250 ACHATINELLA LIVIDA. 



Sutural band only, light in 0, dark in 1 shell. 



No bands, 3 shells. See pi. 53, figs. 17 to 21. 



Helemano. A specimen taken by Gulick has three honey 

 yellow bands. 



Wahiawa. A series collected by Dr. Cooke has three black- 

 ish chestnut bands on a white or yellow ground, or white 

 above, yellow below the periphery, both dextral and sinistral 

 (pi. 53, fig. 16). Also the form with honey yellow bands, 

 all sinistral. 



A. glauca Gulick, pi. 44, figs. 5, 6, 7, seems to me to be 

 merely a dark form of recta, hardly worth a name, differing 

 only in the olive lake ground-color. There must however 

 have been a considerable colony of similar shells as Gulick 

 secured a large set. The description follows. * ' Shell sinistral, 

 rarely dextral, imperforate, acuminately ovate, solid, shining, 

 striated, fawn or lead-colored with two black bands, one en- 

 tering the aperture ; apex somewhat acute, white ; spire conic 

 with slightly convex outlines; suture marginate, moderately 

 impressed ; whorls 6, convex ; columellar fold central, white 

 or pale pink, moderately developed ; aperture sinuately oval, 

 white within ; peristome thickened within ; with external mar- 

 gin unreflected, arcuate, acute, bordered with brown; colu- 

 mellar margin dilated, adnate ; parietal margin wanting. 

 Length 17, breadth 9 mm. ; length of body-whorl ll 1 /^ mm. 

 Average weight 3.9 grains. 



"Kawailoa, on trees. J. T. G. 



"Var. 6. With a third brown sutural line. 



"Var. c. With but one black spiral band passing above the 

 suture. 



"Var. d. With a white band encircling the base between 

 the two black bands ; very rare. 



"This species bears the same relation to A. livida Swains, 

 that A. recta Newc. bears to A. casta Newc.' (Gulick}. 



Fig. 5 represents Gulick 's type specimen, no. 51 Boston 

 Society. A large set from the same lot is no. 92,284 A. N. S. P 

 The shell differs from A. livida by having two nearly black 

 spiral bands and usually no distinct subsutural band char- 

 acters in which it agrees with var. recta, from which it differs 

 only in the ground-color. The color of the suture is variable, 

 some shells having an inconspicuous dusky or yellowish 

 border below the suture. One specimen has a pair of wider, 



