PLEIOOENE FOSSILS, 83 



VENUS SAYAN A. . — d'O r b. 

 Plate XXI. Fro 9. 



Cytherea convexa, Say, Jour. Ac. Nat. Sci., Vol. 4, p. 149, pi. 12, fig. 3. 



Cytlierea Sayana, Con., Foss. Ter. For., p. 13, pi. 7, fig. 3. 



Cytherea convexa, Gould, Inv. Mass., p. 84, fig. 49. 



Venus Sayana, d'Orb., Prod, de Paleontologie, Vol. 3, p. 108, No. 2011. 



V. testa sub-cordata, ventricosa, concentrice striata, incequilaterali; latere buccali sub- 

 angulato; umbonibus prominentibus, incurvis, labro Icevigato; lunula cor data. 



Description. Shell sub-cordate, inflated, concentrically striate, inequilateral; buccal 

 side somewhat angular; umbones prominent, incurved, margin smooth, lunule cordate. 



This species is very distinct from its congeners ; its smooth surface distinguishes it from 

 the other fossil veneridee in every stage of growth. It was described by Say under the 

 name of Cytherea convexa, a specific name pre-occupied; it was, therefore, changed to 

 Sayana, by Conrad. 



V. Sayana is not uncommon in the Meiocene of Virginia, and occurs recent along our 

 entire coast. 



Plate XXI. Fig. 9, Interior of right and exterior of left valve. 



Locality. Darlington District. 



Museum, College of Charleston. 



VENUS CRIB&ARIA.— Co n. 



Plate XXI. Fig. 10. 



Venus eribraria, Con., Proc. Acad. Nat. Sci., Vol. 1, p. 310. 

 Venus eribraria, Con., Foss. Ter. Form., p. 67, pi. 38, fig. 2. 



V. testa sub-trigonali, sub-ventricosa; costis 25, concentricis, lamellosis, elevatis, recurvis, 

 subtus striis transversis instructis; lunula cordata laminata; margine intus crenulata. 



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