LEPTACHATINA, GROUP D. 17 



19. L. SUBULA (Gulick). PI. 9, fig. 14. 



"Shell dextral, imperf orate, elongate, thin, shining, trans- 

 lucent, dark corneous, very finely striated ; apex obtuse, whit- 

 ish; spire turrited; suture simple, impressed; whorls 9, con- 

 vex; columellar fold central, white; aperture sinuately lun- 

 ate ; peristome simple ; with dextral margin unreflected, arcu- 

 ate; columellar margin dilated, white, adnate; parietal mar- 

 gin wanting. Length 11.5, diam. 4.3, length of body whorl 

 6 mm." (Gul.) 



Oahu: Palolo (Gul.); Waialae (Spalding). 



Achatinella subula GULICK, Ann. Lye. N. Y., vi, 1856, p. 

 191, pi. 6, fig. 19. Achatinella gracilis NEWCOMB, Ann. Lye. 

 N. Y., 1858, p. 321. Achatinella (Leptachatina) elevata 

 PFEIFFER, Mon. Hel. Viv., vi, p. 184. Leptachatina subula 

 SYKES, Proc. Malac. Soc. London, iii, pi. 14, fig. 16. Lepta- 

 chatina gracilis SYKES, Fauna Haw., ii, Moll., p. 363. 



The type specimen of L. subula was carefully compared 

 with specimens of L. gracilis, with the following differences: 

 the spire of the former is more, attenuate, almost slightly con- 

 cave, the whorls are more convex ; the shell is thinner, darker 

 colored and unicolorous; the striae are more pronounced; 

 the apex is more acute and less rounded. Mr. Sykes' figure 

 of the type is copied in fig. 14. 



20. L. TEREBRALIS (Gulick). PI. 9, fig. 15. 



"Shell dextral, imperf orate, turreted, shining, dark brown, 

 corneous, very finely striated; apex obtuse, white; spire tur- 

 reted; suture simple, slightly impressed, whorls iy 2 , flatly 

 convex ; columella white, moderately plaited ; aperture lun- 

 ate; peristome whitish; with dextral margin unreflected, 

 somewhat thickened; columellar margin dilated; adnate; 

 parietal margin thin. Long. 11, diam .4.5 mm. Body 

 whorl 6 mm. long." (Gul.) 



"Var. b. With spire shortened, concavely conical; body 

 whorl rounded." (Gul.) 



Oahu: Kawailoa (Gulick); Waianae Mts., below Kaala 

 (Perkins). 



