Vol. V] DICKERSOX— FAUNA OF THE TYPE TEJON 59 



This species is less angulated than N. triangnlata Gabb and 

 its spiral threads are beaded. 



Dimensions : — Length. 7mm. ; width of body-whorl, 8mm. 



Type: — No. 290, Cal. Acad. Sci. Locality 183, in the west 

 bank of the Cowlitz River about one and three-fourths miles 

 southeast of Vader (Little Falls), Washington, about one- 

 half mile south of Locality 182. 



Named for its occurrence on Cowlitz River, Washington. 



Neritina martini, new species 

 Plate 5, figures 8a, 8b 



Shell medium in size with two and a half whorls; spire 

 immersed; body-whorl very wide, rounded to sub-quadrate, 

 with flattened top which is perpendicular to axis of shell ; outer 

 lip sharp, smooth within, entire; callus large with straight 

 interior edge which is slightly dentate; surface decorated by 

 sinuous axial growth lines. 



This is the first representative of this genus reported from 

 the West Coast Eocene, 



Dimensions: — Length, 18mm.; width of body-whorl, 21mm. 



Type: — No. 291, Cal. Acad. Sci. Locality 183, in the west 

 bank of the Cowlitz River about one and three-fourths miles 

 southeast of Vader (Little Falls), Washington, about one- 

 half mile south of Locality 182. 



Named in honor of Mr. Bruce Martin who collected the 

 species at its type locality, 



Rimella elongata (Weaver) 

 Plate 6, figure 2 



Rimella canalifera elongata Weaver, C. E. "A Preliminary 

 Report on the Tertiary Palaeontology of Western Washing- 

 ton". Bull. 15, Wash. Geol. Surv., pp. 37-38, 1912. 



The specimen figured agrees with Weaver's description and 

 since it came from the type locality of the species it is evi- 

 dently the same. It differs so very much from R. canalifera 

 Gabb that it was thought best to raise it to specific rank. Dr. 

 Weaver pointed out these differences very well. "This variety 

 is characterized by ten instead of six or seven whorls, by its 

 more slender form, and differences in external ornamentation." 



