M. M. SCHEPMAN, LAND- AND FRESHWATER MOLLUSCA ETC. 175 



Mal. N. Guinea, p. 34, PI. 1, fig. 14, 15) being spirally striated ail over, by its colour markings, 

 M. singularis being not spotted,- the columellar side is much straighter in the new species. 

 It is also allied to M. indefinita Lea, but the sutures are less canaliculate, the columellar 

 margin is straighter, and that species is not spotted. It is rather hazardous to describe a new 

 species in this group, on only one spécimen, but it proved to be impossible, to unité it to 

 any described species. 



6. Melania (Melanoides) similis n. sp. PI. V, fig. 7. 



Shell turreted, rather thin, light olive with brown fiâmes, spire nearly entire; whorls 

 from 7 — 9, moderately convex, last one slightly flattened in the médian part, separated by a 

 distinct but shallow suture. Sculpture consisting on the upper whorls, of spiral lirae, crossed 

 by fine growth-striae, which produce a fine, cancellated appearance, on the last 3 whorls, 

 thèse striae become inconspicuous and the sculpture consists of spiral striae, which are faint 

 on the upper part, very conspicuous towards the base of each whorl and occupy the médian 

 part of last whorl, which is smooth at its base. Aperture oval, not very acute above, with a 

 rounded base and slightly curved columellar margin; peristome sharp, slightly protacted below. 



Alt. 20, lat. 7 ; apert. ait. 7, lat. nearly 4 mill. (lower part of aperture slightly damaged). 



New Guinea. Alkmaar, Oct. 6, 1909. 



Perhaps the nearest allied species is M. flyensis Tapp. Can. (Fauna Mal. N. Guinea 

 p. 41, PI. 1, fig. 19), but if the figure be not too incorrect, immediately distinguishable by 

 the much more constricted sutures, especially of the upper whorls and by the particulars 

 of sculpture. 



7. Melania (Melanoides) striatissima n. sp. PI. V, fig. 8. 



Shell acuminately-turreted, rather thin, dark brown, if seen by transparent light within 

 the aperture, with a few brown spots below the suture, some fiâmes and spots near the base 

 and a basai band, ail oft he same colour; spire nearly entire, whorls 10, rather convex; the upper- 

 most whorls with a constriction below the suture, fading on lower whorls ; suture deep, narrowly 

 canaliculate. Sculpture consisting on the upper whorls of narrow spirals, on about 2 or 3 upper, 

 whorls crossed by oblique ribs, occupying nearly the whole breadth of about 3 subséquent 

 whorls; many of thèse ribs are only visible on the upper part of next whorls and disappear 

 towards the last one; on the lower whorls the spirals are very broad and separated by shallow 

 grooves, the lirae consist each of a number of very fine spirals (until 7) especially conspicuous 

 where the velvety epidermis is présent. Aperture oval, moderately acute above, with a slightly 

 efiused base and curved columellar margin, peristome slightly protracted below. 



Alt. 21, lat. 8, apert. ait. 7 I / 4 , lat. 4 1 /., mill. 



New Guinea. Merauke, Nov. 13, 1907. 



This species resembles in shape still M. flyensis Tapp. Can., but is quite différent by 

 its peculiar sculpture; perhaps M. pellicens Tapp. Can. (Fauna Mal. N. Guinea, p. 30, 

 PI. 1, fig. i8j has a similar sculpture, though quite différent in particulars, it belongs to 

 another group. 



