14 ON SOME TERTIARY FOSSILS, 



OOLUMBELLA HEMIOTHONE. PL 3, fig. 8. 



Testa fusiforme-ovata, parva, solidiuscula, nitente, opaca ; anfr 

 7, convexis 3 ult. crebre, quasi textilose cancellatis, 2 spirce distanter 

 regulaviter costatis, 2 anfr. nucl. Icevibus ) apertura ovata, labro 

 tenui, simplici ; columella definita, p)olita, parumplanata, canali vix 

 recur vo. Long 9£, lat. 3^. Lirce longitud. anfract. ult. paulo 

 majori. Basi 3 lineis gr anulosis, spiralit^r cinctis. 



Shell fusiformly ovate, small, rather solid, shining opaque. 

 Whorls seven, convex. The three last are very closely and finely 

 cancellate, but the longitudinal lines are rather more conspicuous 

 and rib-like, and the base of the last whorl has three spiral lines 

 of granules rather distant from each other. Two of the whorls 

 of the spire are conspicuously ribbed with rather convex ribs, and 

 the two whorls of the nucleus are smooth. The aperture is ovate 

 the outer lip simple, columella well defined, flattened and polished 

 and the canal short and not recurved. 



It is evident that this fossil departs very widely from typical 

 species of Columbella, yet I cannot see anywhere else to place it. 



2Esopus semicostatus. PL 3, fig. 9. 



Testa elongato-fusiformi, turrita, parva, tenui, opaca ; anfr. 8, 

 rotundatis, declivibus, regulariter 5 — 8 carinatis, 4, anfr. opicalibus 

 spirce distanter costatis, nucleo, 2% anfr. elongato, declivi, polito ; 

 costis angustis, elevatis, concinnis ; carinis acutis, parum elevatis ; 

 interstitiis tenuiter crebre costatis ; apertura ovata, polita, sulcata; 

 labro varice insignito, co ncavo, columella occulto, canali brevi recurvo. 

 Alt. 71 lat. 2i, spir. 5. 



Shell small, elongately fusiform, turretted, spire much longer 

 than the aperture, thin, opaque ; whorls 8, rounded, sloping 

 regularly, 5 to 8 keeled ; 4 apical whorls of of the spire are ribbed 

 and the nucleus of 2£ whorls, elongately sloping and polished. 

 The spire ribs are narrow, raised, neat ; the keels acute slightly 

 raised ; the interstices finely, closely ribbed, so as to give the 

 whole shell a somewhat latticed appearance. Aperture ovate, 



