Part 1. 



PHILIPPINE LAND SHELLS BARTSCH. 



15 



Shell very elongate-ovate. The first two whorls have the narrow 

 dark band in the suture, the rest are white. The succeeding turns 

 are flesh colored, with very retractively slanting dark brown varices 

 and similarly disposed light hydrophanous bands. Some scattered, 

 elongate dots are also present. Aperture normal. 



This race is said by von Mollendorff to occur in Eastern Mindanao. 

 Six specimens from the von Mollendorff collection, from Davao, 

 Mindanao, are in the United States National Museum. The follow- 

 ing material has been examined : 



AMPHIDROMUS MACULIFERUS GRACILIOR Fulton. 



Plate 7, figs. 5-6. 



Bulimus maculiferus, var. /3 Pfeiffek, Mon. Hel. Viv., vol. 3, 1853, p. 319. 

 Bulimus maculiferus, var. /3 Pfeiffek, Mart. Chem. Conch. Cab., vol. 1, 



1855, pi. 40, fig. 9. 

 Amphidrorrms maculiferus, var. /3 Sempek, Reis. Arch. Phil., vol. 3, 1873, 



p. 149. 

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



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

 Amphidromus maculiferus Eleka, Cat. Sist. Faun. Filip., 1896, p. 617. 

 Amphidromus nigrofilosus Hidalgo, Mem. Real Acad. Sci. Madrid, 189S, 



pi. 100, figs. 1-4. 

 Amphidromus maculiferus gracilior Pilsbry, Man. Conch., vol. 13, 1900, 



p. 132. 



Shell very elongate-ovate ; the first two whorls have a very broad, 

 black band which frequently covers half of the turns, the rest of the 

 early whorls being white. The whorls succeeding are yellowish 

 white with numerous, retractively slanting hydrophanous bands, 

 which are of irregular width and distribution. There are no dark 

 varices. The whorls are rather high between the sutures, strongly 

 appressed at the summit, and well rounded. The aperture is nor- 

 mal. The following material has been examined. 



