M. M. SCHEPMAN, LAND- AND FRESHWATER MOLLUSCA ETC. 163 



3. Planispira (Cristigibba) moluccensis Pfeiffer. 



Pfeiffer. Zeitschr. f. Malak., 1850, p. 84. 



Pfeiffer. Mon. Helic. Vol. III, p. 245. 



v. Martens. Ostas. Landschn. p. 392 (semirasa). 



Pfeiffer. Nov. Conch., Vol. IV, p. 38, PL 117, fig. 4 — 6 (semirasa). 



Tapp. Canefri. Fauna Mal. N. Guinea, p. 173 (semirasa). 



Pilsbry. Mari, of Conch. Ser. II, Vol. VI, p. 295, PI. 46, fig. 71 — 73 (semirasa). 



Smith. Proc. Mal. Soc. Lond. Vol. II, p. 120. 



Smith. Ann. Mag. Nat. Hist. Ser. 6, Vol. XX, 1897. p. 411. 



Aru Islands. Fenuabori River. Dec. 5, 1907. 



The spécimens are 2-banded, though the lower one is sometimes faint and in most 

 cases lighter than the broad upper one, the peristome seems to be bleached in many spéci- 

 mens, but the rosy colour is always traceable. I hâve made use of the eldest name, moluc- 

 censis, as Smith has done, since the species should hâve been found on Batchian, and so the 

 argument that the name moluccensis should be improper has lost its value, even if such an 

 argument should sunice to abolish the eldest name. At ail events V. MARTENS and not 

 MOUSSON is the author of the name semirasa, as MOUSSON has neither described the species 

 nor published its name. The hairs of the collected spécimens are lacking, but the scars are 

 very conspicuous. 



4. Planispira (Cristigibba) rliodomphala Tapp. Canefri. 



Tapp. Canefri. Fauna Mal. N. Guinea. p. 176, PI. 4, fig. r2, 13. 

 Pilsbry. Mari, of Conch. Ser. II, Vol. VI, p. 297, PI. 4S, fig. 7, 8. 



A. Typica. 



New Guinea, near Bivak Island, May, 1907; Sept., 24, 1912. (leg. Versteeg). 

 Only thèse spécimens are quite typical; the species is very variable in many respects, 

 many spécimens from other localities are nearly typical, but differ in being much less rose- 

 tinted, they agrée however in the rosy colour of the peristome, I hâve separated them into 

 two colour-varieties : 



a. var. ex col. fasciata n. var. ; nearly typical but only the peristome and a smaller 



space behind it along the suture rosy, with two brown bands. 



New Guinea. Alkmaar, July — Aug. ; Aug. 9, r6, 1907; Van der Sande Paver, Sept. 10, 1909, 

 from the crop of a pigeon; Bivak Island, May 1907; July 10, 12, 13; Oct. 1909; Lorentz 

 River, May 15 — 19, 1907; Sept. 22, 1909; Sabang, Tune 13 — 24, 20 — 30, July r8, Sept. 18, 

 ^07; Oct. 5, r9i2; (leg. Versteeg). 



b. var. ex col. simplex n. var. Nearly quite white, but with a rosy peristome, and the 



space behind the peristome along the suture, as in the preceding var. 



New Guinea. Alkmaar, July — Aug., Aug. 9, 16, 1907; near Bivak Island, May, 1907; Van der 

 Sande River, Sept. 10, 1909, from the crop of a pigeon; Lorentz River, Sept. r6, 1907; 

 Regen Island, Febr. 16, 1910; Resi Ridge, Aug. 30, 1907; Sabang, June 20 — 30, July 4, 

 Sept. 18, 1907; Van Weel's Camp June 23, 1907. 



B. var. nigrolabiata n. var. Colour more typical, with the upper and umbilical zone 

 rosy, buth with black peristome and exteriorly dark near the peristome. 



New Guinea. Alkmaar, Sept. 20, 1909; Lorentz River, Sept. 5 — 12, 20, 1909; Sabang, July 18, 

 1907; Van Weel's Camp, June 23, 1907. 

 Nova Guinea. XIII. Zoologie. 22 



