34 THE NAUTILUS. 



I would like to see an interest taken in this neglected group of 

 mollusca. 



DESCRIPTIONS OF NEW SPECIES OF ACHATINELLID^ FROM THE 

 HAWAIIAN ISLANDS. 



BY D. D. BALDAVIN. 



Amastra henshaivi n. sp. 



Shell dextrnl, imperforate or subperforate, solid, ovately conical, 

 apex subacute ; surface lusterless, striated with somewhat irregular 

 lines of growth ; embryonic whorls under a lens showing very deli- 

 cate radiating sulcations. Color varies from light to very dark 

 brown, the upper whorls generally much darker than the body whorl ; 

 the lower whorls with traces of a deciduous, brown epidermis. 

 Whorls 6, somewhat convex, the last one with a light carination at 

 the periphery ; suture well impressed. Aperture ovate, a little ob- 

 lique, livid white within ; peristome acute, slightly thickened within, 

 extremities united with a thin, livid-white parietal callosity; colu- 

 mella white, flexuous, abruptly terminating in a thin lamellar plait. 



Length 18, diam. 10 mm. 



Habitat: South Kona, Island of Hawaii. 



Found in damp woods at the roots of ferns and nearly bui'ied in 

 trash, at altitudes of from 1,800 to 4,000 feet. 



We take pleasure in dedicating this shell to Prof. H. W. Henshaw, 

 formerly of the Smithsonian Institution, Washington, D. C. He 

 discovered both this and the following species. The Professor is at 

 present a resident of Hilo, Island of Hawaii, and his explorations are 

 contributing largely to our knowledge of tlie land fauna of this island. 



Amastra saxicola n. sp. 



Shell dextral, imperforate, rather solid, elongately ovate-conic, 

 apex subacute ; surface lustreless, sculptured with delicate growth 

 lines ; embryonic'whorls smooth and polished. Color reddish-brown, 

 tending to lighter shade on the middle whorls ; apex pearly white ; 

 destitute of the usual fugacious epidermis of this genus. Whorls 7, 

 slightly convex ; suture well impressed. Aperture ovate, a little 

 oblique, pinkish within. Peristome simple, acute, not thickened 

 within, extremities joined by a very thin, pinkish parietal callosity; 



