DROMIID.^ 



17 



ambulatory leg is much smaller, reaching scarcely to the tip of the carpus 

 of the preceding pair, the dactyl is more sharply curved and lacks the 

 secondary spines, the inferior distal angle of the propodus is provided 

 with a nearly straight spine which may be opposed to the dactyl, thus 

 making the appendage subcheliform. The last pair were apparently en- 

 tirely dorsal in position. 



Abdomen of male seven-jointed, much constricted between the first 

 and second segments and widest at distal end of second, from which it 

 tapers evenly to the seventh, which is obtusely triangular. First segment 

 the shortest, second, third, fourth, and fifth subequal, sixth and seventh 

 increasingly longer. The penultimate joint is said to be long and slender 

 in D. antillensis. The rudimentary uropods are present in a slight notch 

 between the sixth and seventh segments, barely visible from the outside. 



Abdomen of the female seven-jointed, much constricted between the 

 first and second segments, and widest at the third, from which it tapers 

 gradually to the seventh, which is evenly rounded. The median portion 

 is raised, forming a rounded ridge, the whole evenly pubescent. The 

 uropods are present as in the male. The sternal sulci extend from the 

 base of the third pair of legs to the center of the sternum of the chelipeds, 

 where they end in closely approximated but distinct low tubercles. Ab- 

 dominal appendages present on all the segments. 



Color in alcohol, yellowish tan, tips of chelipeds flesh color ; color in 

 life similar. 



Type No. 478, cotype No. 479, Invertebrate Series, Leland Stanford 

 Junior University Zoological Museum. 



