N(U:ni, iSOME NEW DEEP SEA CRUSTACEANS— BENEDICT. 251 



Genus MUNIDA l.eaeh. 



KEY TO THE SPECIES OF THE GENUS MUNIDA EXAMINED. 



1. Alidomeii unarmed. 



a. Rostruui with several lateral spines near the ai>ex refuhjens, p. 'M2 



a. Rostrum without spines at apex. 



h. Palm much shorter than the fingers inexicutia, p. 264 



I). Palm ranging from a trifle shorter to much longer than the fingers. 

 e. Palm and fingers subcylindrical. 



r/. No spines posterior to the middle transverse depression, .simplex, j). 272 

 d. With spines posterior to the middle of the transverse depression. 

 e. Supraocular spines not reaching the middle of the eyes .debilw, p. 256 



('. Supraocular spines reaching the middle of the eye irrasa, p. 810 



c. Palm and fingers fiattened. 



d. With several spines posterior to the middle transverse depres- 

 sion - sculpta, p. 270 



d. No spines posterior to the middle depression quadrispma, p. 269 



2. Second segment of the abdomen armed. 



a. Chelipeds more than four times the length of the carapace, including the 

 rostrum; palms sulx'vlindrical, armed with but few spinules. 

 b. Supraocular spines, reaching nearly to the distal margin of the cornea. 



irh, p. 310 



h. Supraocular spines, short, not reaching the cornea pimlUi, p. 268 



a. Chelipeds less than four times the length of the carapace. 

 h. Gastric spines, with two or three small intermediate spines. 

 c. Cornea but little larger than the peduncle. 



d. Merus of maxillipeds armed with one spine perlata, p. 266 



d. Merus armed with two spines 'microphthidma, p. 311 



c. Cornea wide, spreading; much larger than the peduncle. 

 d. No spines on the margins of the fingers. 



e. Fingers three times length of palm curvamnna, p. 307 



e. Fingers not three times the length of paliD. 

 /. Rostrum cutlass-shaped, elevated to an angle of 45 degrees above 



line of carapace curvatura, p. 253 



/. Rostrum sigmoid, horizontal andamnnka, p. 306 



d. With spines on the margins of the fingers. 



e. Supraocular spines, reaching beyond the eyes prupiuqwt, \). 312 



e. Supraocular spines not reaching beyond the eyes. 

 /. Fingers straight. 



g. Spines in the gastric row, six. 



h. One spine in the triangular area sancti-pauli, p. 312 



h. No spines in the triangular area decora, p. 257 



(J. Spines in the gastric row, twelve honshuensis, p. 261 



/. Fingers curved curvipcs, p. 254 



h. No intermediate spines. 



c. Fingers much longer than the i)alm .forceps, p. 307 



c. Fingers shorter than the palm. 



d. Hand Ijent downward at the base of the fingers, all surfaces spinu- 



lose (DKjidata, ]>. 252 



d. Hand not bent, broad, spinulose on outer surface and margins. 



nuda, p. 265 

 •3. Second and third segments of the abdomen armed. 

 a. A pair of spines between the large gastric pair. 



b. Without spines behind.the cervical suture. (See 2 above). .-f?ecorfl, ]». 257 



b. With spines behind the cervical suture obesa, p. ;!1 1 



Proc. N. M. vol. xxvi— U2 IS 



