30 U.S. 



Atyidae 



Palaemonidae 



Hippolytidae 



Astacidae 



Pseudothelphusidae 



Grapsidae 



Totals 6 14 1 



« Oae also on Saint Thomas and the other also on Barbuda. 

 > Also on Saint Croix. 



Two families are represented among those species restricted to 

 Jamaica. Of these, the palaemonid genus Troglocubanus is found 

 elsewhere only on Cuba. The closely related grapsid genera Sesarma 

 and monotypic Metopaulias comprise the remaining Jamaican en- 

 demics. While the former is a subcosmopolitan genus, only on Jamaica 

 in the West Indies is it represented by species (three) that are known 

 to complete their life cycles in freshwater. 



Five families contribute to the list of 14 Cuban endemic decapods. 

 One species of the spelean atyid genus Typhlatya occurs on Cuba and 

 another on Isla Mona (Puerto Rico) and Barbuda. The palaemonid 

 genus Troglocubanus comprises four species on Cuba and a single one 

 on Jamaica. The monotypic hippolytid genus Barbouria is restricted 

 to Cuba. The astacid genus Procambarus, while ranging from Honduras 

 northward into the United States, has three Cuban endemic species, 

 one represented by two subspecies, but is not found elsewhere in the 

 Antilles. The pseudothelphusid genera Epilobocera and Pseudothelphusa 

 are represented by four and one endemic respectively. The endemic 

 Antillean Epilobocera also occurs on Hispaniola and Puerto Rico, while 

 Pseudothelphusa is restricted to Cuba, Puerto Rico, Mexico, Costa 

 Rica, and Colombia. 



Only one endemic decapod, Epilobocera haytensis, is known to occur 

 on Hispaniola, the least known of the four larger Greater Antillean 

 islands. 



Puerto Rico shares with Saint Thomas the Antillean Atya lanipes, 

 and the troglobitic Typhlatya monae occurs only on Mona Island and 

 Barbuda. The remaining endemic is Epilobocera sinuatijrons. 



The Bermudas, Bahamas, and Trinidad are without endemic 

 decapods, and only one species, Guinotia dentata, is restricted to the 

 Lesser Antilles. Other members of the genus occur in South America 

 and along the coastal islands. 



