36o FAUNA HAWAIIENSIS 



adnato, plica obliqua, parva, compressa munito, marginibus callo tenui junctis. Alt. 



7"5 ; tl'''"'n- 3"5 "■'''I- 

 Plate XI. fig. 26. 



A somewhat conic shell, in which, when adult, the columella plait becomes incon- 

 spicuous. One adult and three young specimens. 



Hab. Molokai (Perkins). 



(16) Leptachatina convexiuscuia, sp. nov. 



Testa turrita, elongata, gracilis, tenuiuscula, dextrorsa, brunneo-cornea, laevis, polita, 

 nitida, apice obtusulo ; anfr. 6^, convexi, turgiduli, ultimus -j^g^ 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. II. 



A shell of the group of L. exi/is Gulick, but with more inflated whorls, slightly 

 more tapering towards the apex, and the mouth not so drawn out to the right. Three 

 specimens. 



Hab. Oahu, Waiolani (Perkins). 



( 1 7) Leptachatina corneola Pfeiffer. 



Achatinella corneola Pfeiffer, P. Zool. Soc. London, 1845 [1846], p. 90. 

 Achatinella corneola Pfeiffer, Reeve, Conch. Icon. Achatinella, sp. 4. 



Hab. Oahu ? (Baldwin); Oahu, one young specimen (Hutchison). 



(18) Leptachatifia coruscans Hartman. 

 Leptachatina coruscans Hartman, P. Ac. Philad. 1888, p. 52, pi. i. fig. 16. 

 A variable shell in thickness and colouration. 



Hab. Molokai (Hartman); Kamalo (Baldwin); Kapanui, Kolamaula, and at 

 4000 ft. (Perkins). 



(19) Leptachatina costnlata Gulick. 



Achatinella costnlata Gulick, Ann. Lye. New York, vi. (1856), p. 177, pi. vi. 

 fig. 5 ; Sykes, P. Malac. Soc. London, iii. pi. xiv. fig. 4. 



Newcomb united this shell with L. semicostata 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. 



Hab. Oahu, Pupukea, Waimea, and Kawailoa (Gulick). 



