54 LEPTACHATINA, GROUP K. 



68. L. VENTULUS (Ferussac). PI. 5, figs. 81, 82; pi. 11, fig. 4, 



"Shell dextral, minute, ovately elongate, furnished with 

 marked stria; epidermis brown; whorls 5%, slightly convex, 

 sutures distinct; aperture small, semilunate; lip thickened 

 within; umbilical cleft not distinct. Length 5.5, diam. 2.5 

 lignes." (12.4x6.2 mm.) (Per.) 



Helix (Helicteres) ventulus FERUSSAC, Voy. Freycinet. 

 Zool. p. 481. Bulimus ventulus PFR., Symb., 1841, p. 86. 

 Achatinella ventulus NEWCOMB, Ann. Lye. N. Y., vi, 1858, 

 p. 306 (animal) . Amastra ventulus PEASE, P. Z. S. London, 

 1869, p. 649. SYKES, Fauna Haw., ii, p. 347. Achatinella 

 melampoides PFEIFFER, P. Z. S. London, 1851, p. 262 ; Martini 

 und Chemnitz, Conch. Cab., Achatinella, pi. 67, figs. 8, 9. 

 Achatinella accincta GOULD, U. S. Exp. Exp., Moll., pi. vii., 

 fig. 97. Not Achatinella ventulus REEVE, Conch. Icon., Acha- 

 tinella, no. 31 (= A. textilis Fer.). PFEIFFER, Conch. Cab... 

 Achatinella, pi. 67, figs. 12, 13 (= = A. textilis Fer.). 



Oahu : Nuuanu to Palolo (Baldwin); Pauoa Valley and 

 ridges of Nuuanu (Perkins) ; Palolo, Tantalus, Konahuanui, 

 Nuuanu, Kalihi (Gooke) ; Kaliuwaa. (Kuhns, Spalding) ; 

 Punaluu (Spalding) ; Waialae (Spalding). 



In young specimens the embryonic whorls are encircled by 

 a white band. This band continues on the lower whorls but 

 is usually absent or very, faintly represented in the adult 

 shells. There are, usually, numerous hydrophanous grayish- 

 buff, longitudinal and transverse lines. In some localities 

 all the adult shells are this uniform grayish-buff. The nor- 

 mal color is a rich, reddish brown with a yellowish umbilical 

 zone. The aperture is reddish brown, except in shells having 

 the hydrophanous covering, when it has a purplish tinge. 

 The lip is white, bordered on the outside with yellowish 

 white or light reddish brown. The columellar fold is rather 

 strong, white. The shells are usually irregularly finely 

 striate ; in a few specimens from the eastern side of Nuuanu, 

 the lower whorl is malleate. The species is never abundant, 

 though widely distributed over the whole of the main moun- 

 tain range. A single specimen from Waialae has an ivory 

 white spire and a dark reddish brown base. A rather abun- 



