190 University of California Publications in Geology [Vol. 8 



TEITONOFUSUS EIVEESI, n. sp. 

 Plate 21, figure 2 



Shell about sixty millimeters in length, fusiform, smooth ; spire 

 a little more than one-third the total length of the shell, with an acute 

 apex ; whorls of the spire convex, polished, diminishing rather rapidly 

 in size toward the apex ; suture distinct though not channelled ; body- 

 whorl inflated, gracefully convex, slightly constricted at the suture ; 

 aperture ovate; outer lip thin, smooth; inner lip thinly incrusted; 

 canal rather short, wide, nearly straight. 



Dimensions. — Length of the type specimen, 60mm.; diameter of 

 the body-whorl, 30 mm. ; length of the aperture, including the canal, 

 35 mm. 



Occurrence. — Found rarely at Timms Point, San Pedro, Califor- 

 nia, in beds called Pliocene by Ralph Arnold. 



Type specimen in the collections of the California Academy of 

 Sciences. 



Named in honor of Dr. J. J. Rivers of Santa Monica, California. 

 Genus Volutopsius Morch 



VOLUTOPSIUS EUEEKAENSIS, n. sp. 

 Plate 19, figure 3 



Shell of moderate size, thick, solid, subfusiform, with about six 

 smooth, slightly rounded whorls ; spire moderately high, about one- 

 third total length of the shell ; apex subacute ; whorls of the spire 

 increasing rapidly in size, tapering, slightly convex ; surface of the 

 whorls smooth except for the axial lines of growth ; greatest diameter 

 of whorls at the anterior margin ; suture distinct, slightly appressed ; 

 body-whorl large, ventricose, rounded ; aperture broadly elliptical ; 

 outer lip semicircular; inner lip smooth, faintly calloused; canal 

 straight, very short. 



Dimensions. — Length of the type specimen, apex defective, 53 

 mm. ; maximum diameter, 37 mm. ; length of aperture, 30 mm. ; width 

 of aperture, 17 mm. 



Occurrence. — The type and four other specimens were obtained 

 from the upper Miocene near the mouth of Bear River, Humboldt 

 County, California. University of California Locality 1863. 



