360 FAUNA HAWAIIENSIS 
adnato, plica obliqua, parva, compressa munito, marginibus callo tenui junctis. Alt. 
7°5; diam. 3°5 mill. 
Plate XI. fig. 26. 
A somewhat conic shell, in which, when adult, the columella plait becomes incon- 
spicuous. One adult and three young specimens. 
Has. Molokai (Perkins). 
(16) Leptachatina convexiuscula, sp. nov. 
Testa turrita, elongata, gracilis, tenuiuscula, dextrorsa, brunneo-cornea, laevis, polita, 
nitida, apice obtusulo; anfr. 63, convexi, turgiduli, ultimus 5%; altitudinis testae aequans ; 
sutura bene impressa; apertura pyriformis, margine columellari sinuato, plica minima 
munito, marginibus callo tenuissimo junctis. Alt. 8; diam. 2°8 mill. 
Plate XI. fig. 11. 
A shell of the group of Z. exz/és Gulick, but with more inflated whorls, slightly 
more tapering towards the apex, and the mouth not so drawn out to the right. Three 
specimens. 
Has. Oahu, Waiolani (Perkins). 
(17) Leptachatina corneola Pfeiffer. 
Achatinella corneola Pfeiffer, P. Zool. Soc. London, 1845 [1846], p. 99. 
Achatinella corneola Pfeiffer, Reeve, Conch. Icon. Ackhkatinella, sp. 4. 
Has. Oahu ? (Baldwin); Oahu, one young specimen (Hutchison). 
(18) Leptachatina coruscans Hartman. 
Leptachatina coruscans Hartman, P. Ac. Philad. 1888, p. 52, pl. 1. fig. 16. 
A variable shell in thickness and colouration. 
Has. Molokai (Hartman); Kamalo (Baldwin); Kapanui, Kolamaula, and at 
4000 ft. (Perkins). 
(19) Leptachatina costulata Gulick. 
Achatinella costulata Gulick, Ann. Lyc. New York, vi. (1856), p. 177, pl. v1. 
fig. 5; Sykes, P. Malac. Soc. London, mu. pl. xiv. fig. 4. 
Newcomb united this shell with Z. seszcostata Pfeiffer, but Gulick’s type is much 
more slender than that species, the mouth is of a different shape, and other minor 
differences exist, all leading me to regard it as a good species. 
Has. Oahu, Pupukea, Waimea, and Kawailoa (Gulick). 
