vm, a, 4 Smith: Fossil Invertebrate Fauna 277 



2 hinge teeth and 2 lateral teeth in each valve; frequently the 

 lateral teeth are obliterated, sometimes also one or both of the 

 hinge teeth ; anterior muscle impression large, narrow, elongated 

 toward the middle of the shell; posterior one oval, close to 

 the margin ; pallial line without indentation ; inner surface inside 

 the pallial line rough, frequently with a prominent furrow. One 

 hundred living and at least 300 fossil species. (Zittel.) 



Lucina (Codakia) sp. Plate VIII, fig. 5. 

 Cf. Proc. Malacolog. Soc, 3. 



The species which I have been able to locate having the 

 greatest resemblance to this form is L. semperiana Issel from 

 the Andaman Islands. I do not see enough difference to lead 

 me to place it elsewhere, nor do I feel sure enough of the 

 diagnosis definitely to call it by this name. 



Locality: Batan Island, southeastern Luzon, No. 4. 



Formation: Miocene. 



cardiim: 



CARDITJM Linnaeus 



Shell inflated heart-shaped, sometimes narrow or longitud- 

 inally oval, closed or somewhat gaping; outer surface radially 

 ribbed or striated, the ribs frequently possessing nodes or 

 tubercles, edges crimped or toothed ; hinge teeth 1, 2, 1:1, 2, 1 ; 

 hinge and lateral teeth in their development somewhat weak. 

 Two hundred recent species and from 300 to 400 fossil species. 

 (Zittel.) 



Cardium elongatum Brug. Plate VIII, fig. 6. 

 Ency. Mith. (Vers.) (1), 1789, 228. 



The cast shown here is from the old Spanish Mining Bureau 

 collection. Nothing is known either as to its locality or the 

 formation it came from save that it must have been a limestone. 

 It represents a young form probably. 



This species is living in the waters near Panay and Jolo. 



Cardium flavum Linn. ( ?) Plate IX, fig. 1. 



Syat. Nat. ed. 10 (1758), 363; Reeve, Mon. fig. 68. 



This form is another of a collection of relics from the Spanish 

 regime, and nothing is known as to its locality. It is from a 

 limestone formation. This species, if it is flavum, is still living 

 in Philippine waters as indicated by Hidalgo. 24 



M Catalogo de los Moluscos Testaceos de las Islas Filipinas. Madrid 

 (1905), 344. 



