ACHATINELLA PULGENS. 199 



from Kailua below Mt. Olympus. It must be admitted, how- 

 ever, that there is also a close relationship to A. stewartii. 

 Probably ampla came from somewhere in Kailua, NewcomVs 

 locality being in a rough way correct. 



The last whorl is straw yellow, usually streaked and more 

 or less suffused with green; sometimes with some obscurely 

 traced green bands; the early whorls whitish or faintly flesh 

 tinted. The suture is narrowly margined with chestnut. 

 There is often a blackish chestnut crescent at the columella. 

 In Newcomb's type and one other specimen the whole base 

 is streaked with chestnut. 



Length 19.5, diam. 12.6, aperture 9.5 mm. ; 6*4 whorls. 



Length 20.1, diam. 12.5, aperture 10.5 mm. ; 6 whorls. 



The original descriptions of forms based upon various muta- 

 tions of A. fulgens are reprinted below. We have examined 

 the types of all but crassidentata, augusta and liliacea, and 

 have seen part of the original lot of augusta. 



A. crassidentata Pfeiffer. PI. 30, fig. 23, reproduction of 

 original figure. " Shell imperf orate, sinistral, rather solid, 

 striatulate, little shining; white, ornamented with a few buff 

 bands, sometimes having the base greenish-buff. Spire conic, 

 the apex rather obtuse, suture margined ; whorls 5%, a little 

 convex, the last about three-sevenths the length, rounded at 

 the base. Aperture diagonal, sinuately semioval; columellar 

 fold superior, very thick, tooth-shaped ; peristome simple, the 

 outer margin acute, lightly arcuate ; columellar margin short, 

 narrow. Length 20, diam. 11 mm. ; aperture 10 mm. long, 5 

 wide. Inhabits the Sandwich Islands, Frick, in Mus. Cum- 

 ing" (P/r.). 



This pattern has been found by Mr. Spalding in Wailupe. 

 The bands are cuticular, not homologous with those of tri- 

 lineata, which are differently located, and dye the prismatic 

 layer of the shell. 



"A. liliacea Pfr. Shell imperf orate, sinistral, ovate-conic, 

 rather solid, lightly striate, glossy, white ; spire a little con- 

 vexly conic, apex subacute ; suture narrowly margined ; whorls 

 6, scarcely convex, the last a little convex, sometimes sub- 

 angular at the periphery, the base sack-like ; columellar fold 



