CRETACEOUS FOSSILS. 155 



Length of a broken specimen (a cast), 2 inch ; width of body whorl, 1.3 inch ; 

 length of aperture, 1 inch -f-. 



I have seen but a single specimen of this species, and that a cast, but I venture 

 to describe it because it is so different from all the other fusiform shells in the for- 

 mation, that it cannot well be mistaken. The impression on the matrix, and traces 

 of ribs on the cast, together with small fragments of shell, show the surface to 

 have been costate ; and some plications at the oral margin of the cast, indicate 

 either a dentate or plicate labrum. There is a trace of but a single varix, and that 

 high up on the spire ; this shows traces of numerous, well marked teeth. 



Tejon Group, Arroyo de los Alisos, Tejon. 



T. (T.) FUSIFORMIS, n. 8. 

 (Pal. Cal., Vol. 1, pi. 18, fig. 45.) 



Shell small, short fusiform, spire nearly as long as aperture; 

 whorls five and a half, angulated. Aperture moderately wide, 

 biangular posteriorly, narrowing in advance; inner lip slightly 

 curved and incrusted; upper portion of body whorl flattened. 

 Surface marked by fifteen or sixteen longitudinal ribs, diminish- 

 ing from the angle towards the suture, and extending anteriorly 

 to near the middle of the shell; these are crossed by numerous 

 revolving ribs ; on the external surface can be seen one or two 

 arrests in growth, indicated by a crowding and increase in size of 

 lines of growth, and corresponding to a more strongly marked 

 internal varix. 



Figure, above quoted, somewhat enlarged ; one of the varices is shown on the 

 body whorl, near the aperture. Tejon Group, Tejon. Eare. 



This shell was overlooked while writing the descriptions for the first volume of 

 the California Eeport; and I did not detect the mistake until too late to rectify it. 



BRACHYSPHINGUS, N. Gen. 



Shell bucciniform, short, robust, thick; spire low; aperture 

 large, notched anteriorly; outer lip simple; inner lip incrusted 

 with a smooth callus ; surface longitudinally ribbed or striate. 



The nearest allied genus to this, is Cominella; they differ, in the present form 

 wanting the high spire, and the compression of the whorls near the suture, char- 



