158 ACHATINELLA BULIMOIDES. 



of the nuclear whorls in a manner quite different f roin what 

 is seen in the bands of A. obliqua and other species of this 

 group ; (Gulick) . 



This small form is like mistura in having a dark summit, 

 but differs by the white sutural line running to the apex and 

 the color of the shell. I have been told that spadicea occurs 

 below the falls in Kaliuwaa, but I suspect that the shells from 

 there are mist lira. Spadicea is known by very few specimens. 

 There is one, the type, in coll. Boston Society of Natural His- 

 tory, described above and figured in pi. 33, fig. 13, and two 

 from it-he Gulick collection in A. N. S. P., one of which is fig- 

 ured, pi. 33, fig. 13(/. Also two shells from the same source in 

 coll. Bishop Museum. I do not remember seeing specimens in 

 other Hawaiian collections, and very likely the race is now 

 extinct. It has resemblance to some dark forms of A. rosea in 

 surface gloss and sutural border. 



9c. A. BULIMOIDES OBLiQUA Gulick. PI. 28, figs. 8 to 9a. 



" Shell sinistral, subperf orate, ovate, obliquely truncated 

 at the base, solid, shining, striated ; o'f ashy lead-color, with a 

 broad whitf band beneath the suture. Apex obtuse, of a yel- 

 lowish white color ; spire convexly conical ; whorls 6, subconvex, 

 the last large. Columellar fold central, white, strong. Aper- 

 ture oblique, truncately auriform, nearly white within. Peri- 

 stome 'white, thickened within; with external margin some- 

 what reflected, arcuate; columellar margin forming an ob- 

 tuse, sinuous ridge with a small umbilical cleft behind it ; 

 parietal margin thin. Length 23, diam. 13 mm. Average 

 weight 9 grains ' (Gulick). 



Kahana, on trees (J. T. Gulick). 



Achatinella obliqua GULICK, Ann. Lye. N. H. of N. Y., vi, 

 p. 245, pi. 8, f . 63, Feb., 1858 ; Evolution Racial and Habitu- 

 dinal, p. 41, pi. 3, f. 16/i-20fo. Achatinella oomorplia GULICK, 

 Ann. Lye., vi, p. 246, pi. 8, f. 64. 



Is allied to A. ovata Newc., with which it is associated 

 geographically, but differs from it by its broader form and! 

 white lip. The dark coloring of the body-whorl abruptly ter- 

 minates near the external margin of the peristome, leaving a 



