72 THE LAND MOLLUSCAN FAUNA OF BRITISH NEW GUINEA, 



figs. 1-12, pi. 7; Reeve, Conch. Icon. vn. pi. 89, fig. 482a, 

 b, c, d; Tryon, Man. Conch. (2), n. pi. 20, figs. 88-95; &o., &c. 



Descriptions. — Linne, Syst. Nat. ed. 10, p. 771 ; Mon. 

 Hel. Yiv. i. p. 53; Voy. "Astrolable," Zool. n. p. 140; Voy. 

 " Uranie et Physicienne," Zool. p. 471 ; Voy. "Coquille," Zool. II. 

 p. 306; Ostas. Zool. II., p. 193; Lamarck, An. s. Vert. vi. 

 pt. 2, p. 77 ; Tryon, Man. Conch. (2), n. p. 72 ; &c, &c. 



Anatomy. — Semper, Reis. Philipp. ill. p. 63, pi. 3, fig. 13a, b, 

 pi. 6, fig. 30 ; Ann. Mus. Gen. xix. pi. 8, fig. 2. 



Type in Linnean Society's Museum, London. 



Habitat. — Douglas River (Bevan), Fly River (Froggatt), 

 foot of Owen Stanley Range (Goldie). 



4. N. hunsteini, E. A. Smith, 1887. 



Ulus n — Ann. Mag. Nat. Hist. (5), xix. pi. 15, figs. 6. 



Descr n — L.c. (5), xix. 416. 



Type in British Museum. 



Hab. — Not foot of Astrolabe and Owen Stanley Ranges 

 (Goldie fide Smith), but Milne Bay (Hedley). 



Found upon the hills under rotten palm spathes. Animal 

 measures 70 mm. from pedal horn to base of tentacles, tentacles 

 18 mm., pedal horn 6 mm. in length ; colour reddish-chestnut 

 darkening into black, tentacles black ; mantle margin when fully 

 extended reaching in front over the proximal third of the neck, 

 on the right side down to the pedal line, right shell lobe triangular 

 covering the apex of the shell, and reaching past it to the ultimate 

 whorl, left shell lobe narrow, tongue-shaped, stretching along the 

 last whorl for 1 2 mm. ; tentacles tapering from contiguous bases ; 

 pedal line well marked ; upper surface of tail impressed deeply 

 with a central furrow, whence the surface slopes upwards to an 

 acute keel on either side thence descending perpendicularly to the 

 margin of the foot; horn slender, smooth, as is also the adjoining 

 portion of the tail, incessantly waved from side to side ; mucous 

 gland excavated into the tail above two lobes. 



