Vol. XI] DICKERSON— FAUNA OF THE VIGO GROUP 11 



10/17/19. Colls. Roy E. Dickerson and Mark Fuken." The 

 list of species is given below : 



Locality 9x 



Conus striatellus Jenkins. 



Conus hardi K. Martin. 



Nassa crenulata (Brngiere) ; living. 



Strombus fusus K. Martin (probably Clavella). 



Area cf . ccelata Reeve ; living. 



Area ferruginea Reeve; living. 



Clementia hyalina Reeve=C. papyracea; living. 



Dosinia cretacea Philippi ; living. 



Tellina. 



This fauna though meager is not distinct in any way from 

 faunas listed above. As Pratt 4 and Smith point out there is 

 no evidence of any notable stratigraphic break here, and the 

 stream in its meanderings so exposes the strata that exact ob- 

 servations are- possible. Their tentative evidence of an uncon- 

 formity between the Canguinsa and Vigo in Cambagaco ridge 

 near the Vigo River is interpreted by the writer as a result of 

 faulting. 



"Locality llx, Philippine Islands, Luzon, Tayabas Province, 

 Bondoc Peninsula, on west bank of Sapa Yaknas, in soft yellow 

 sandstone of Canguinsa age. 10/31/19. Coll. Roy E. Dicker- 

 son." The strata at this point dip west about 20° while the 

 overlying Malumbang a few hundred feet west has a gentle 

 dip of 2° to 3°, and at other places in this vicinity a notable 

 unconformity separates these two formations. The fauna 

 listed below is especially noteworthy as being composed of 

 85 to 90% living species. Here again, the stratigraphy is very 

 satisfactory. 



Locality llx 



Architectonica pictum (Philippi) ; living. 

 Cancellaria elegans Sowerby; living. 

 Cyprcea, species. 



4 Pratt, W. E., and Smith, W. D., Phil. Jour. Sci., Vol. VIII, 1913, Sec. A, No. 5, 

 page 317. 



