STALK-EYED CRUSTACEA 463 



Range. — West Indies, Bahamas, Cuba. This species 

 is very common under stones on the shore between high 

 and low water-marks, Barbados. 



2. Alpheus bermudensis. 



AlpJiciis bermudensis . . . Spence Bate. 



Rostrum short, slightly depressed anteriorly, forming 

 a carina that extends posteriorly as far as the orbital 

 lobes, and separated from them by a small groove. 

 Fronto - orbital margin produced to a blunt point that 

 reaches nearly to the extremity of the rostrum. 



Internal antennae having the first joint of the ped- 

 uncle not longer than the extremity of the rostrum ; the 

 second joint about the same length as the first, and the 

 third shorter than the second. The spine on outer side 

 is flat and pointed, reaching nearly as far as the end of 

 the first joint The flagella are equal, the upper branch 

 being about the same length as the peduncle, the lower 

 being about two - thirds that of the whole animal. 

 External antennae having a basal scale that is a little 

 longer than the peduncle of the internal antennae. First 

 pair of legs having the larger hand broad and long, 

 obliquely attached and laterally compressed, the upper 

 margin indented a little behind the finger hinge, from 

 which indentation a longitudinal groove runs back on the 

 inner and outer sides and gradually dies out towards the 

 posterior or carpal extremity. The telson is short, broad, 

 and ovate at its posterior extremity, which is fringed with 

 hairs. 



Range. — Atlantic, Bermuda. 



