ACHATINELLA VIRIDANS. 125 



5. Shell yellow above (varying to olivaceous or brownish- 

 yellow) , green, dull olive or even chestnut below the periphery, 

 usually bandless, sometimes having one or several reddish- 

 brown bands. The columellar fold is not so strong as in the 

 preceding. (PI. 31, figs. 1, la, Palolo.) So far as I know, 

 this form does not occur in colonies of the chocolate-banded 

 forms. There is a large lot from Palolo in the Gulick collec- 

 tion, 92572 A. N. S. 



Waialae. Several lots collected by Gulick and others have 

 the patterns of figs. 2a, 3, 3a, 4&, c, d, not distinguishable 

 from Palolo shells. Another lot agrees with fig. 1. PL 31, 

 figs. 3, 3a are from the Palolo- Waialae ridge, collected by Mr. 

 Kuhns. 



Wailupe. Occurrence doubtful. 



Niu. Many-banded shells, pattern of fig. 3, collected by Gu- 

 lick. 



The locality "head of Kawailoa Gulch, Perkins," given by 

 Mr. Sykes, must be an error in labeling or determination. 



A. nivosa Newc. is universally admitted to be a scraped 

 abbreviata. The original figure is reproduced, pi. 29, fig. 6. 



A. dementina Pf r. has not been figured. It has been placed 

 in the synonymy of (Mreviata by Pfeiffer himself and by sub- 

 sequent authors. The description, which is not very good for 

 dbbreviata, here follows: " A. dementina. Shell imperforate, 

 dextral, ovate-conic, solid, nearly smooth, glossy; greenish- 

 brown, banded below the suture with buff. Spire regularly 

 conic, obtuse, suture chestnut, impressed-marginate, crenu- 

 lated. Whorls 6, a little swollen above, the last about equal 

 to two-fifths the total length. Aperture oblique, truncate ear- 

 shaped, white within; columellar fold above, moderate, white 

 or flesh-colored. Peristome unexpanded, the margins joined 

 by a callous, right margin somewhat straightened, thickened- 

 labiate within; columellar margin dilated, adnate. Length 

 19, cliam. 10, aperture 9% mm. long, 4% wide. Oahu, Frick 

 in Cuming coll.' (Pfr.) 



2. A. VIRIDANS Mighels. PI. 25, figs. 1 to 4 ; pi. 31, figs. 6, 6a. 

 11 'Shell dextral, elongate-conic, green with light streaks in- 



