ACHATINELLA STEWARTEE. 211 



the middle with two close black lines. Hab. ? The form 



of this shell is peculiar, and there is something equally char- 

 acteristic in the marking' (Reeve). 



Our pi. 38, fig. 10 is practically identical with Reeve's 

 figure of bilineata. 



Achatinella venulata (pi. 30, figs. 48, 48a, photographic 

 reproductions of the original figures). "Shell dextral, elon- 

 gately conic; whorls 7, convex, slightly margined above; su- 

 ture well-impressed; aperture subovate; lip simple, thick- 

 ened within ; columella strongly plicate, twisted, of a pinkish 

 hue ; color of shell white, or pinkish white, with longitudinal 

 veins of green or olive-green epidermal matter. Length 21/20, 

 diam. 10/20 inch. 



'Var. a. Sinistral, with a deep black sutural band. 



"Kolau, Oahu.' (Newcomb). 



This is an artifact so far as color is concerned, produced 

 by scraping A. producta; var. a is a scraped A. stewartii. 

 The following three forms, johnsoni, aplustre and hybrida are 

 also manufactured patterns. A. venulata and hybrida were 

 from Mt. Tantalus shells, perhaps johnsoni and aplustre also. 

 The locality ' ' Kolau, ' ' given for the whole series, was a further 

 deception on the part of the shell-artist who imposed the 

 frauds upon Doctor Newcomb. 



Achatinella johnsoni (pi. 30, fig. 50, reproduction of ori- 

 ginal figure). "Shell dextral, conically elongate; whorls 7, 

 slightly rounded, superiorly indistinctly margined ; suture 

 rather deep ; aperture subovate ; columella with a strong pli- 

 cation, pink, margined with black; color of shell white or 

 pinkish, banded with two or more narrow black lines, one or 

 two of which are central, one sutural, and one usually 

 broader, inferiorly on the last whorl. Length 18/20, diam. 

 9/20 inch. 



"The following form an allied group: A. producta, hy- 

 brida, aplustre, venulata and johnsoni. This species is dedi- 

 cated to the Rev. Mr. Johnson of Kawai, whose assistance in 

 my researches I most thankfully acknowledge' (Newcomb). 



A. johnsoni and A. aplustre have somewhat the shape of 

 A. s. producta, and may have been manufactured from a 

 rather unusual form of that from Mt. Tantalus, such as pi. 38, 

 fig. 13 ; but the presence of both sutural and columellar dark 



