190 CCELOCION. 



suture; the last whorl large, subovate beneath. Aperture 

 pyriform, narrowed above, the peristome thickened and con- 

 tinuous. Length 65, diam. 12 mm." (T. C.} 



New Guinea: Port Dorey (Raff ray). 



P. clausiliceformis T. C., Journ. de Conchyl., 1878, p. 169; 

 Comptes-rendus de 1'Acad. des Sci., 1878, p. 1150; Bull. Soc. 

 Zool. de France, 1878, p. 272; Ann. Mus. Civ. Genov., xix, 

 1883, p. 108, pi. 2, f. 11, 12. CROSSE, Journ. de Conch., 1879, 

 p. 39, pi. 1, f. 2. P. c. var. a, TAPPARONE CANEFRI, Ann. Mus. 

 Civ. Genov., iv, 1887, p. 129, pi. 1, f. 4, 5. 



Var. arfakiensis nov. (pi. 30, fig. 23). Shell in every way 

 smaller (T. C.). Mt. Arfak, in northern New Guinea (Bee- 

 cari). 



2. P. MINOR Smith. PI. 30, fig. 24. 



" Shell sinistral, elongate, cylindric, covered with a thin 

 greenish-yellow cuticle; spire very long, truncate; whorls re- 

 maining 7, slowly increasing, slightly convex, obliquely striate, 

 subplicate below the suture; separated by a steeply-sloping, 

 subcrenulate, impressed suture; last whorl ascending some- 

 what in front. Aperture somewhat ear-shaped, pale lilac 

 colored inside; peristome pale, continuous, lightly thickened, 

 a little expanded in front; columella somewhat twisted, 

 slightly truncate. Length 36, diam. 8 mm. ; aperture 9 mm. 

 long, 5 wide." (Smith.) 



New Guinea: Kapaur, on the southwest coast (W. Doherty). 



P. minor E. A. SMITH, Ann. and Mag. Nat. Hist., 6 ser., 

 xx, p. 414, pi. 9, f. 13 (Oct., 1897). 



" Much smaller than P. clausiliceformis of Canefri, of a 

 thinner texture, having finer sculpture, a differently colored 

 periostracum, and a less truncate columella ' (Smith). 



Subgenus CCELOCION Pilsbry, 1903. 



Shell similar to Perrieria in the cylindric-tapering form, 

 truncate summit, piriform aperture and continuous peri- 

 stome; but conspicuously umbilicate, with two lamellae within 

 the last whorl on the tubular axis, a spiral lamella on the 



