12 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



indang Expedition, at 1,100 feet altitude. The type, Cat. No. 244672, 

 U.S.N.M., has six whorls and measures — length, 52 mm.; diameter, 

 31 mm. The following additional specimens have been examined : 



Cat. No., 



u.s.n.m:. 



244672 

 244672 

 244672 

 244673 



244274 



Num- 

 ber of 

 whorls. 



6 

 6 



6.2 

 6.2 



Length 

 in mm. 



52 

 56 



56.6 

 55.5 



Diame- 

 ter in 

 mm. 



31 



31.2 

 30 

 29 



29 



Locality. 



Catagan, Mindanao, 1100 feet 



do 



do 



Mount Malindang, 3500 to 9200 feet 



(fragment). 

 do 



Collector. 



E. 



A. Mearns. 

 Do. 

 Do. 

 Do. 



Do. 



iType. 

 AMPHIDROMUS MACULIFERUS COTABATENSIS, new subspecies. 



Plate 1, fig. 1; plate 4, figs. 1-8. 



Amphidromus macuUfcrus Fulton, Ann. Mag. Nat. Hist., ser. 6, vol. 17, p. 



74, 1S96. 

 Amphidrwnus maculiferus Hidalgo, Mem. Real Acad. Sci., Madrid, pi. 100, 



figs. 1, 4, 5, 6, 1898. 



Shell elongate-ovate with the whorls well rounded, appressed at the 

 summit, with the sutures moderately constricted; lip normal. First 

 two whorls white, excepting a narrow, black band immediately above 

 the suture. The succeeding two are dingy white, and the remainder 

 yellowish white, in places suffused with pale brown. The first one 

 succeeding the dingy white turns bears a number of zigzag, axial 

 bands of brown with a few spots of the same color, while the rest are 

 marked with numerous, more or less elongate dots of brown, which 

 are preceded by a whitish area. In addition to the above, the whorls 

 are also crossed by a number of strong, dark brown varices. 



The type (Cat. No. 244676 U.S.N.M.) comes from Cotabato, Min- 

 danao. It has 6.2 whorls and measures — length 57 mm.; diameter 

 31.5 mm. The following specimens have been examined : 



