146 University of California Publications in Geology [Vol. 8 



TRITONIUM MARTINEZENSIS, n. sp. 

 Plate 15, figure 2 



Shell fusiform, turreted, spire high and nearly equal in length to 

 mouth ; whorls six ; suture impressed. Mouth wide above, narrowed 

 in advance, canal slightly curved. Surface marked by prominent 

 nodes on the angles of the whorls, prolonged markedly below, but not 

 above. Well-marked spiral lines of uniform size cover both the nodes 

 and surface of the shell. 



Dimensions. — Height of shell, 20 mm. ; height of spire, 7 mm. ; 

 width of body whorl, 7 mm. 



Occurrence. — University of California Locality 1556. 



This Tritonium resembles T. whitneyi Gabb in some respects. The 

 drawings of T. whitneyi (Palaeontology of California, vol. 1, plate 28, 

 figs. 210 and 210a) are strikingly like this shell, but the type specimen 

 of T. whitneyi differs in the following ways: (1) T. whitneyi has seven 

 or eight whorls; (2) its nodes are only "prolonged slightly below and 

 above"; and (3) its revolving lines alternate in size and divide the 

 nodes into two parts. 



HEMIFUSUS(?) WARINGI, n. sp. 

 Plate 15, figure 10 



Shell fusiform, with short spire ; number of whorls unknown ; body 

 whorl biangular, with about fifteen axial ribs which become nodose at 

 the angles. One of the angles is situated at the middle of the outer 

 lip, while the other is slightly below the suture. The suture is 

 enveloped by the preceding whorl. Outer lip simple ; columella in- 

 crusted. Canal moderately long and nearly straight. Five rounded, 

 spiral lines ornament the body whorl. 



Dimensions. — Height of broken specimen, 28 mm.; width of body 

 whorl, 22 mm. 



Occurrence. — The species was found in the upper (?) Martinez 

 along the Santa Fe Railroad, about two miles east of Martinez. It is 

 doubtfully referred to Hemifusus. When better specimens are found 

 it may be placed in the genus Clavella. 



Named in honor of Mr. C. A. Waring. 



FUSUS DUMBLEI, n. sp. 

 Plate 16, figure 6 



Shell fusiform, whorls nine, angular. Spire about half length of 

 shell. Angulation is central on whorls. Space above and below angles 



