viii, a, 4 Smith: Fossil Invertebrate Fauna 273 



Chione (Venus) chlorotica Phil. Plate VII, figs. 7 and 8. 



Save for a slight difference in color which may be due to 

 age or inclosing material these forms are identical with the 

 Javan forms. Forms very closely allied to this, if not the 

 same form, are living in Philippine waters to-day. 



Locality: Agusan River, Mindanao, No. 1054. 



Formation: Recent. 



Chione (Venus) pulcherrima K. Mart. Plate VIII, fig. 1. 



Samml. d. geol. Reichs-mus. in Leiden (1891-1906), 1, n. s., PI. XIII, 

 fig. 47. 



The form shown here may be a variety, for while the sculpture 

 corresponds pretty well with the Javan form the latter is longer 

 and not so high and perhaps slightly thinner. It also cor- 

 responds fairly well with V. granosa from the Cutch, India. 



Locality: Opan, Mactan Island, about 3 meters above sea 

 level, No. 275. 



Formation : Pliocene or Pleistocene reef. 



DOSINIA Scopoli 



Shell circular, compressed, concentrically striated or grooved, 

 with deep lunule under the beaks; hinge teeth 3, the right 

 posterior and the anterior left are cleft; edges smooth, pallial 

 sinus deep, ascendant pointed. About 100 recent species, fossils 

 abundant in the Miocene and Pliocene. (Zittel.) 



Dosinia boettgeri K. Mart. Plate VIII, fig. 2. 

 Tertiarscht. auf Java (1880), PI. XVI, fig. 4. 



This is a rather young form, but not essentially different 

 from the Javan species. These forms are casts and therefore 

 allowance must be made for the difficulties in making exact 

 determinations. 



Locality: One-half kilometer west of the city hall, Baguio, 

 Mountain Province, No. 41. 



Formation: A very friable, reddish colored, tuffaceous sand- 

 stone; altitude, 1,500 meters. 



pectinim: 



PECTEN Klein 



Shell round or higher than long, equivalved and apparently 

 equilateral; free; upper surface mostly radially ribbed or 

 striated; the anterior ears somewhat larger than the posterior, 

 having on the right valve a deep byssal notch ; hinge line straight, 



