DECAPOD CRUSTACEANS OF THE WEST INDIES 33 



designated. We anticipate, however, that the ecological tolerances 

 of some of them may exceed the limitations indicated. 



A few of the specific names relegated to a particular category- 

 are preceded by a question mark, indicating that we are not certain 

 that the species in question actually should be so categorized, and 

 a few species, for which no ecological data are available, have been 

 omitted from the list. In some instances, the assignments are made on 

 such meager data that it is suspected that certain names should 

 perhaps be included in more than one category, as indeed Procambarus 

 cubensis cubensis has been (IVa, 2 and 3) . 



This ecological classification of the West Indian species is as follows: 



I. Typically marine species that do not, or rarely, enter fresh water 



A. Climbing on rocks or sea walls above water level 



Grapsus grapsus Plagusia depressa 



B. Occurring under and among rocks and debris on beaches 



Pelrolisthes quadratus Pachygrapsus iransversus 



Geograpsus lividus Cyclograpsus integer 



7 Pachygrapsus corrugatus Sesarma ricordi 



C. Burrowing in marshes or low-lying land (M) ; along muddy banks of 

 estuaries (B) ; or in mangrove swamps (S) 



Eurytium limosum (B, S) Uca cumulanta (M) 



Panopeus herbsiii (B, S) Uca leptodactyla (M) 

 Goniopsis cruenlata (M, B, S) Uca major (M) 



Pachygrapsus gracilis (B, S) Uca rapax (M) 



Aratus pisonii (B, S) Uca speciosa (M) 



1 Metasesarma rubripes (M) Uca ihayeri (M) 



ISesarma miersii (B, S) Uca vocator (M) 



Sesarma curacaoense (B, S) Ucides cordatus (M, B) 

 Uca burger si (M) 

 II. Typically marine species that invade estuarine habitats 



Penaeus aztecus subiilis Callinectes danae 



Penaeus brasiliensis Callinectes exasperatus 



Penaeus duorarum notialis Callinectes marginatus 



Penaeus schmitti Callinectes ornatus 



~K.iphopeneus kroyeri Callinectes sapidus 

 Callinectes bocourti 

 III. Typically freshwater species that invade marine habitats or have, or probably 

 have, marine larvae 



Atya innocous Macrobrachium carcinus 



lAtya lanipes Macrobrachium crenulatum 



Atya scabra Macrobrachium Jaustinum 



Jonga serrei Macrobrachium heterochirus 



Micratya poeyi Afacrobrachium jelskii 



Potimirim americana Palaemon pandaliformis 



Potimirim glabra IGlyptograpsus jarnaicensis 



Potimirim mexicana 7 Sesarma americanum 



ILiphocaris elongata Sesarma rectum 



Macrobrachium acanthurus Sesarma roberti 



