OF CONCHOLOGY. 213 



7. ACHATLSELLA SUCCINCTA, NewCOTIlb. 



Proc. Boston Soc. Nat. Hist., July, 1855. 



Plate 13, fig. 7. s 



Description. — Shell obesely conoid, thin, shining, corneous, 

 longitudinally striate ; whorls 7, flatly convex, slightly rugose 

 above, not margined ; suture but slightly impressed ; aperture 

 broadly ovate ; columella deeply excavated, short, terminating 

 in a broad plicate tooth ; lip simple, slightly thickened within, 

 with or without a broad obsolete white or brown central band 

 on the last whorl, or a fine revolving sutural line of the same 

 colors. 



Long. 1°; lat. §$ poll. 



Habitat. — Ewa, Oahu. 



Remarks. — This species is the most obese of the Leptacha- 

 tinse, a sub-genus established by Dr. Gould and adopted by 

 Dr. PfeifYer. The specimen figured has a broad reddish-brown 

 band around the body whorl, and extending around the whorl 

 above, near the suture. 



8. ACHATINELLA FTJSOIDEA, Newcomb. 



Annals, &c, 1855. 



Plate 13, fig. 8. 



Description. — Shell sinistral, rather solid, elongately pro- 

 duced ; whorls 6-7, scarcely rounded (excepting the last), mar- 

 gined above ; suture well impressed ; aperture roundly ovate, 

 small ; columella very short, robust and twisted ; lip simple 

 above, slightly expanded below. Color, straw yellow. 



Long. || ; lat. fj-$ poll. 



Habitat. — E. Maui. 



Remarks. — This is an exceedingly rare species, but two spe- 

 cimens having come under my observation, one of which serves 

 for the illustration, the other in the cabinet of the late Hugh. 

 Cuming, in London. 



9. Achatinella Dwightii, Newcomb. 



Annals, &c, 1855. Kepublished by Dr. Pfeiffer in Zool. 

 Proc, Nov., 1855. 



Plate 13, fig. 9. 



Description. — Shell oblong conical, sinistral, solid ; surface 

 covered with oblique longitudinal striae, cut across by very 

 numerous fine, slightly undulating cross strias ; whorls 6, flatly 

 convex, crenulated at the sutures ; suture simple, well marked ; 

 aperture ovate ; columella broad, short, and slightly twisted ; 



