viii, a, 4 Smith: Fossil Invertebrate Fauna 259 



volutim: 



VOLUTA Linnaeus 



Last whorl very large; spire short with apex having warts 

 or short spines ; columella, frequently also the inner lip, possessed 

 of several folds of which the anterior (lower) are strongest; 

 canal very short, bent backward, frequently only a notch; with 

 or without an operculum. (Zittel.) 



Voluta sp. indet. Plate XV, figs. 1, 2, and 3. 



Casts like these are fairly common in certain limestone hori- 

 zons, but it would be quite impossible to go beyond recognizing 

 the genus in the case of these specimens at least. By far the 

 greater part of the petrifactions found in the Philippines are 

 in about this same imperfect state of preservation. 



Locality : Batan Island, southeast coast of Luzon, No. 1. 



Formation : Miocene limestone. 



TURBICTJLA Adams 



Shell fusiform to elongate, oval solid; transversely ribbed, 

 spire high, acuminate; aperture narrow, channelled anteriorly; 

 columella with numerous oblique folds, the posterior plaits being 

 often the strongest; outer margin commonly thickened and 

 smooth internally. Like Mitra, however, with cross ribs. The 

 animals differ from each other in important characters of the 

 radula. According to A. Adams there are 180 recent species. 

 Fossils are abundant in the Tertiary. (Zittel.) 



Turricula jonkeri K. Mart. Plate IV, fig. 18. 

 K. Martin, Foss. v. Java, PI. XI, figs. 175-177. 



The Philippine specimen of T. jonkeri in our collection is 

 smaller than the Javan specimens, and has one very distinct fur- 

 row near the top of each whorl. In the Javan form 3 ridges come 

 somewhat closer together at this groove, but there is not the 

 deep sharp suture which appears in the former. I do not 

 believe this to be a specific difference, however. 



Locality: Agusan River, Mindanao, No. 1054. 



Formation : Recent or Pleistocene shales. 



Turricula bataviana K. Mart. Plate IV, fig. 19. 



K. Martin, Foss. v. Java, PI. XI, figs. 173 and 174. 

 Our specimens of this species are somewhat larger than the 

 Javan ones with which I compared them. Also the edges of 



