262 The Philippine Journal of Science mz 



Locality: In bank, Agusan River at San Rafael, Mindanao, 

 No. 1054. 



Formation: Recent or Pleistocene shale. 



Nassa verbeeki K. Mart. Plate IV, figs. 2, 7, 8, and 10. 

 K. Martin, Foss. v. Java, 1, n. s., PI. XVII, figs. 247-255. 



When I first compared the Philippine and Javan specimens 

 I thought that the Philippine specimens represented a new 

 species, but I found that in Martin's collection there was every 

 variation existing among these specimens; namely, smoothness 

 or roughness of the first whorl, slight upward projecting point 

 of the lip, thickening just behind the edge of the aperture, and 

 breadth of body whorl. 



Locality: San Rafael, Agusan River, Mindanao, No. 1054. 



Formation: Recent or Pleistocene shale. 



Nassa siquijorensis A. Adams. Plate IV, fig. 3. 

 Reeve, Conch. Icon., 8, PI. VIII, fig. 53. 



The living form was collected by Cuming on the small Island 

 of Siquijor, and the form shown here was compared directly 

 with it in the British Museum. With the exception of the some- 

 what more contracted aperture in the fossil specimen, there is 

 no essential difference between the two. 



Locality: San Rafael, Agusan River, Mindanao. 



STROMBIDiE 



RIMELLA Agassiz 



Shell spindel-shaped ; surface cancellated; edge of the outer 

 lip thickened, intact or notched; anterior canal short, the pos- 

 terior channel more or less elongated, following the whorl. 

 (Zittel.) 



Rimella javana K. Mart. Plate IV, fig. 4. 



K. Martin, Tertiarscht. auf Java (1880), PI. IX, fig. 7. 



The specimen shown on Plate IV was compared directly with 

 the type in Leiden from which I could not distinguish it. 



There is still another specimen in the Bureau of Science 

 collection which, although somewhat mutilated, resembles R. 

 spinifera. 



Locality : San Rafael, Agusan River, Mindanao. 



Formation: Pleistocene. 



Elevation : About 50 meters. 



