63 HISTORY OF BRITISH CRUSTACEA. 



carapace bent clown. The eyes are short, and lodged in 

 well-formed orbits : the inner antenna? are very short, and 

 lodged in a groove. 



Gen. 23. DBOMIA, Fair. 



Carapace thickly covered with short hairs ; two hind pairs 

 of legs small, raised above the others on the back, and end- 

 ing in a double claw, by means of which they can attach 

 themselves to marine substances, such as sponges. 



Haan tells us that the Bromia Rumphii and other species 

 are not eaten by the Japanese, who regard them as poison- 

 ous."* 



Dromia vulgaris, M. Edw. (Plate Y. fig. 1.)- — Carapace 

 strongly knobbed above ; the sides between the eyes and 

 the middle with four broad teeth, of a deep brown colour, 

 with pinkish claws. 



When young, the abdomen very much resembles that of 

 the Macroura, being thick, and ending in a fan-like expanded 

 fin, and furnished beneath with false swimming-legs. In 

 this state the Dromia seems adapted for swimming; but 

 in the adult state, when the abdomen is smaller and bent 

 under the body, the creature seems to be very sedentary. 



First recorded as British by Dr. Gray, who obtained a spe- 



* Faun. Jap. 107. 



