34 STALK-EYED CRUSTACEA 



carapace. Rostrum is nearly as long as the postfrontal 

 part of the carapace ; horns rather short, diverging and 

 curving outwards at the tips. Prjeocular spine small ; 

 postocular spine smaller. No spine on antero-external 

 angle of buccal cavity. Legs have no spine on extremity 

 of fourth joint. 



Range. — Sand Key. 



9. Nibilia. 



Nibilia ... A. Milne Edwards. 

 Herbstia . . Desbonne and Schramm. 



The carapace is subpyriform, very curved, longer than 

 broad. The internal orbital angle is prolonged into a 

 point above. The superior ocular border has a spine ; a 

 straight fissure separates the suborbital border from the 

 basal joint of the external antennae, which is long. The 

 rostrum is composed of two slightly diverging horns. 

 The basal joint of the external antennae is prolonged on 

 the outside into a spine ; the second joint is inserted on 

 the sides of the rostrum ; it is long and cylindrical. The 

 fourth joint of the external maxillipedes is deeply notched 

 on the inside for the insertion of the fifth joint. 



The legs of the first pair the longest. The pincers 

 are large and almost cylindrical ; the fingers do not 

 terminate in a spoon, they are in contact in their whole 

 length when closed. The walking legs of the first pair 

 are longer than the others. The last joint is unarmed 

 below. The abdomen of the male has seven joints. 



Range. — Caribbean Sea. 



Synopsis of the Species. 



A. External antennae as long as rostrum. 

 a. Spine at root of rostral spine small. 



