76 Cincinnali Society of Natural History. 



321 Streptorhjnchus sulcatus, DeVerneuil. L. sulcatus, furrowed. 



322 sinuatus, Emmons. L. sinuatus, curved. 



323 nutans, James. L. nuto, I bend. 



324 subtentus, Conrad. L. sabtentus, somewhat distended. 



325 Hallianus, S. A. Miller. 



Note. — 8. neglectus, James, is regarded as a synonym of 

 S. Jilixtextus, Hall; S. elongatns, James, and S. 

 vetust'us, James, oi! S. 2^i'-^'>i^umbonus, Hall; S. x>licaius. 

 James, and *S'. apiJroxiniatus, James, of S. subtextub^ 

 Conrad. 



Genus Leptwna, Dalman. Gr. leptos, straight or narrow. 



326 Leptrena sericea, Sowerby. L. sericeus, silken. 



327 var. aspera, James, L. asper, rough. 



Order Lyopomata. Gr. liio, I loosen; poma, a lid. 

 Family Craniidce. Gr. kranos^'a helmet. 



Genus Crania, Retzius. 



328 Crania Dyeri, S. A. Miller. 



329 Loelia, Hall. Mythological. 



330 multipunctata, S. A. Miller. L. multics^ many ; punyo, I 



puncture. 



331 scabiosa, Hall. L. scabiosus, scabby. 



332 reticularis, S. A. Miller. L. reticulum, a little net. 



333 parallela, Ulrich. L. parallelus, parallel. 



334 percarinata, Ulrich. L. per, through ; carina, a keel. 



335 socialis, Ulrich. L. socialis, associated. 



Genus Schizocrania, Hall and Whitfield. Gr. schizo, I separate; 



Tcranos. 



336 Schizocrania filosa, Hall. L. jilum, a thread. 



Genus Pholidops, Hall. Gr. plioleo, I bore; ops, appearance. 



337 Pholidops Cinciunatiensis, Hall. 



Family Discinidce. L. dis, asunder; scindo, I split. 

 Genus Discina, Lamark. 



338 Discina tenuistriata, Ulrich. L. tenuis, fine; stria, a ridge. 



339 sublamellosa, Ulrich. L. sub, somewhat; lamella^ a smalj 



plate or seal. 



