Geol.— Vol. I.] ME K R /AM— FAUNA OF THE SOOKE BEDS. 1 79 



Genus Nassa Martini. 



Nassa Newcombei Merriam. 



Plate XXIII, Fig. 3. 



Nassa, sp. nov., Bull. Dep't Geol., Univ. Cal., Vol. II, No. 3, p. 106. 

 Nassa Newcombei Merriam, Nautilus. Vol. XI, 1897, p. 65. 



Shell between 25 and 30 mm. in length. Whorls five, with a well marked 

 shoulder, ornamented by numerous longitudinal and transverse ribs which 

 give the middle portion of the whorls a tessellated appearance. The upper 

 revolving rib, which forms the angle of the shoulder, is stronger than the 

 others and is usually separated from them by a distinct groove. On the last 

 whorl the transverse ribs (about 25) are dominant on the upper portion, 

 excepting the shoulder, and are latticed by the less conspicuous revolving 

 sculpture. On the lower portion of the whorl the transverse rib? disappear 

 leaving the well defined revolving ribs uninterrupted. 



Genus BuUia Gray. 



Bullia buccinoides Merriam. 



Plate XXIII, Fig. 5. 



Ancillaria, sp. nov.. Bull. Dep't Geol., Univ. Cal., Vol. II, No. 3, p. 106. 

 Bullia buccinoides Merriam, Nautilus, Vol. XI, 1897, p. 65. 



Shell ovate, whorls five. Spire short. Suture partially or entirely covered. 

 Aperture with strong anterior notch. Outer lip thin, sharp; inner lip with 

 broad callus. Length 25-30 mm. 



palieontological laboratory, 



University of California, 



Berkeley, California, 

 September, 1898. 



