PACIFIC COAST SPECIES. 183 



Var. i-aiiientosa, Gould. 



Shell umbillcate, depressed-globose, solid, obliquely striated aud 

 marked with oblong, somewhat regular granu- 

 lations formed by striie descending toward 

 the anterior part; yellowish, with one re- 

 volving reddish band; spire shortly conic; 

 Avhorls 5i, somewhat convex, the last broad, Heiix reticulata. 



rounded, not falling in front; umbilicus narrow, not pervious; aper- 

 ture diagonal, roundly lunate; peristome white, thi<kened, its ends 

 not converging, the right scarcely expanded, the columellar sloping, 

 dilated above aud reflected. Greater diameter 22, lesser 18""" ; height, 

 Hi"'"'. (Pfeiffer.) 



Helix ramentosa, GorLD, Proc. Bost. Soc. Nat. Hist., vi, 11 (184.3); Terr. Moll. U. S., 



iii, 12.— Pfkhfeu, Mou. Hel. Yiv., iv, 349.— W. G. Bixxev, Terr. Moll., iv, 



13. 

 Aglaja ramentosa, TuYOX, Am. Journ. Conch , ii, 3l4 (1862). 

 Helix Farkeri, Tkyon, 1. c, iii, 105. 

 Helix reticulata, Pfeiffeu, Mai. Bliitt., 18.57, 87; Mou. Hel. Viv., iv, 270; Nov. 



Couch., i, 120, pi. xxxiv, fig. 47.— AV. G. Bixxfy, Terr. Moll., iv, 12; L. & 



Fr.-W. Sh.,i, 169, fig. 294 (1869). 

 Helix Bridgesii, Newcomb, Proc. Cal. Acad. Nat. Sci., ii,91 (1861). 

 J'jlaja Bridyesii, Tryon, Aui. Jouru. Couch., ii, 313 (1866). 

 Arionta ramentosa, W. G. Bixxey, Terr. Moll., v, ^64. 



Napa County to Santa Clara County, California, in the California 

 Eegion. 



Fig. 107 is a fac-simile of one of Pfeiffer's, of reticulata, and his descrip- 

 tion is given above. A smaller form of this variety, from San Pablo, 

 is here figured (Fig. 108). 



The original descri[)tion of ramentosa here follows. There can be no 

 doubt of the identity of the two forms. 



Shell perforate, suboibicular, depressed, thin, reddish, fig. los. 

 with a smoky, white-margined band revolving at the peri- 

 phery, granulated with incremental lines and equally 

 oblique, decussating furrows; whorls 5i, rather convex, 

 the last obtusely angulated; suture deeply impressed; ap- 

 erture obliquel}" oblong-ovate; peritreme acute behind, 

 white, decidedly reflected towards the umbilicus; throat 

 reddish. Greater diameter, 20"'"' ; height, 12""". 



A. ramentosa, 



Dr. Cooper has informed me that Dr. Newcomb sent the ^""'^^ ^''"- 



