Vol. VII] WARING—STRATIGRAPHIC AND FAUNAL RELATIONS 81 



readily distinguished from that in the Tejon, or upper Eocene. 

 A typical specimen of V. planicosta venturensis measures 73 

 mm. in height and 67 mm. in length, while a similarly perfect 

 specimen of V. planicosta hornii measures 82 mm. in height 

 and 100 mm. in length. 



SCAPHOPODA 



Dentalium cooperii Gabb 



D. cooperii Gabb, Pal. Gal., vol. 1, p. 139, pi. 31, fig. 100. 



Shell tubular, symmetrically tapering, slightly curved ; aper- 

 ture circular or elliptical ; open at both ends ; surface smooth 

 and polished, and large specimens sometimes show longi- 

 tudinal impressed lines. The thickness of the shell varies in- 

 dividually, but is usually thick. Locality 4, L. S. J. U. Pal. Coll. 



This species occurs also in the Tejon formation. 



Gasteropoda 



Actaeon merriami, new species 



PL 14, Fig. 11 



Shell very small, subovate, spire rather high ; whorls five, 

 regularly rounded ; suture channeled ; surface of whorls marked 

 by narrow revolving ribs ; outer lip simple ; inner lip marked 

 by revolving ribs ; aperture elongate, anterior round and wide, 

 posterior angular. Locality 4, L. S. J. U. Pal. Coll. 



This species is smaller, and higher in proportion to the diam- 

 eter than A. lawsoni Weaver.*"^ Named in honor of Dr. J. C. 

 Merriam of the University of California. 



Bathytoma boundeyi, new species 



Shell small, broadly fusiform, spire elevated; whorls six, 

 angulated in the middle, sloping and slightly concave above, 

 slightly convex below ; numerous fine revolving linear ribs 

 above the angle, and below are four, subacute revolving ribs 

 with broad concave interspaces ; fine ribs also cover the base of 

 the canal ; aperture broad above, narrowing into the slender 



"Bull. Dept. Geol. U. C, vol. 4, pi. 13, fig. 10. 



