/ 



52 Original Descriptions of Achatinella. 



conspicuously encircled round the middle with two close black 

 lines. 



Hab. Manoa to Nuuanu. 



Dr. Cooke saj'S, from a comparison of the types, that this is 

 only a banded form of A. produda. 



6i. Achatinella johnsoni Newcomb. 



A. johnsoni Newc. V. Zool. Soc. London, 1.S53, p. 147, pi. xxiii, fig. 50. 



Shell dextral, conically elongate ; whorls 7, slightly rounded, 

 superiorly indistincflly margined ; suture rather deep ; aperture 

 subov^ate ; columella with a strong plication, 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. L,ong. 18/20. 

 lat. 9/20 poll. 



The following form an allied group: A. produda, hybrida, 

 aplustre, venulata and johnsoni. 



Hab. Koolau. — Newc. 



Dr. Cooke found the type to be a white shell with dark bands, 

 a banded variety of A. produda Reeve. Dr. Newcomb dedicated 

 this species to the Rev. Mr. Johnson of Kauai. 



6a. Achatinella aplustre Newcomb. 



A. aplustre Newc. P. Zool. Soc. London, 1853, p. 147, pi. xxiii, fig. 51. 



Shell conical, dextral ; whorls 7, rounded ; suture moderately 

 impressed, simple ; aperture semi-ovate ; lip thin, with a callus, 

 terminating in a twisted plait, bluish white tipped with brown; 

 three first spiral turns white, the others with a broad central pink 

 band, margined by two deep black bands ; on the last whorl, 

 superiorly and inferiorly, is a broad bright green band. Long, i, 

 lat. 10/20 poll. 



The gaudy coloring of this species alone separates it from the 

 A. johnso7ii Nob. It belongs to the same sedlions with A . produda 

 Reeve, which may be taken as the type of a group of species num- 

 bering some half-a-dozen, and which require still further additions 

 to render it complete. — Newc. 



Hab. Koolau. — Newc. Manoa. 



Mr. Baldwin places this with A. johnsoni Newc, and it is 

 without doubt the same shell, with more of the green color. It 



