220 PROCEEDINGS OF THE ACADEMY OF [1895. 



margin slightly reflected, the columellar margin forming a sinuous 

 ridge around the umbilicus, extremities united by a very thin cal- 

 losity; columella terminating in a strong, round, white tubercle. 



Length, 21 ; diam. 14? mm. 



Habitat, Kawailoa, Island of Oahu. 



Animal when extended in motion, longer than the shell. Mantle 

 and tentacles brown, the latter with the head above, of darker shade. 

 Foot light yellow, the superior portion of darker hue. 



The nearest allied species is A. SwiftiilH ewe; but the shape 

 and color of the shell, separate habitat, and difference of animal, 

 entitle it to rank as a distinct species. 



The native Hawaiians firmly believe in the power of Achatinelh, 

 to produce musical sounds. Hence the Hawaiian name, "pupu 

 kanioe," singing shells. Their legends ascribe to them a vesper 

 song. 



Acliatinella Cookei, n. sp. PI. X, fig. 15. 



Shell dextral, su Imperforate, solid, globose, with spire regularly 

 conical, apex subacute; surface shining, marked with fine incre- 

 mental lines; the apical whorls smooth. Color, basal portion below 

 the periphery jet black or sometimes brownish black, the apex 

 white, rest of the shell very light brown, darker on the sutural mar- 

 gin. Whorls 6, margined above, the first three plain, the rest con- 

 vex, the last inflated ; suture well impressed. Aperture very 

 oblique, oval, white within ; peristome obtuse, slightly thickened 

 within, narrowly reflexed, the columellar margin forming an obtuse, 

 sinuous ridge, with the small umbilical cleft almost covered by it; 

 extremities united by a thin callus; color purplish brown on both 

 face and the reflexed portion; columella terminating in a strong, 

 flexuous tubercle, tinged with purplish brown. 



Length, 21; diam. 15 mm. 



Habitat, Waiau, Ewa, Island of Oahu. 



Animal: Mantle dark slate with a narroAV brown band encircling 

 the outer edge. Superior portion of foot light brown, mottled with 

 slate, under surface dingy white. 



This species is rare and very local in its distribution. It has 

 affinities with A. turgida Newc. , which is found in the same dis- 

 trict, but differs somewhat in form and in the peristome. We are 

 unacquainted with the animal of A. turgida. If it proves identi- 



