BY J. S. KINGSLEY. 125 



Alpheus truncatus Kingsley. 



Betceus truncatus Dana. IT. S. Ex. Ex. Crust., p. 559, pi. xxxv, f. 5 



(1852). 



Alpheus truncatus Kingsley. Bulletin Geol. Surv., iv, p. 190 (1877). 

 Terra delFuegia (Dana). 



Alpheus scabrodigitus Kingsley. 



Be tceus sea brodigitus Dana, 1. c., p. 560, pi. xxv, f. 12 (1852). 

 Valparaiso (Dana). 



The following species are either too imperfectly characterized to ad- 

 mit of recognition, or do not belong to the genus Alpheus as at 

 present restricted. 



Alpheus aculeatus Sabine = Hippolyte gronlandica. 



Alpheus amethysteus Risso = Anchistia amethystea. 



Alpheus amphitrite White MS. 



Alpheus avarus Fabr. 



Alpheus caramote Risso = Peneus caramote. 



Alpheus cougneti Risso = fHippolyte sp. 



Alpheus elegans Risso = Gnathophyllum elegans. 



Alpheus elongatus Risso = Hippolyte sp. 



Alpheus ensiferus Risso Hippolyte sp. 



Alpheus marmoratus Fabr. = Hippolyte marmoratus. 



Alpheus monopodium Bosc. = Alpheus edwardsii. 



Alpheus olivieri Risso = Hippolyte sp. 



Alpheus polaris Sabine = Hippolyte polaris. 



Alpheus punctulatus Risso = ?. 



Alpheus pelagicus Risso = ?. 



Alpheus scriptus Risso = Anchistia scripta. 



Alpheus sivado Risso = Pasiphce sivado. 



Alpheus spinus Leach = Hippolyte spinus. 



Alpheus tamulus Fabr. 



Alpheus tyrrhenus Risso = Pontonia tyrrhena. 



Alpheus viridis Otto = Hippolyte sp. 



