244 AMERICAN JOURNAL 



8. GoNioBASis EUBiGiNOSA, Lea. — t. 24, f. 13. 



Description. — "Shell carinate, somewhat awl-shaped, rather 

 thin, shining, reddish, obscurely banded; spire subattenuate ; su- 

 ture very much impressed; whorls about six, convex; aperture 

 very small, subrhomboidal, pale reddish and obscurely double- 

 banded within; outer lip acute, sinuous: columella slightly 

 bent in and twisted. 



Operculum broadly ovate, dark brown, with the polar point 

 near the left margin above the base. 



Habitat. — Oregon. W. Newcomb, M. D. 



Dimensions. — Diam. -27 inch. Length '74: inch. 



Remarks. — Two specimens only were sent to me by Dr. New- 

 comb. The four upper whorls are carinate, and a small thread- 

 like line below runs parallel with the more raised one. The 

 two obscure bauds are near to each other and are in the mid 

 die of the whorl. In outline it is near to Melania [Goniobasis) 

 nigrina.1 (nobis,) but it is a larger species, with a less polished 

 surface and of a very much lighter color. It differs entirely 

 in being carinate. In both these specimens the whorls are 

 slightly depressed below the suture, which modifies the outer 

 lip. One of the specimens has an obscure brownish spot inside 

 at the base of the columella. The aperture is about two-sev- 

 enths the length of the shell." 



• 



Mr. Lea has neglected to mention, that the caringe are repre- 

 sented on the body whorl by obscure lines above and below 

 the periphery, with the surface somewhat flattened between 

 them. 



I have seen no specimens, except those in Mr, Lea's collec- 

 tion, which are eroded, but have very little doubt that the ini- 

 tial whorls of perfect specimens would be plicate, as they 

 are in the other lengthened cylindrical species of Oregon. 



9. Goniobasis circumlineata, Tryon. — t. 24, ff 14, 15. 



Description. — Shell inflated, fusiform, thick, very dark green- 

 ish black, or dark horn color, without bands ; spire elevated, 

 apex acute; Avhorls 6 to 7, convex, the initial ones sometimes 

 slightly folded, suture much impressed; body whorl well- 

 rounded, obscurely many angled, the planes produced by ir- 

 regular revolving raised lines; aperture small, oblique, ovate, 

 or nearly rhomboidal, columella smooth, callously thickened, 

 incurved and recurved ; color within generally deep reddish- 

 brown, sometimes white. 



Dimensions. — Length 7-8 inch, diam. 3-8 inch; length of aper- 

 ture nearly 5-16 inch. (Fig. 14.) 



