LEPTACHATINA, GROUP F. 35 



columellar fold is not very strong and is very oblique. The 

 other shells in the same tray agree with typical specimens of 

 L. ovata from West Maui; and these last agree with New- 

 comb's figure. 



44. L. VITBEOLA (Gulick). PI. 2, figs. 28, 29. 



' ' Shell dextral, imperforate, elongately ovate, thin, shining, 

 pellucid, vitreous, microscopically finely striated ; apex rather 

 obtuse; spire convexly conic; suture simple, moderately im- 

 pressed ; whorls nearly 7, somewhat convex ; columella lightly 

 plaited deep within the aperture; aperture pyriform; peris- 

 tome simple; with dextral margin unreflected, arcuate; colu- 

 mellar margin narrow, adnate; parietal margin wanting. 

 Length 8.0, diam. 3.5 mm. ; body whorl 4.5 mm. long " (Gul.). 



West Maui (Baldwin) : Maunahoomaha (Thaanum, Cooke) ; 

 Honokohau Gulch, Honokowai Gulch, Akau-ka-imu (Thaa- 

 num) . 



Achatinella vitreola GUL., Ann. Lye. N. Y., vi, 1856, p. 

 194, pi. 6, fig. 23. Achatinella parvula GUL., Ann. Lye. N. Y., 

 vi. 1856, p. 195, pi. 6, fig. 24. Achatinella grana NEWC., 

 Ann. Lye. N. Y., vi, 1858, p. 330; Proc. Zool. Soc. London, 

 1853, p. 146, pi. 33, fig. IG.Leptachatina parvula SYKES, 

 Proc. Mai. Soc. London, iii, pi. 14, fig. 13. Leptachatina 

 vitreola SYKES, Fauna Haw., ii, 1900, p. 372. 



A single shell collected in West Maui agrees closely with 

 the type in the collection of the Boston Society, except that 

 it is slightly broader, measuring, length 8.0, diam. 3.8, length 

 of ap. 3.4 mm. 



I cannot follow Newcomb in considering this species equal 

 to L. grana Newc. The two species are entirely distinct. 



Figs. 28, 29 represent a cotype in coll. A. N. S. P. ; the fig- 

 ure below fig. 28 is a copy of Mr. Sykes's figure of the type 

 of L. parvula, see below. 



I follow Mr. Sykes in including L. parvula with this 

 species. It differs somewhat from the typical forms of 

 L. vitreola, being considerably smaller and broader in pro- 

 portion to its length. It might properly to considered a 

 variety. 



