16 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



AMPHIDROMUS MACULIFERUS BOHOLENSIS. new subspecies. 



Plate 1, fig. 2 ; plate 7, figs. 1-3. 



Bulimus maculiferus, var. C. Broderip, Proc. Zool. Soc. London, vol. 9, 1841, 



pp. 14-15. 

 Am phid ramus maculiferus Semper, Pteis. Arch. Phil., vol. 3, 1S73, p. 149. 

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



Shell elongate-ovate. Whorls moderately well rounded and ap- 

 pressed at the summit; sutures moderately constricted; aperture nor- 

 mal. The first two turns show a faint, black band in the suture, the 

 rest being white. The succeeding turns are marked by alternate re- 

 tractively slanting bands of pale brown and dingy white, the latter 

 usually a little broader than the brown areas. There are no distinct 

 dark varices. 



The type and nine specimens of this species were collected by A. 

 Celestino, at Sevilla, Bohol. The type (Cat. No. 245563, U.S.N.M.) 

 has six and a half whorls and measures — length, 57 mm. ; diameter, 

 27.5 mm. The following specimens have been examined : 



1 Type. 



