Oris;inal Descriptions of Achatinella. 63 



Length 0.72 in. (18 1-3 mill.), breadth 0.37 in. (7 2-5 mill.). 

 Length of body whorl 0.48 in. (12 mill.). 

 Average weight 4.80 grains. 



Var. A. Yellowish white. 



Var. B. Brown yellow. 



Var. C. Green. 



Var. D. Green or yellow at the base, and white above. 



Var. E. With but one or two black bands. 



Var. F. With four or five black bands. 



Remarks. Inhabits ravines near the centre of the main moun- 

 tain ridge of Oahu, and is allied to A. colorata Rve. and A. aincus 

 Pfr,, from that region, but represents, in its bands and general style 

 of coloring, A. trilincata Nob., one of the group of larger shells 

 found in the more eastern valleys. I have before me one dextral 

 specimen. — Gk. 



Hab. Halawa.— Gk. 



83. Achatinella longispira Smith. 



A. loHsispita Sm. P. Zool. Soc. London, 1873, p. 73, pi. ix, fig. 5. 



Testa sinistrorsa, elongato-subconica, imperforata, nitida, incrementi 

 lineis et traiisversim subtilissime striata, flava, zonis angustis spiralibus (.4-6) 

 viridibus fuscisque promiscue ornata ; sutura distincte saturate fusco mar- 

 ginata ; anfr. 6 1-2, convexi, primi 3 1-2 albidi ; apertura longitudinis 2-5 

 aiquans, alba ; perist. margine acuto intus limljatum ; plica columellaris 

 valida, rosacea. Long. 21, diam. 10 mill. 



Var. A. Testa brevior, ovato-conica. Long. 18, diam. 10 mill. 



Var. B. Testa flava, zonis modo A^iridibus ornata. 



Shell sinistral, elongate-subconic, imperforate, shining, trans- 

 versely very finely striated with lines of growth, yellow, promis- 

 cuously ornamented with (4-6) narrow spiral green and brown 

 bands; suture distincflly margined with dark brown ; whorls 6 1-2, 

 convex, first 3 1-2 whitish ; aperture equal to 2-5 of the length, 

 white ; lip with margin acute, edged within ; columellar fold 

 strong, rosy. 



Var. A, Shell shorter, ovate-conic. 



Var. B. Shell yellow, ornamented with green bands. 



This species is most nearly allied to A. analoga Gk., which is 

 readily distinguished from this b}' the two black lines upon the 

 periphery of the whorl. The black or dark brown lines of that 

 species belong to the solid substance of the shell, while the green 

 and yellow bands of this species belong to the epidermis. — Sm. 



Hab. Halawa. — Sm, Moanalua to Halawa. 



