BY J. S. KmGSLEY. 117 



Alpheus streptochirus Stm. 

 Alpheus streptochirus Stm., Proc. Phil. p. 30 (1860). 

 Cape Verdes Is. (Stm.). 



Alpheus brevipes Stm. 

 Alpheus brevipes Stm. Proceedings Phil. Acad., p. 30 (1860). 

 Hawaiian Is. (Stm.) 



Alpheus barbara Lockington. 

 Alpheus harhara Lckn. 

 Alpheus clamator Kingsley, Bull. U. S. Geol. Survey, iv, p. 



Alpheus euchirus Dana. 

 Alpheus euchirus Dana. 



** A spine on the basal joint of the antennae. 



•Alpheus clamator Lockington. 

 Alpheus clamator Lock., Proc. Cal. Acad, vii, p. 43 (1876) Ann. and 

 Mag. N. H. 

 Sta. Barbara Is. (Lock.), 



Alpheus coUumianus Stm. 

 Alpheus coUumianus Stm., Proc. Phila. Acad., p. 30 (1860). 

 Bonin Is. (Stm.) 



The following species belong in the section with the three-spined 

 front (A) but no details are given of the hands and so their affinities 

 cannot be recognized from the descriptions given. 



Alpheus acutofemoratus Dana. 

 Alpheus acutofemoratus Dana, Proc. Phil. Acad., vi, p. 22 (1852) U. S. 

 Ex. Crust, p. 550, pi. XXXV, f. 2 (1852). 

 Balabac Straits (Dana). 



Alpheus monoceros Heller. 

 Alpheus monoceros Heller ^ Sitzungsberichte, K. Acad. Wiss. Wien, 

 xliv, p. 274 (1862). 

 Red Sea (Heller). 



B. Rostrum spiniform, ocular hoods rounded, not spiniform. 



a. Basal joint of antennal with an external spine. 



* Larger hand constricted above and below. 



§ First joint of carpus of second pair longer than the second joint. 



