42 HELIX-PAPUINA. 



H. (Papuina) cerope E. A. SMITH, Ann. Mag. N. H. (6th ser.), 

 vii, p. 452, May, 1891. 



This species somewhat resembles H. aurora Pfr. in form, but is a 

 trifle higher in proportion to the diameter. It also differs in being 

 a smaller form, and in having a larger umbilicus. The young of 

 this species is evidently sharply keeled at the middle, but in the 

 adult shell the keel gradually disappears toward the aperture. 

 (Smith.*) 



H. NOVOGUINEENSIS Pfeiffer. PI. 5, figs. 89, 90, 91, 92. 



Imperforate or narrowly perforate; globose-conical, solid, the 

 spire conical, composed of 5i, slightly convex whorls ; apex acute, 

 pale ; last whorl rounded at the periphery, slightly descending in 

 front. Surface shining, striatulate, covered with a thin corneous 

 epidermis, white under the epidermis, variously banded with chesnut, 

 and with an opaque-white border below the suture, the base mostly 

 chestnut. Aperture oblique, wide ; lip white, broadly expanded 

 throughout, reflexed ; columellar margin wide, dilated over the um- 

 bilicus, usually closing it, and thickened within by a deposit of callus 

 with an irregularly nodulous edge, more or less truncated below. 



Alt. 26, greater diam. 41, lesser 34 mill. 



Northern New Guinea ; Island of Sorong. 



H. novoguineensis PFR., P. Z. S. 1862, p. 270 ; Novit. Conch, p. 

 210, t. 56, f. 1, 2, 3, 4 ; Mouogr. v, p. 276. DOHRN, Contin. Conch. 

 Cab. p. 567, t. 168, f. 3, 4. TAPPARONE CANEFRI, Ann. Mus. Civ. 

 Genov. xix p. 146, t. 6, f. 8 ; t. 9, f. 3, 20 (Anatomy). Papuina novce- 

 guineensis WALLACE, P. Z. S. 1865, p. 411. H. triumplialisf 

 TAPP. CAN. I c. vi, 1874, p. 562 ; ix, 1876, p. 289.? H. trium- 

 phalis REEVE, Conch. Icon. f. 1421, December, 1854. H. mysolen- 

 sis PFR., P. Z. S. 1862, p. 270 ; Novit. Conch, p. 206, t. 54, f. 7, 8 ; 

 Monogr. v, p. 336. TAPP. CAN. /. c. 2d. Ser. iv, p. 138, 1887. 

 Papuina mysolensis WALLACE, P. Z. S. 1865, p. 411. 



A large, globose-conic shell, variously banded with chestnut, and 

 having a white sutural border. The following seem to be merely 

 varieties ; c/. Dohrn, I. c. 



Var. TRIUMPHALIS Reeve. PI. 17, fig. 30. 



Imperforate ; broadly trifasciate with chestnut. 

 Reeve's name has priority over that of Pfeiffer, and I would adopt 

 it for the species if the identity were established by an actual exami- 



