200 



ACHATINELLA FULGENS. 



pale rose, high, twisted; aperture oblique, reversed auriform; 

 peristome unexpanded, acute, somewhat labiate within; colu- 

 mellar margin slightly dilated, adnate. Length 24, diam. 12 

 mm. Inhabits the Sandwich Islands, Dr. Frick, in Cuming 

 coll" (Pfr.). 



This is an albino form. 



Achatinella plumata Gulick. ' ' Shell sinistral, imperforate, 

 ovate-conic, solid, shining, striated, cinereous, with oblique 

 brown streaks; apex subacute; spire conic, with outlines 

 slightly convex; suture marginate, moderately impressed, 

 white; whorls 6y 2 , somewhat convex; columellar fold central, 

 white, strong; aperture somewhat oblique, truncately auri- 

 form; peristome subacute, well thickened within, with colu- 

 mellar margin dilated, adnate; parietal margin wanting. 

 Length 23 mm., breadth 12.2, length of body-whorl 16, length 

 of aperture 11 mm. Average weight 8.5 grains. 



' ' Station : on the leaves and branches of trees. Habitat : 

 Niu, Oahu, J. T. G.!" (Gulick). 



"Remarks: a neat species, differing from A. phceozona in 

 its smaller size, more conic spire, and in the streaked arrange- 

 ment of its colors. The typical specimens are much thicker 

 and heavier than A. buddii Newc., and it never has the black 

 tip of that species. We have seen but one dextral specimen, 

 which has been mentioned under var. s." (Gulick). 



Mr. Gulick characterizes 41 color-varieties, grouped under 

 five sections designated by Greek letters. 



These sections are as follows: (1) typical, vars. b to k. 



(2) "Smaller and more elongately ovate. Length 19^, 

 breadth 10% mm. Habitat Wailupe, Oahu." Vars. I to g. 



(3) "Of full size, but thinner, than the typical varieties, 

 with the first three whorls usually white; passes into A. 

 fulgens Newc., which is found in the same locality. Habitat, 

 Waialae, Oahu; vars. r, s and v are sometimes found in 

 Palolo." Vars. r to x. 



(4) "Rather thin, with lip acute and scarcely thickened 

 within ; pass into A. buddi Newc., found in the same locality. 

 Average weight 5.3 grains. Habitat, Palolo, Oahu." Vars. 

 y, z, aa to ii. 



(5) "With spire more convex and colors less streaked; pass 

 into A. ph&ozona vars. i to o. Habitat Kailua, Oahu." 

 Vars. jj to pp. 



It has not been thought desirable to occupy space here 



