STALK-EYED CRUSTACEA 89 



longer than wide. The orbital border, independent of the 

 large superior and internal spines, has six spines. The 

 three inferior and lateral are larger than the three superior ; 

 sometimes one of these teeth is wanting. The antero- 

 lateral borders have five or six large spines, of which the 

 two first are double, and the sixth, smaller, is situated on 

 a plain higher than that occupied by the others. The 

 regions are not well marked ; their surface is covered with 

 tubercles, small in front, large and pointed behind and on 

 the sides. A row of seven tubercles, of which the middle 

 and the two at the extremes are the largest, exists on 

 the posterior border. The latero-inferior regions have 

 spiniform tubercles. 



The rostrum is horizontal ; the two horns are sharp, 

 flat, scarcely diverging, and almost straight ; their length 

 equals the distance which separates the basal joints of 

 the external antenna;, which has a very long spine at 

 its internal angle ; a shorter spine forms the external 

 angle. There is a tubercle below the insertion of the 

 fiagellum. 



The first pair of legs of the male is long and thin. 

 Two rows of pointed tubercles follow the superior border 

 of the hand ; the fingers are very large, finely toothed, and 

 gaping. The arm and forearm are spinous. The pincers 

 of the female are very frail ; and the tubercles on the 

 border of the hand slightly apparent. The walking legs 

 are long and thin. The fourth and fifth joint have a row 

 of spines above ; the other joints are unarmed. The last 

 joint is long and slightly crooked. 



Range. — Martinique, Florida, Bahia. 



