LEPTACHATINA, GROUP L. 



united by a rather thick, white parietal callus. Length 10.5, 

 diam. 4.7, length of apert. 4.5 mm. 



Lanai (Thaanum). 



There are but four specimens of this species so far re- 

 ported. All agree very closely, (though in one specimen the 

 last two whorls are slightly pathologic) the most distinctive 

 character being the costate neanic whorls. This species is 

 somewhat related to L. perkinsi Sykes. It is, however, nar- 

 rower in proportion to its length and has an additional whorl, 

 and besides I have been unable to find a single specimen of 

 L. perkinsi with costate neanic whorls. 



L. Group of L. succincta. 



73. L. CORNEOLA (Pfeiffer). 



' ' Shell ovately oblong, very lightly striate, pellucid, glossy, 

 corneous, spire turrited-conical, apex somewhat obtuse ; suture 

 subsimple; whorls 8, somewhat flat, the last nearly equal to 

 % of the length; columella strongly arcuate, furnished with 

 an acute, prominent, white, flattened tooth; aperture irregu- 

 larly oval; lip slightly thickened within with a thin, glossy, 

 white callus. Length 15.0, diam. 7.0, length of apert. 6, diam. 

 3i/ 2 mm." (Pfeiffer). 



Oahu? (Baldwin) : one young specimen (Hutchison). 



Achatinella corneola PFEIFFER, P. Z. S. London, 1845, 

 (1846), p. 90. REEVE, Conch. Icon., Acliatinella, -sp. 4. 

 PFEIFFER, Mon. Hel. Viv., ii, p. 241 ; iii, p. 466. Achatinella 

 (Leptachatina) corneola PFEIFFER, Mon. Hel. Viv., iv, p. 564; 

 vi, p. 183 ; viii, p. 245. Labiella corneola PEASE, P. Z. S. 

 London, 1869, p. 651. Lcptachatina corneola SYKES, Fauna 

 Haw., 1900, p. 360. 



L. corneola appears to be related to the larger Leptacha- 

 tin<z from the western portion of Oahu. The single specimen 

 in the British Museum is very glossy and larger than the other 

 species (L. resinula Gul., and L. succincta Newc.) to which 

 it is somewhat related. 



74. L. MARGIN ATA ( Gullck) . PI. 11, fig. 8. 



"Shell dextral, imperf orate, ovate, shining, semipellucid, 



