BY J. S. KINGSLEY. 125 



Alpheus truncatus Kingsley. 



Betceiis truncatus Dana. U. 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. 



Betceus scahrodigitus 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 Bisso = Anchistia amethystea, 



Alpheus amphitrite Jlliite MS. 



Alpheus avarus Fabr. 



Alpheus caramote Bisso = Feneus caramote. 



Alpheus cougneti Bisso = ?Hipx>olyte sp. 



Alpheus elegans Bisso = Gnathophyllum elegans. 



Alpheus elongatus Bisso = Hippolyte sp. 



Alpheus ensiferus Bisso = Hippolyte sp. 



Alpheus marmoratus Fabr. = Hippolyte marmoratus. 



Alpheus monopodium Bosc. = Alpheus edwardsii. 



Alpheus olivieri Bisso = Hippolyte sp. 



Alpheus polaris Sabine = Hippolyte polaris. 



Alpheus punctulatus Bisso = ?. 



Alpheus pelagicus Bisso = ?. 



Alpheus scriptus Bisso = Anchistia scripta. 



Alpheus sivado Bisso = Fasiphce sivado. 



Alpheus spinus Leach = Hippolyte spinus. 



Alpheus tamulus Fabr. 



Alpheus tyrrhenus Bisso = Pontonia tyrrhena. 



Alpheus viridis Otto = Hippolyte sp. 



