NO. 2104. LAND SHELLS OF THE GENUS SCHI8T0L0MA—BART8CH. 



201 



Cat. No. 205181 

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 Cat. No. 205181 

 Average, altitude, 

 Greatest, altitude, 

 Least, altitude, 19 



.S.N.M.; altitude 

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 .S.N.M.; altitude 

 20.40 mm.; diameter, 9.37 mm 

 21.4 mm.; diameter, 9.9 mm. 

 mm.; diameter, 9.0 mm. 



20.0 mm. 



21.3 mm. 



20.5 mm. 



20.6 mm. 



20.7 mm. 

 20.0 mm. 

 20.0 mm. 

 20.9 mm. 



20.7 mm. 

 19.0 mm. 



20.5 mm. 

 20.0 mm. 



20.4 mm. 



20.3 mm. 



19.5 mm. 



21.4 mm. 



20.6 mm. 

 20.2 mm. 



20.6 mm. 

 20.2 mm. 

 21.0 mm. 



20.8 mm. 



20.9 mm. 



diameter 

 diameter 

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, 9.2 mm. 

 , 9.4 mm. 

 , 9.5 mm. 

 , 9.2 mm. 

 , 9.5 mm. 

 , 9.4 mm. 

 , 9.1 mm. 

 , 9.3 mm. 

 , 9.1 mm. 

 , 9.4 mm. 

 , 9.4 mm. 

 , 9.6 mm. 

 , 9.4 mm. 

 , 9.3 mm. 

 , 9.0 mm. 

 , 9.2 mm. 

 , 9.5 mm. 

 , 9.3 mm. 

 , 9.9 mm. 

 ,9.2 mm. 

 , 9.0 mm. 

 , 9.9 mm. 

 , 9.1 mm. 



Semerara Id. 

 Semerara Id 

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SCHISTOLOMA (SCHISTOLOMA) McGREGORI TABLASENSIS, new subspecies. 



In this subspecies, which comes from Tablas Island, the reflected 

 lip is chocolate brown. 



The seventeen specimens examined give the following measure- 

 ments : 



Cat. No. 195733, U.S.N. M.; altitude, 23.2 mm.; diameter, 10.6 mm. Tablasld.(type) 

 Cat. No. 195733, U.S.N.M.; altitude, 22.0 mm.; diameter, 10.3 mm. Tablas Id. 

 Cat. No. 195733, U.S.N. M.; altitude, 22.8 mm.; diameter, 10.2 mm. Tablas Id. 

 Cat. No. 195733, U.S.N.M.; altitude,.23.2 mm.; diameter, 10.9 mm. Tablas Id. 

 Cat. No. 195733, U.S.N.M.; altitiide, 23.7 mm.; diameter, 10.5 mm. Tablas Id. 

 Cat. No. 195733, U.S.N.M.; altitude, 23.7 mm.; diameter, 10.4 mm. Tablas Id. 

 Cat. No. 195733, U.S.N.]\I.; altitude, 22.0 mm.; diameter, 10.3 mm. Tablas Id. 

 Cat. No. 195733, U.S.N.M.; altitude, 22.8 mm.; diameter, 10.3 mm. Tablas Id. 

 Cat. No. 195733, U.S.N.M.; altitude, 23.9 mm.; diameter, 10.5 mm. Tablas Id. 

 Cat. No. 195733, U.S.N. M.; altitude, 22.3 mm.; diameter, 10.5 mm. Tablas Id. 

 Cat. No. 195733, U.S.N.M.; altitude, 22.0 mm.; diameter, 10.2 mm. Tablas Id. 

 Cat. No. 195733, U.S.N.M.; altitude, 22.1 mm.; diameter, 10.2 mm. Tablas Id. 

 Webb collection, altitude, 23.0 mm.; diameter, 10.6 mm. Badagoz, Tablas Id. 

 Webb collection, altitude, 23.0 mm.; diameter, 10.6 mm. Badagoz, Tablas Id. 

 Webb collection, altitude, 22.3 mm.; diameter, 10.8 mm. Badagoz, Tablas Id. 

 Webb collection, altitude, 23.0 mm.; diameter, 10.6 mm. Badagoz, Tablas Id. 

 Webb collection, altitude, 22.2 mm.; diameter, 10.1 mm. Badagoz, Tablas Id. 

 Average, altitude, 22.77 mm.; diameter, 10.44 mm. 

 Greatest, altitude, 23.7 mm.; diameter, 10.9 mm. 

 Least, altitude, 22.0 mm.; diameter, 10.1 mm. 



