252 ACHATINELLA CURTA. 



whorls white with a pale ochraceous zone below the suture. 

 While very glossy, it is more roughly striate than livida or 

 recta. 



Others of the original lot, (pi. 44, figs. 2, 3, 4, coll. by Gulick) , 

 are darker or lighter than the type medal bronze or oil green 

 to amber yellow of Ridgway's Color Standards. The sutural 

 border may be colored like the rest of the whorl, or there may 

 be a blackish chestnut band; but there is no light zone or 

 band below the suture. One specimen has a pair of chestnut 

 bands near the periphery. 



While close to recta, it may be practicable to distinguish this 

 form as a local race. I do not know that it has been found 

 since Gulick 's time. 



25. A. CURTA Newcomb. Plates 45 and 46. 



"Shell conical, sinistral, polished; whorls 5, rounded, mar- 

 gined above, the last very ventricose ; aperture ovate ; lip 

 simple, slightly thickened within ; columella short, with an 

 abrupt callous termination ; suture but little impressed ; color 

 yellow or chestnut, plain or with a black sutural band, rarely 

 with two or more on the last two whorls; columella white or 

 light brown. The rounded whorls and obese appearance of 

 this shell are strikingly characteristic. It is a rare species 

 and extremely limited in its range. Length 12, diam. 8 twen- 

 tieths of an inch' (Newc.). 



Oahu: Waialua (Newcomb). Ahonui to Kawailoa, and 

 across the range in Laie. 



Achatinella curta NEWCOMB, P. Z. S. 1853, p. 144, pi. 23, 

 f . 43 ; Ann. Lye. N. H. of N. Y. vi, 329. PPR., Monogr. iv, 

 540; vi, 176. Achatinella rhodoraphe E. A. SMITH, P. Z. S. 

 1873, p. 74, pi. 9, f. 10. GULICK, Evolution, Racial and 

 Habitudinal, pi. 41, pi. 2, f. 6 (Wahiawa). Achatinella un- 

 dulata NEWCOMB, Proc. Boston Soc. N. H. v, p. 218, Sept., 

 1855; American Journal of Conch, ii, p. 216, pi. 13, f. 15. 

 PPR., P. Z. S. 1855, p. 208 (Feb. 5, 1856) ; Monogr. iv, 540. 

 Achatinella delta GULICK, Ann. Lye. vi, p. 231, pi. 8, f. 50, 

 Feb., 1858; Evolution, Racial and Habitudinal, p. 41, pi. 2, 

 f. 5 (Wahiawa). 



