46 C^ECILIOIDES, SECT. GEOSTILBIA. 



Blender, subcylindric but tapering. Whorls 4, regularly in- 

 creasing, separated by a very oblique, impressed suture mar- 

 gined with a pellucid line; last whorl oblong, larger. Aperture 

 piriform, the right margin arching forward; peristome simple, 

 acute, scarcely thickened, the margins joined by a rather opaque 

 callus. Columella somewhat callous, very slightly truncate 

 above the base. Basal margin rounded. Length 3.75, diam. 1, 

 aperture alt. 1 mm. (Ancey}. 



Hawaiian Is.: Manoa, Oahu (Baldwin). 



GacUitineUa baldwini ANC. , Memoires Socit6 Zoologique de 

 France, v, 1892, p. 718. 



Specimens of presumably this species are in the Bishop 

 Museum at Honolulu from the following places: Rocky Hill, 

 Honolulu; Kanaohe, Oahu; Mana, Hawaii. I have no exam- 

 ples at hand, but so far as the description goes there seems to 

 be no difference between this species and O. gvndlachi. 



42. C. BALANUS ('Benson' Reeve). PL 4, figs. 60, (61?) 



Shell cylindrically oblong, somewhat fusiform; whorls 4, 

 smooth, shining; apex obtuse; columella arched, truncated; 

 aperture small. Dull white. (Reeve}. 



Shell almost cylindric-aeiculate, smooth, glassy-clear. Spire 

 almost cylindric, slightly tapering above, with an obtuse apex; 

 suture very little impressed. Whorls 4, rapidly increasing, the 

 last forming two-fifths the total length, dilated basally. Colu- 

 mella rather straightly receding, scarcely noticeably truncate at 

 the base of the broadly angular-ovate aperture. Peristome 

 simple, unexpanded, acute. Length 3, diam. hardly 1 mm. 

 (Pfr., from spec, from Benson's collection). 



India: Banks of the Jumna near Hameerpore, Bundelkund 

 (type loc. ) ; border of the desert pouth of Hawee; Agra, on the 

 right bank of the Jumna (Benson); Kattiwar (Hanley). Dec- 

 can and Sind (Ind. MUP. ). Aden (Paladilhe, O. isseli}. 



Achatina balanus Benson MSS., REEVE, Conch. Icon., v, pi. 

 20, f. 109 (March, 1850). PFR., Monogr., iii, 506; iv, 627; vi, 

 241; Conchyl. Cab., p. 315, pi. 25, f. 18, 19. HANLEY and 

 THEOBALD, Conchologia Indica, p. 41, pi. 102. f. 10(?). 

 BLANFORD, Journ. Asiatic Soc. Bengal, vol. 44, 1875, pp. 43, 



