I. 



Section ACHATINBLI/A Swainson. 



(Syn. APEX Von Martens.) 



/. Bcginuijig at the souih-castcni cud oj the island oj Oahii. 

 I. Achatinella cestus Newcomb. 



A. cestus Xewc. P. Zool. Soc. [,ondon, 1S53, p. 132; pi. xxii, fig. S. 



Shell solid, ventricose, sinistral or dextral, pointed at the 

 summit; whorls 6. rounded, corded above, last one tumid ; aper- 

 ture subovate : columella short, strough' tuberculate ; lip slightly 

 expanded, thickened within ; colour of tip black, second and third 

 whorls white, three last white, yellowish or black or mixed, with 

 a white cincture traversing the sutures and cutting the body whorl 

 below the centre, with or without a broader band below, some- 

 times with blotches or tessellations of black and white or longi- 

 tudinal undulating lines of the same colors ; columella chestnut ; lip 

 same color, interrupted with white. Long. 14/20, lat. 8/20 poll.* 



A fine shell, approaching A. siniitans \^simiilans\ of Reeve, 

 which it resembles in form, but from which it differs striking!}" 

 in its markings. — Newc. 



Hab. Palolo. — Newx. Niu and Wailupe. 

 This shell does not seem to be related to any other of this 

 secftion. It is onlv found in the eastern vallevs of Oahu. 



LORATA GROUP. 

 2. Achatinella lorata Ferussac. 



Helix \Cochlogeiia\ lorala Fer. Prodrome. 1822, p. 60. 



Testa flextrorsa, ovato-conica, vertice acuto, nitida, striata, alba, colore 

 epidennali ; epidermide unicolore vel fasciis ornato ; anfractibiis 5 1-2, tequa- 

 liter cresceiitibus ; sutiiris niarginatis ; apertura ovata, alba ; coKimclla 



*One pollex equals one inch. (13) 



