63 



imbricatus. Morch. 



iridescens. Con. 

 Jacobajus. Ph Hi. 

 Jacqueminii. Dhjk 

 Jenkinsianus. B> n. 

 Juliani. Rang. 

 laevirostris. Ben. 

 Landbeckii. Ph Hi. 

 Largillierti. Ph Hi. 

 latissinius. Sow. 

 Leioma. Ben. 

 ligula. Mouss. 

 longidentatus. Anton. 

 longus. Phili. 

 Maccarthyanus. Bourg. 

 macilentus. Ben. 

 Massini. More. 

 megapterus. More. 

 merdiger. Reeve. 

 Merodabensis. Vondembusch. 

 metastriatus. Con. 

 micellus. More. 

 micropterus. More. 

 montanus. Phili. 

 Moravicus. Jag's Cat. 

 Morini. Morelet. 

 Mosambicensis. Mart. 

 Monlinsianus. Dap. 

 musivus. Speng. 

 mytiloides. Desk. 

 nigricans. Fitz. 

 nitidens. Per. 

 nuculinus. Ph Hi. 

 nuperus. Zieg. 

 obtusa. Potier and Michaud. 

 orientalis. Fer. Parr. 

 ostreatus. Morelet. 

 Oxyrynckns. Mart. 

 pachysomia. Ben. 

 Paivanus. More. 

 paludosus. Morelet. 

 parallelus.* Con. 

 Pequottinus. Linsleg. 



1 Mr. Boivin gave me a U. parallelopipedon under this name. 



2 See note on U. Leaii. 



3 Is this not a Monocondylsea'? 



4 This name is used by Mr. Sowerby for a fossil species, and Mr. Conrad subsequently changed it to 

 porrectus on that account; but Mr. Sowerby has also used the latter name!! 



