24 PABTULINA, MOLOKAI. 



SPECIES OF MOLOKAI. 

 Key to Achatinellinas of Molokai. 



NOTE. Yellow forms plain or with zigzag black stripes should 

 be looked for in Laminella r Vol. XXI, p. 345. 

 A. Shell elongate, dull, with distinct or strong spiral sculpture, 

 the columellar fold weak or wanting. 



Newcombia, p. 1. 



A 1 . Shell very glossy and smooth, porcelain-like, coloration 

 light and in bands, never longitudinal stripes or flames; 

 columellar fold strong. 

 a. Shell dextral. 



b. Spire long; shell white, uniform or with gray or 



light brown streaks, generally having a subperi- 

 pheral dark band or several bands; length 16-19 

 mm. mighelsiana, no. 45. 



b l . Spire shorter, concavely conic, the last whorl bulg- 

 ing; yellow, usually with a chocolate subsutural 

 line or band; length 13-18 mm. polita, no. 44. 

 6 2 . Spire straightly conic, last whorl not bulging, color 

 various. bella, no. 42. 



a 1 . Shell sinistral, obesely ovate-conic, yellow, the embry- 

 onic whorls white with a dark band. 



subpolita, no. 43. 



A 1 . Shell ovate-conic or pyramidal, showing moderate sculpture 

 under a lens; last embryonic whorl usually variegated; 

 columellar fold well developed. 

 6. Embryonic whorls having a dark spiral band. 



virgulata, no. 8. 



b\ Embryonic whorls having vertical or protractive stripes, 

 or sometimes plain. 



c. Ovate-conic, rather large, length usually 23 to 



26 mm. 



d. Surface dull, fine spiral sculpture being well 

 developed; banded or streaked. 



rufa, no. 10; tessellata, no. 9. 

 d l . Surface glossy; striped or plain. 



proximo,, no. 11. 



