Part 1. 



PHILIPPINE LAND SHELLS BARTSCH. 



25 



Amphidromus chloris Hidalgo, Mem. Real Acad. Sci., Madrid, 1S98, pi. 99, 



figs. 3-4. 

 Amphidromus chloris Pilsbey, Man. Conch., vol. 13, 1900, pp. 142-144. 



Shell very elongate-ovate, pale canary yellow with a narrow white 

 band at the summit. Peristome and aperture white. Whorls well 

 rounded, somewhat constricted at the suture, marked by fine lines of 

 growth only. Aperture elongate, oval; outer lip reflected and thick- 

 ened; inner lip expanded at the base, partly reflected over the um- 

 bilicus where it joins the moderately thick callus of the parietal wall. 



A specimen belonging to the Chicago Academy of Sciences, col- 

 lected by Quadras at Zamboanga, Mindanao, has 6.5 whorls and 

 measures — length, 44.7 mm. ; diameter, 22.5 mm. This specimen 

 might have served for Reeve's figure cited above, so perfectly does it 

 agree with it in every feature. 



Adams and Reeve state, locality cited, that the animal of Bulimus 

 chloris is of pale brown color * * * and of extremely vivacious 

 habits. A bushel of them, collected on the mountains of Mindanao, 

 soon dispersed themselves all over the cabin in which the basket was 

 deposited. The shell was of elongate form and deep yellow color 

 throughout, with no indications of bands or markings. The figure, 

 however, shows the pale sutural band of white. 



Thanks to the kindness of Mr. Walter F. Webb, I have had the 

 opportunity of examining 393 specimens of this species collected at 

 Talantalan, Zamboanga, Mindanao. These give the following meas- 

 urements : 



The extremes represented by the seven specimens, Cat. No. 215G41, 

 U.S.N.M., which are figured, yield measurements as follows: 



