76 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Named for Mr. Joseph R. Slevin, assistant curator of herpe- 

 tology, Cal. Academy of Sciences, who assisted Mr. Bruce 

 Martin in collecting at the type locality. 



Voluta martini, new species 

 Plate 11, figures 14a, 14b 



Shell large, nodose ; number of whorls unknown ; penultimate 

 whorl decorated by eight or nine sharply pointed nodes which 

 are situated on a shoulder two-thirds of the whorl-length below 

 a wavy irregular suture ; space between these nodes and the 

 suture of the preceding whorl smooth and slightly cOncave; 

 body- whorl elongate with shoulder situated about one-fourth 

 of whorl-length below suture; shoulder decorated by eight 

 nodes similar to those of the penultimate whorl ; body-whorl 

 decorated by growth lines only ; mouth elongate, oval ; outer 

 lip simple ; inner lip marked by four strong folds, the anterior 

 fold being the strongest; canal short, twisted. This species is 

 easily distinguished from V. lawsoni Dickerson by its more 

 elongate form. Two specimens were found by Mr. Martin. 



Dimensions : — Length of broken specimen. 38 mm. ; width 

 of body-whorl, 20 mm. 



Type :— No. 360, Cal. Acad. Sci. Locality No. 244, in the 

 east bank of Live Oak Creek about three-quarters of a mile 

 from its mouth. This locality is about three miles due east of 

 the mouth of Grapevine Canyon, Tejon group, vicinity of 

 Type Locality. Coll., Bruce Martin, for whom the specimen is 

 named. 



Voluta, species 



Plate 11, figure 15 

 An immature form which is apparently new was found at 

 Cal. Acad. Sci. Locality 244. The whorls of this form are 

 decorated by twenty sharp axial ribs crossed by equally spaced 

 spiral threads. Four very prominent plaits are formed on the 

 inner lip. Length of specimen is 7 mm. 



