12 ON SOME TERTIAltY FOSSILS, 



This fossil is a good deal like some existing forms, but differs 

 in the peculiarly thickened almost entire aperture and the broad 

 oroove on the upper part of the whorls. The spiral lirse are also 

 very neat and characteristic. 



Drillia stiza. PL 2, fig. 11. 



Testa parva, elongato-Jusiformi. turrit a, spira quamapert. lonqiori, 

 nitente; anfr. 7^-, planatis, supra suturam late sulcatis, et 2 lirulis 

 cinctis, deinde carinatis, postea uni liratis, una serie granulorum, 2 

 lirulis et una carina zonatis ; undique crebre, longitud. unduloee, 

 striatis; sutura late sulcata ; apice obtuso ; nucleoli- anf. 1^ Icevib. 

 uni-costato ; apertura lata, labro simplici, labio refle.ro, crasso, canali 

 brcvi, acuto, sinu inconspicuo serie granulorum concurrents. Long. 

 9£, lat. 3£, long spirse b\. 



A small, elongately fusiform shell, with the following orna- 

 mentation on the whorls. Immediately above the suture there is 

 a wide, deep groove, then a sharp keel, then a thin thread, then 

 a series of small rounded granules, then two lirfe and another 

 keel. The suture is broadly grooved, and the apex has 1^ whorls 

 smooth and closely ornamented with crescentic rih$. The 

 aperture is broad, the lip thickened, the canal short _and 

 stout, and the sinus inconspicuous, apparently corresponding 

 with the series of granules. 



FUSTJS STYLIFOEMIS. PL 3, fig. 6. 



Testa parva, gracili, elonqato-Jusiformi, tenui, turita ; anfr. 7, 

 longis, prismaticis, convexis, parum declivibus, distanter conspicue 

 costatis et crebre spiraliter liraiis ; costis paucis (alt. anfr. 7), 

 concinnis, angustis ,rotundatis, parum elevaiis ; liris planatis, inter- 



# 



stitiis aquantibus, supra costcls transeuntibus, sutura impressa ; 

 apertura ovata, labro tenui, simplici ; columella planata, canali recto, 

 angusto, prcelongo, gracili. Long. 11, lat. 3. 



A small graceful elongately fusiform, thin, shell of 7 whorls, 

 which are rendered almost prismatic by the few projecting neatly 

 rounded ribs. These are closely crossed by close flat liree, which 



