NO. 1316. 



SOME CUBAN CRUSTACEANS— HAY. 



433 



They differ very markedly from Palaemonetes antroniui Benedict, 

 hitherto our only known blind Palsemonetes, in the shape of the ro.strum 

 and the character of the chela". The shape of the 63^6 is rather remark- 

 able, even in a group, where through atrophy the eye tends toward the 

 conical form. I know of no other in which it is produced into a 

 blunt point. So far as I have been able to ascertain, this is the first 

 record for this genus in Cuba. In the material from San Isidro there 

 is one specimen which agrees in every way with the types, but the 

 other two differ in such a manner as to lead me to believe that a sec- 

 ond species may be found to inhabit the subterranean waters of Cuba. 

 The two specimens just mentioned have the sixth segment of the 

 al)domen two and one-half times as long as deep, and the anteunal 

 scale is more slender and acute. Unfortunately, the rostrum of one is 

 entirely gone, while of the other only the abdomen remains. 



4. PAL.(EMONETES CUBENSIS, new species. 



Ti/j}e.^.— Cut No. 26350. U.S.N.M. Palacio, Cuba. C. H. Eigen- 

 maim Col., 1902. 



Carapace of the character usual in this genus, rounded above, slightly 

 compressed, and prolonged in front into a large, upcurved, serrated 

 rostrum; at the anterior 

 margin, a short distance 

 below the eve, there is a 

 minute incurved spine, 

 and below it, slightly 

 back of the margin, a 

 second larger spine. 

 The rostrum is longer 

 than the carapace, 

 strongly compressed and 

 serrate above and below; 

 the tip is somewhat up- 

 curved and the base is 

 usually inclined slightly 

 downward toward the 

 middle, but often the 

 basal half is in line with 

 the top of the carapace; 

 the teeth on the upper 



margin of the rostrum number seven or eight, live or six being dis- 

 posed with some regularity from the base to a point anterior to the 

 middle; there is then a toothless space which is followed bj' two small 

 teeth close together at the tip; on the lower surface there are about 

 live teeth, the most posterior one being the largest and placed just in 

 advance of the eye. 



Proc. N. M. vol. xxvi— 02 30 



Fig. 3.— Pal-emonetes cubensis. «, C.\rapace. b, Second an- 

 tenna, c, Eye. rf, First antenna, c, Mandible. /, Third 

 MAXiLi^ED. g, First chelate appendage, h, Teeson and 

 sixth abdominal appendage. 



