Part 1. 



PHILIPPINE LAND SHELLS BARTSCH. 



17 



AMPHIDROMUS MACULIFERUS MULTICOLOR von Mollendorff. 



Plate 8, figs. 1, 2, 4, 5. 



Amphidromus maculiferus Sempeb, Reis. Arch. Phil., vol. 3, 1873, p. 149. 



1893, p. 99. 

 Amphidromus maculiferus, var. multicolor Fulton, Ann. Mag. Nat. Hist., 



ser. 6, vol. 17, 1896, p. 74. 

 Amphidromus maculiferus Eleka, Cat. Sist. Faun. Filip., 1S96, p. 617. 

 AmjiJiidromus maculiferus multicolor von Mollendorff, Abhand. Naturf. 



Ges. Gorlitz, vol. 22, 1898, p. 149. 

 Amphidromus maculiferus multicolor Pilsbky, Man. Conch., vol. 13, 1900, 



pp. 131-132. 



Shell elongate-ovate; the first two whorls with the usual narrow 

 black band at the suture, the rest with alternating, retractive bands 

 of yellowish white and brown, the brown bands on the last whorl 

 following a somewhat zigzag course and being more closely spaced on 

 the last turn than on those preceding. The white bands between the 

 darker appear as if superimposed upon a dark ground. The inside 

 of the lip is of a purplish blue color, while the peristome is white. 

 The shell in its entirety is much darker than any of the other races of 

 A. maculiferus. One of the specimens in the Webb collection has a 

 tendency toward spiral lines of brown on the last volution. We have 

 seen the following specimens: 



AMPHIDROMUS MACULIFERUS SAMARENSIS, new subspecies. 



Plate 7, fig. 4. 



Shell very similar in outline to boholensis, but stouter, with the 

 brown bands much darker. The narrow black band on the first two 

 whorls is very faint. The lines of growth are also a little stronger 

 in this than in boholensis. The type (Cat. No. 215579, U.S.N.M.) 

 was collected by Quadras on the island of Samar. It has 6.5 whorls 

 and measures — length, 56.4 mm. ; diameter, 29 mm. — and was pre- 

 sented to the Museum by Mr. Webb. 



101825°— Bull. 100—17 2 



