NO. 2104 LAND SHELLS OF THE GENUS SCHISTOLOMA—BARTSCH. 199 



SCHISTOLOMA (SCHISTOLOMA) ALTA ROMBLONENSIS, new subspecies. 



In this subspecies, which comes from Romblon Island, the lip is 

 flesh-colored to pale brown. The shell itself has a greenish tinge. 



The six specimens which we have seen give the following measure- 

 ments : 



Cat. No. 296609, U.S.N.M.; altitude, 24.9 mm.; diameter, 11.1 mm. Ilomblon. 



diameter, 11.1 mm. 

 diameter, 11.1 mm. 

 diameter, 12.6 mm. 

 diameter, 11.7 mm. 

 diameter, 10.3 mm. 



Ptomblon. 

 Eomblon. 

 Romblon. 

 Romblon. 

 Romblon. 



Webb collection; altitude, 25.2 mm. 



Webb collection; altitude, 24.5 mm. 



Webb collection; altitude, 26. G mm. 



Webb collection; altitude, 26.0 mm. 



Webb collection; altitude, 22.5 mm. 



Average, altitude, 24.95 mm.; diameter, 11.31 mm. 



Greatest, altitude, 26.6 mm.; diameter, 12.6 mm. 



Least, altitude, 22.5 mm.; diameter, 10.3 mm. 



SCHISTOLOMA (SCmSTOLOMA) ALTA SIBUYANENSIS, new subspecies. 



In tliis subspecies, whicli comes from Sibuyan Island, the lip varies 

 from dark chocolate brown to flesh-colored. The slieU itself, in perfect 

 condition, has a greenish tinge, while in the worn specimens the usual 

 chestnut color prevails. 



Tliis may be what von Mollendorff listed as Coptochilus altum 

 protracta, a nomen nudum. 



Tliirty specimens of this subspecies measure: 



Cat. No. 130873, U.S.N.M 

 Cat. No. 130873, U.S.N.M 

 Cat. No. 130873, U.S.N.M, 

 Cat. No. 130873, U.S.N.M, 

 Cat. No. 184581, U.S.N.M. 

 Cat. No. 184581, U.S.N.M. 

 Cat. No. 296613, U.S.N.M. 

 Cat. No. 296613, U.S.N.M. 

 Cat. No. 296612, U.S.N.M. 



Sibuyan. 

 Cat. No. 296612, U.S.N.M. 



Sibuyan. 

 Cat. No. 296612, U.S.N.M. 



Sibuyan. 

 Cat. No. 296612, U.S.N.M.; altitude 



Sibuyan. 

 Webb collection, 1689 

 Webb collection, 1689 

 Webb collection, 1689 

 Webb collection, 1689 

 Webb collection, 1689 

 Webb collection, 1689 

 Webb collection, 1689 

 Webb collection, 1689 

 Webb collection, 1689 



altitude, 23.7 mm.; diameter, 11.3 mm. Sibuyan. 



altitude, 25.5 mm.; diameter, 11.5 mm. Sibuyan. 



altitude, 25.4 mm.; diameter, 11.2 mm. Sibuyan. 



altitude, 25.5 mm.; diameter, 10.5 mm. Sibuyan. 



altitude, 24.3 mm.; diameter, 10.6 mm. Sibuyan. 



altitude, 25.5 mm.; diameter, 11.2 mm. Sibuyan. 



altitude, 24.2 mm.; diameter, 10.6 mm. Sibuyan. 



altitude, 23.7 mm.; diameter, 11.1 mm. Sibuyan. 



altitude, 24.0 mm.; diameter, 10.4 mm. San Fernando, 



altitude, 24.8 mm.; diameter, 12.3 mm. San Fernando, 



altitude, 26.9 mm.; diameter, 11.4 mm. San Fernando, 



23.5 mm.; diameter, 11.6 mm. San Fernando, 



altitude, 25.0 mm. 

 altitude, 25.9 mm. 

 altitude, 24.0 mm. 

 altitude, 23.6 mm. 

 altitude, 23.2 mm. 

 altitude, 22.7 mm. 

 altitude, 24.1 mm. 

 altitude, 24.0 mm. 

 altitude, 23.6 mm. 



diameter, 11.2 mm. 

 diameter, 11.1 mm. 

 diameter, 11.0 mm. 

 diameter, 11.2 mm. 

 diameter, 11.0 mm. 

 diameter, 11.0 mm. 

 diameter, 11.4 mm. 

 diameter, 11.7 mm. 

 diameter, 11.3 mm. 



Sibuyan. 

 Sibuyan. 

 Sibuyan. 

 Sibuyan. 

 Sibuyan. 

 Sibuyan. 

 Sibuyan. 

 Sibuyan. 

 Sibuyan. 



