CRETACEOUS FOSSILS. 157 



striate. Aperture obtuse behind, and very slightly notched ; outer 

 lip simple, inner lip very slightly incrusted, sinuous; anterior 

 notch small but distinctly defined. 



The present form has the carinated, or suhangulated posterior portion of the 

 whorl, characteristic of some species of the genus Bullia, hut more nearly the 

 shape of the sub-genus Buecinanops, d'Orb. 



The species is of the same general style as Bullia {Buecinanops) moniliferum, 

 Val., but its very low spire and small anterior notch, separate it. 



B. (M.) STRIATA, n. S. 

 PI. 26, Pig. 36. 



Shell small, compact; spire moderately elevated, whorls five, 

 convex, the first two smooth, the others longitudinally ribbed ; 

 suture deep, undulated, and bordered by a rib on the top of the 

 succeeding whorl. Surface ornamented by irregular longitudinal 

 stria?, some of which are more elevated than the others, and form 

 slightly sinuous ribs. Aperture broad, outer lip simple, very 

 obscurely notched adjoining the suture; inner lip very sinuous, 

 slightly incrusted; anterior notch deep, narrow and oblique, 

 bordered by two faint, variable folds, which revolve obliquely 

 around the canal. 



Length, .3 inch ; width, .2 inch ; length of aperture, .21 inch. 



Rare in the Tejon Group. Dr. Horn. 



A pretty little Buccinoid shell, entirely unlike anything else in California. 



TURBINELLA, Lam. 



T. CRASSITESTA, II. S. 

 PI. 26, Pig. 37. 



" Shell moderate in size, subfusiform, thick, spire low; whorls 

 four to four and a half, suture distinct. Surface marked by four 

 or five large revolving ribs on the middle and upper part of the 

 whorl, and smaller ones anteriorly, the larger of these are crossed 



