Smith, W. D., 1913. Contributions to the Stratigraphy and Fossil Invertebrate Fauna of the Philippine Islands. The Philippine Journal of Science, 8 (sect. A   ).
 (2.26 MB)
        
            New Species-Group Names:
            
                - 
                    philippinensis W. D. Smith, 1913. p. 256. pl. 2, fig. 1.