NEW SPECIES OF LAND AND FRESH WATER MOL- 

 LUSCA FROM MACLAY-COAST AND TRITON BAY, 

 NEW GUINEA, COLLECTED BY BARON MACLAY, 



By J. Brazier, C.M.Z.S., <kc., &c. 



1. Helix (Geotrociius) Gorenduensis. Nov. sp. 



Shell imperforated, trochus-shaped, rather thin, obliquely finely 

 striated and transversely wrinkled, flesh-tinted a cream colour ; 

 ornamented with pinkish opaque spots and dots ; spine rather 

 ■conoid, whorls 5, convex the last more convex the first three apical 

 whorls dark rose pink, the fourth a little lighter in colour, the fifth 

 slightly keeled in front, cream coloured, and marked with opaque 

 pinkish spots and dots ; base convex, sculptured same as above ; 

 aperture triangular, very much produced and contracted in fi-ont, 

 constricted behind the aperture, interior bright pink, peristome 

 blackish purple, slightly reflected ; the right margin descending in 

 front ; columellar margin flattened and expanded, tinged with 

 brown, margins joined with a thin pink callous entering spirally 

 into the interior of the ai)erture. 



Diam., Maj. 25. Min. 20. Alt. 15 millim. 



Hah. — Gorendu, Maclay-Coast, New Guinea, 1876. 



Two specimens of this very pretty species were found by Baron 

 Miklouho-Maclay. One was dead and weather-beaten, the other 

 was found with the animal alive. The Baron informs me that the 

 animal was black, and that the back of the neck was brown. 



2. Helix (Geotrochus) Maclayiana. Nov. sp. 

 Shell covered with a thin yellowish brown epidermis, umbilicated, 

 depressly conoid, rather solid, obliquely plicately striated, every- 

 where minutely malleated, encircled with numerous spiral broken 

 purplish-chesnut lines and whitish opaque patches ; spire some- 

 what obtuse ; whorls 4| moderately convex, the two apical whorls 

 smooth, white, the last large, convex, descending in front ; suture 



