462 PROCEEDINGS OF THE NATIONAL MUSEUM. 



DECAPODA. 



TRICHODACTYLUS (DILOCARCINUS) DENTATUS (Randall). 



Two specimens of this crab, females, were collected at the mouth 

 of the Rio Bue with a minnow seine July 19, 20; and one male and 

 one female specimen from the Rio Tuy, El Concejo, August 1, 1918. 



MACROBRACHIUM ACANTHURUS (Wlegmann). 



A number of very small shrimps belonging to this species were 

 collected at the mouth of the Rio Bue July 20, 1918. 



MACROBRACHIUM JAMAICENSE (Herbst). 



Six specimens of this shrimp were collected in the Rio Tuy, El 

 Concejo, August 1, 1918. 



