NO. 1311. SOME NEW DEEP SEA CRUSTACEANS— BENEDICT. 209 



gin of the maxillipeds is armed witii but a .single spine. Tlie anterior 

 feet in the male are vxry long and slender; in man}^ specimens there is 

 a prominent hiatus near the base of the fingers of one hand; in one 

 specimen the hiatus exists in both hands. The spines, or rather spin- 

 ules, of the merus are very small; the palm is scabrous, much as in 

 M. irk. There are Init few very small spines on the am])ulatory legs; 

 the only ones at all prominent are those at the distal ends of the merus 

 and carpus. The second segment of the abdomen of many specimens 

 has a wideh" separated pair of spinules; in other specimens with 

 correlated characters the spinules are wanting. 



The females are readily distinguished by the shorter and more spiny 

 ehelipeds. The spinules of the second segment of the abdomen are 

 often wanting, as in the males. 



Male: Length of body, 10 mm,; ehelipeds, 28 mm.; palm, s mm,; 

 fingers, 4.5 mm. 



Locality. — AIhatr<>><s station 2405, Gulf of Mexico; also, at stations 

 2120, Caribbean Sea; 2365,2372,2406, 2407, and 2640, Gulf of Mexico. 

 A lot of three specimens is labeled "Warsaw, New Providence," 



Type.— C^t. No, 20539, U.S.N,M, Station 2405, 



MUNIDA QUADRISPINA, new species. 



The carapace is narrowest near the front margin; the posterior 

 angles are much rounded. 



There are six spines on the gastric area, four in a line in the usual 

 place behind the supraocular spines, and one on the sides near the hepatic 

 region; the terminal spines of the line are very weak and small, but 

 one spine occupies the anterior branchial region. The marginal spines 

 vary from eight to ten in number. 



The rostrum is long and compressed, moderately serrate above and 

 slightly so below. The supraocular spines do not reach quite to the 

 ends of the eyes; the}^ are united to the rostrum for nearly one-half 

 of their length. The eyes are small. The merus of the maxillipeds 

 is armed on the inferior border with four spines; the first and last are 

 long, the others short. The distal ends of the terminal segments of the 

 maxillipeds are rather more dilated than is usual in the genus. 



The anterior feet are well set with spines and spinules. The merus 

 has fourteen spines; the carpus about twenty spines and spinules; and 

 the palm upwards of thirt3\ 



The ambulator}' feet are compressed; the meral and carpal joints are 

 spiny —spines short, l)lunt, inconspicuous. 



Length of a large specimen, 85 mm. ; length of i)alm, 1 5 mm. ; length 

 of fingers, 13 mm. 



Local ity.—Alhati'osx <^ii\i\o\\ 2iH;o; 267 fathoms, 2s7s, 



Ty2)e.—C?it. No, 20537, U,S,N,M, 



Also taken at stations 2861, 2866, 2871, 2878, 2886, 2936, 3053, 3104, 

 8170, 3183, 3445, 3449, 3454," 3457, 3461, 3666, and 3673. One spcci- 



