176 OPEAS, EAST INDIES. 



The animal contained very large yellowish, eggs. 



Celebes : Kema, in the northern part. 



Stenogyra (Opeas) kemensis P. et F. SARASIN, Die Land- 

 Mollusken von Celebes, p. 145, pi. 26, f. 269 (shell), pi. 31, 

 f. 306 (radula). 



' ' This species is nearly related to 0. ternatana Bttg., but 

 much smaller and relatively decidedly more ventricose. ' ' It 

 has much the contour of Curvella. 



75. 0. TERNATANUM Boettger. PL 19, fig. 24. 



Similar to a gigantic Opeas clavulinum, but the shell is 

 more conic, the apex more acute. Shell shortly rimate, conic- 

 turrited, ventricose, thin, corneous-yellowish, slightly shin- 

 ing. Spire conic-turrite, the sides slightly convex, apex 

 acute. Whorls 7, a little convex, rather rapidly increasing, 

 separated by a linear, impressed suture ; arcuately striatulate, 

 more distinctly so at the sutures ; the last whorl rather tumid, 

 two-fifths the shell's length. Aperture perpendicular, nar- 

 rowly piriform; columella vertical, straightened; slightly 

 thickened or twisted in the middle; peristome simple, acute, 

 the margins joined by a callous, right margin arcuately 

 protracted, basal margin receding, columellar margin spread- 

 ing and slightly thickened. Length 12.5 to 13.5, diam. 5.25 

 to 5.5, alt. apert. 5.5, width 3 mm. Alt. to diam. as 1 : 2.42 ; 

 alt. aperture to alt. of shell as 1: 2.36 (Bttg.) 



Moluccas: Ternate, 



Opeas ternatanum BTTG., Bericht Senck. naturforsch. 

 Gesellsch. 1891, p. 273, pi. 3, f. 13. 



Similar large and obese forms are foreign to the Moluccas. 

 The very dull oily luster of the living shell agrees better 

 with Opeas than with Hapalus ; but by von Martens it is re- 

 ferred to the latter genus. 



76. 0. ACULEUS (Tapperone Canefri). 



Shell very similar to panayensis, but much narrower and 

 longer; whorls 10 or 10%, plano-convex, separated by a deep, 

 channelled suture, the last whorl shorter, a half longer than 

 the penultimate (T. C.) 



