PARTULINA, MAUI. 57 



Achatinella fasdata GUL., Ann. Lye. vi, p. 201, pi. 7, f. 30, 

 1856. 



Figured from Honokawai shells of the Gulick collection. 

 Hardly distinguishable from var. ampulla; I think them ex- 

 tremes of one variety. The figures are from topotypes from 

 Gulick. The same form is in the Gulick collection from 

 Wailuku. 



286. P. tappaniana ampulla (Gulick). PL 12, fig. 4. 



" Shell sinistral, sometimes slightly perforate, elongate, sub- 

 pyriform, rather thin, shining, finely striate, scarcely decussate 

 beneath the lens, white, with a broad chestnut band encircling 

 the base, and revolving within the shell beneath the suture, 

 sometimes with fine spiral lines above; apex subacute; spire 

 concavely conical, sometimes decollated; whorls 6^, convex, 

 margined above; the last inflated, equal to T 6 -^ of the length; 

 columella white, plaited near the whorl, strongly twisted, not 

 tuberculate; aperture rounded; peristome expanded, reflected, 

 very slightly thickened; with columellar margin reflected, adnate 

 or slightly detached; parietal margin wanting. Length 23; 

 breadth 13; length of aperture 10 mm. Weight 6 grains" 

 (Gulick). 



Maui: Honukawai, on trees, S. T. Alexander. 



Achatinella ampulla GULICK, Ann. Lye. vi, 200, pi. 7, f. 29. 



"This species differs from A. fasciata Nob., to which it is 

 closely allied, in the concave outlines of the spire, in its inflated 

 body whorl, and more expanded and reflected lip" (Gulick). 



28c. P. tappaniana eburnea (Gulick). PL 12, figs. 9, 10, 11, 12. 

 "Shell sinistral, usually perforate, ovate-conic, somewhat 

 solid, shining, striated, very minutely decussated, ivory-white; 

 apex rather acute; spire concavely conical; suture slightly mar- 

 gined, lightly impressed; whorls 6, slightly convex; the last 

 large, obliquely produced, and angulated above the aperture; 

 columellar fold central, white, strong, nearly transverse; aper- 

 ture oblique, truncately auriform, white within; peristome 

 thickened; with external margin reflected, anteriorly arcuate; 

 columellar margin dilated, slightly detached; parietal margin 

 wanting. Length 24; breadth 14; length of body whorl 17 mm. 

 Average weight 9 grains; greatest weight 13 grains " (Gulick). 



