86 THE NAUTILUS. 



furrow which becomes obsolete toward the aperture. The base of 

 the shell otherwise exhibits faint revolving sculpture. 



Dimensions: Altitude, 36 mm,, diameter maximum, 34 mm. 

 The above combines the sculptural features of the Japanese 

 Chlorostomas and West Mexican Uvanillas, more particularly U. 

 olivacea. It is a much handsomer shell than the latter and the most 

 northerly form of the group yet detected on the West Coast, 



Chlorostoma gallina Forbes var. multifilosa Stearns. 



Shell imperforate, large, solid, turbinate globosely conical, 

 elevated ; whorls five-and-a-half to six-and-a-half, rounded ; suture 

 simple not channeled ; apex obtusely pointed, eroded and yellowish ; 

 color nearly black ; sculpture consisting of numerous spiral or 

 revolving closely set narrow rounded ridges or costse, alternating 

 with fine incised whitish lines or grooves. Aperture rounded 

 oblique, interior pearly, outer edge rimmed with black and finely 

 crenulated by the projecting ends of the modified whitish grooving. 

 Columella arcuated with two blunt tubercles near the base and a 

 shallow umbilical pit above; base convex. 



Dimensions: Altitude, 36 mm., diameter maximum, 34 mm. 



The above differs from the typical gallina in the absence through- 

 out of any longitudinal markings or sculpture and from Hemphill's 

 var, tincta by the lack of the " streak of yellow on the base just 

 below the columellar teeth," also by the conspicuous ribbing and 

 groo^^ng of the entire surface, while in tincta as described, " the 

 spiral grooves" are "generally scarcely visible above." 



While strongly characterized, the example before me can hardly 

 be assigned to a higher than varietal rank. 



The two forms above described were collected by Captain George 

 D. Porter at Guadaloupe Island oflTthe coast of Lower California. 



Bulimulus (Pleuropyrgus) Habeli Stearns. 



Shell slender, elongated, thin, smooth and shiny, slightly umbil- 

 icated, with thirteen to fourteen gradually increasing whorls ; whorls 

 slightly convex and longitudinally obtusely plicated ; suture distinct ; 

 aperture ovate and slightly reflected at the base of the columella. 

 Color ashen white, slightly rufous, with hints of a narrow reddish 

 band beneath the surface glaze. 



Dimensions (of largest example) : Long, 17'5 mm., diameter, 

 3'5 mm. 



