is conspicuous on account 

 of its straightness and its ending at a spine on the sides of the gastric 

 region. There are eight subequal spines on the gastric I'egion — four 

 in a row near the front and a pair on each side near the hepatic region; 

 the larger one of the pair is higher up on the area and at the end of 

 the straight carinated line. The front is broad and produced in the 

 middle. The supraocular spines are short and stout, not reaching 

 more than one-half the length of the eyes. 



The rostrum is compressed, serrate above, less so on the sidt^s, :ind 

 smooth below. The merus of the lower border of the maxillipeds is 

 armed with one large spine. The chelipeds are strikingly difierent 

 from those of any species examined. They are short; the merus has 

 about ten spines; the largest are on the distal margin; the carpus has 

 two or three large ones on the inner margin and a large number of 

 smaller ones on the upper surface; the outlines of the hand are ellip- 

 tical; spines run along the borders nearly to the ends of the fingers; 

 there are upward of fifty spines on the outer surface; the inner sur- 

 face is free from spines. The second segment of the abdomen has 



