210 AMERICAN JOURNAL 



2. AcHATiNELLA Anthonii, Newcomb. 



Proceedings Cal. Acad. Nat. Sci., 1861, page 93. 



Plate 13, fig. 2. 



Description. — Shell conically ovate, solid, blackisli-brown, 

 .longitudinally striate ; wliorls 6, inflated ; suture moderately 

 impressed ; apex obtuse ; aperture obliquely ovate, subangu- 

 late below; lip simple, thickened within; columella short, 

 straight, with a somewhat callous plication below the middle. 

 "White banded below the suture, and of a dirty white in the 

 umbilical region. 



Remarks. — Excepting in size, and in being more ventricose, 

 this species makes a near approach to A. nucleola^ Gould. It 

 is more than quadruple the size of nucleoid, and not acute at 

 the summit, by which it can be at once distinguished from 

 that species. For this and the preceding species I am in- 

 debted to the Rev. Mr. Johnson, of Koloa. It is named after 

 the eminent naturalist, John Gr. Anthony, Esq., of Cincinnati, 

 Ohio. 



The specimen selected for figuring is more obese than usual, 

 and less elongated. A well-marked variety has the last whorl 

 of a pale straw color. 



3. ACHATINELLA NIGRA, NeWCOmb. 



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

 Plate 13, fig. B. 



Description. — Shell dextral, globosely acuminate, rather 

 solid ; the two lower whorls inflated, the superior ones sub- 

 ulate; whorls 6, the last two cat up on the surface into rude 

 cicatrices by longitudinal stria3, crossed by revolving eleva- 

 tions, irregularly distributed ; superior whorls flattened, with 

 closely-crowded, strong, longitudinal strias ; suture simple, well 

 impressed ; aperture round ovate ; columella short, terminating 

 in a lamellar tooth. Color yellowish-white, with a thin black 

 epidermis. 



Long. '70 lat., '45 inch. 



EaUtat. — E. Maui. 



Remarks. — This species occupies an intermediate space be- 

 tween A. ohesa, nob., and A. Kauaiensis, In adult specimens 

 the lip within is thickened by a heavy white deposit, and the 

 tooth from the same cause changes from a lamellar to a nodu- 

 lous form, as in the specimen figured. 



