138 JOURNAL OF THE NEW JERSEY 



simple, oblique ; no umbilicus. While. L. 15-20 ; D. 6-8 ; An, 

 33°; Wh. 6-11 ; Ap. J.— Conn, and south. Rare north of New 

 Jersey. 



3. Scala Grcenlandica, Perry. Shell with whorls touching and 

 having 8-15 stout, oblique ribs, with intervening, coarse ridges^ 

 and 7 or 8 revolving lines ; the ribs do not end abruptly at the 

 suture, but extend from whorl to whorl. Aperture bordered by 

 a rib which is notched at the base ; no umbilicus. L. 25 ; D. 9 ; 

 An, 35° ; Wh. 10 ; Ap. J — Cape Cod and north. Common north. 



4. Scala lineata, Say. Shell long-conic, pointed, with 17-19, 

 obtuse, stout, little elevated ribs on the body whorl, the ribs con- 

 tinued on the other whorls; the body whorl also lias a raised, 

 revolving line above a reddish-brown band; no umbilicus: 

 whorls touching. White, tinged witli brownish. L. 12; D. 5 ; 

 An. 36°; Wh. 8 ; Ap. i. — Whole extent. Rather common south. 



5. Scala multistriata, Say. Shell conic ; apex pointed ; whorls 

 in contact ; body whorl with about 16, regular, simple, moder- 

 ately elevated ribs; spaces with numerous, impressed, revolving 

 lines; no umbilicus. White; nucleus pale, glassy, few whorled. 

 L. 13; D. 5; An. 30°; Wh. 8; Ap. J.— Mass. and south. 



Family 57. PYRAMIDELLID/E. 



Shell white, slender, elongated, many whorled, mostly longi- 

 tudinally ribbed or spirally striate ; operculum horny, subspiral. 



* Columella without a fold 1. Turbonilla. 



* Columella with an oblique fold. (A.) 



A. Whorls not spirally grooved 2. Syrnola. 



A. Whorls with 1-15 revolving lines or grooves 3. Odostomia. 



1. Turbonilla, Risso. 



Shell slender, many whorled; whorls plaited ; apex sinistral ; 

 aperture simple, ovate; peristome incomplete; columella not 

 plaited. Most of the species of Turbonilla are deep water shells, 

 and are not here described as they are found only by dredging, 

 and in the stomachs of fishes. 



1. Turbonilla interrupta^ Tot. Shell small, slender; whorls 

 almost flat, with 20-30 obtuse ribs crossed by about 14 — ap- 

 parently 7 — revolving lines interrupted by the ribs ; a slight 

 shoulder on the whorls makes the suture distinct; aperture 

 ovate, angular above. Whitish-brown or amber-colored, glossy. 



