36 HELIX-PAPUINA. 



rower, etc. ; from the latter species it is separated by the smaller 

 size and simple, not tuberculose, columella. 



H. PENNANTIANA Pfeiffer. PI. 10, figs. 81, 82. 



Narrowly umbilicated, orbiculate-conoid, acutely carinated, thin, 

 striatulate, irregularly and lightly malleated, unicolored fleshy, the 

 apex reddish. Whorls 5, a little convex, the last slightly descend- 

 ing in front, base nearly flat. Aperture very oblique, angulate- 

 lunar, white inside ; peristome roseate, broadly expanded, the basal 

 margin reflexed, columella short, nearly covering the umbilicus. 

 Alt. 20, greater diam. 37, lesser 30 mill. (Pfr.) 



Habitat unknown. 



H. pennantiana PFR., P. Z. S. 1845, p. 67 ; Conchyl. Cab. p. 432, 

 t. 151, f. 1, 2 ; Monogr. i, p. .325 RVE., Conch. Icon. f. 123. 



H. CARINATA Hombron & Jacquinot. PI. 12, figs. 31, 32, 33, 34. 



Narrowly umbilicate, depressed trochiform, irregularly striated, 

 tawny ; spire conoid, apex acute ; suture light, subcrenate. Whorls 

 5i, moderately convex, rapidly increasing, the last very acutely 

 carinated, the keel compressed and undulating. Aperture rhom- 

 boidal ; peristome broadly expanded and reflexed, wavy-calloused 

 inside; columella sloping, obsoletely bi-tuberculate. Alt. 18, diam. 

 43 mill. (Pfr., descr. from figures.} 



New Guinea. 



H. carinata HOMER. & JACQ,, Voy. Pol Sud, Zool. v, t. 7, f. 26- 

 29. ROSSEAU, text of same, p. 26. PFR., Mon. iv, p. 254. 



H. LEUCOTROPIS Pfeiffer.' 



Narrowly umbilicated, depressed, rather solid, closely striatulate, 

 somewhat shining, flesh-colored ; spire short conoidal ; suture white- 

 margined ; whorls 4, a little convex, the last having an acute, com- 

 pressed white carina, slightly descending in front, base more con- 

 vex. Aperture oblique, sub- rhombic-lunar, peristome thin, margins 

 converging, the upper narrowly expanded, basal reflexed, dilated at 

 the insertion. Alt. 8, greater diam. 18, lesser 15 mill. (Pfr.) 



Aru Islands. 



H. leucotropis PFR., P. Z. S. 1861, p. 22; Monogr. v. p. 407. 

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



An unfigured species, collected by Wallace. 



