MOLLUSC A 383 



Its most noteworthy features are the very elongately pyramidal shape, flattened 

 whorls, and the two inconspicuous pHcae on the columella, the upper one being more 

 deeply seated than the lower. 



Hab. Kauai, Kaholuamano at 4000 feet (Perkins). 



(13) Tornatellina trochoides sp. nov. 



Testa profunde perforata, cornea, pyramidalis, pellucida, fere laevis ; spira conoidea, 

 apice acutiusculo ; anfr. 7 — 7^, regulariter lenteque accrescentes, planiusculi, ultimus 

 ad peripheriam subcarinatus, sutura impressa ; apertura quadrato-ovata, superne angu- 

 lata, laminam conspicuam validam in pariete gerens ; columella brunnea, incrassata, 

 plicis duabus munita. Alt. 4, lat. 2 mm. 



Plate XI. fig. 31. 



Closely related, apparently, to T. tnubilicata Ancey ; but differs from it in the 

 relative proportions of height and breadth. 



Hab. Lanai Mountains (Perkins). 



(14) Tornatellina umbilical a Ancey. 



Auriculella ttmbilicata Ancey, Bull. Soc. Malac. France, vi. (1889), p. 232. 

 Tornatellina ttmbilicata Ancey, Mem. Soc. Zool. France, v. p. 721. 



Hab. Maui, Lahaina (Ancey). 



Fam. STENOGYRIDAE. 

 Opeas Albers. 



Opeas K\h&rs, Die Heliceen, 1850, p. 175; Martens, Die Heliceen, Ed. 2, i860, 

 p. 265 (type Buliniiis goodalli Miller). 



( I ) Opeas j mucus Gould. 



B !t I iums junceiis Go\Ad, P. Boston Soc. 11. (1847), p. 191 ; U. S. Explor. Exped. 



Moll. pi. VII. fig. 87. 

 Hab. Hawaiian Islands (Gould); all the islands (Baldwin). — Oahu, Waianae 

 Mts. (Perkins). 



F. H. 11. so 



