DECAPOD CRUSTACEANS OF THE WEST INDIES 113 



Third pereiopod with propodus about four times as long as dactyl. 

 A small species, maximum postorbital carapace length about 9 mm. 



Habitat. — Subterranean fresh water. 



Distribution. — Known only from the type-locality, a cave in 

 Provincia de La Habana, Cuba. 



25. Troglocubanus eigenmanni (Hay) 



Figure 28c 



Palaemonetes eigenmanni Hay, 1903, p. 431, fig. 2 [type-locality: cave near Ashton, 



southwest of Alquizar, Provincia de Pinar del Rio, Cuba]. 

 Troglocubanus eigenmanni. — Holthuis, 1950b, p. 11; 1952, p. 146, pi. 37. 



Diagnosis. — Carapace wdth antennal spine placed behind anterior 

 margin, without branchiostegal or hepatic spines. Rostrum reaching 

 to or slightly beyond end of antennal scale, tapering gradually to 

 terminal point, faintly concave dorsally, slightly convex ventrally; 

 armed ^^dth 6 to 8 dorsal teeth, unarmed ventrally; posterior 3 teeth 

 placed on carapace behind level of orbital margin. Eyes reduced, 

 cornea without pigment. Second pereiopods subequal, slender, fingers 

 about one and one-half times as long as palm, meeting throughout 

 their length, smooth and bare, -with single small tooth in proximal 

 part of opposable margin of dactyl, immovable finger unarmed; palm 

 subcylindrical, about three times as long as wide, smooth and bare; 

 carpus about as long as chela and longer than merus. Third pereiopod 

 with propodus about three and one-half times as long as dactyl. A 

 small species, maximum postorbital carapace length about 8 mm. 



Habitat. — Subterranean fresh water. 



Distribution. — Caves in Pinar del Rio, La Habana, and Matanzas 

 provinces, Cuba. 



26. Troglocubanus gibarensis (Chace) 



Figure 27 



Palaemonetes gibarensis Chace, 1943, p. 28, pi. 7 [type-locality: well supplied by 

 underground stream, Aguada del Montailes, en el Jobal, Barrio de Cupeysillo, 

 Termino de Gibara, Provincia de Oriente, Cuba]. 



Troglocubanus gibarensis. — Holthuis, 1950b, p. 11. 



Diagnosis. — Carapace with small antennal spine arising from 

 anterior margin, without branchiostegal or hepatic spines. Rostrum 

 reaching nearly as far as end of antennular peduncle, with subparallel 

 margins tapering to terminal point distally; armed with 2 or 3 dorsal 

 teeth, unarmed ventrally; posterior tooth placed on carapace behind 

 level of orbital margin. Eyes reduced, cornea mthout pigment. 

 Second pereiopods subequal, slender, fingers not quite twice as long 

 as palm, meeting throughout their length, smooth and bare, without 

 teeth on opposable margins; palm subcylindrical, slightly more than 



