45 



8. S. fragilis, Chemnitz, Conch. Cab. vi. 236, pi. 24, f. 235, 



1782. 

 Reeve, Conch. Icon. Monog. Mactra, f. 47, 1854. 

 Mactra Braziliana, Lam., An. s. Vert. vi. 106, 1835. 

 3L oMonc/a, Say, Jour. Acad. Nat. Sci. Phila. ii. 310, 1821. 

 jSpisida fragilis, Gray, Loudon's Mag. Nat. Hist. 1837. 



Honduras, Florida. 



Sub-genus MACTROMERIS. 



9. S. ovalis, Gould, Amer. Jour. Sci. (2d ser.) xxxviii. 196, 



1840. 

 Inverteb. of Mass. 53, f. 32, 1841. 

 *S'. po7iderosa, Philippi, Abbild. iii. 1845. 

 iS. similis, Gray, not Say. 

 S. grandis, Deshayes, not Chemnitz. 



10. S. Ovata, Gray, Fauna of New Zealand, 251, 1843. 



Reeve, Conch. Icon. Monog. Mactra, f. 30, 1854. 

 Spisula ovata, Gray, Loudon's Mag. Nat. Hist. 1837. 



Neiv Zealand. 



11. S. planulata, Conrad, Jour. Acad. Nat. Sci. vii. 240, 1834. 



Sta. Barbara. 



12. S. Sayi, Gray, Mag. Nat. Hist. 373, 1837. 



Spisula Sayi, Gray. Florida. 



13. S. silicula, Deshayes, Zool. Proc. 69, 1854. 



Reeve, Conch. Icon. Monog. Mactra, f. 108, 1854. 



Luzon, Fhilippines. 



14. S. Striatella, Lam., An. sans Vert. vi. (Desh. ed.) 98, 1835. 



Reeve, Conch. Icon. Monog. Mactra, f. 12, 1854. 



15. S. velata, Philippi, Zeits. f. Malak. 153, 1848. 



Abbild. iii. 137, pi. 3, f. 5, 1845. Reeve, Conch. Icon, 

 Monog. Mactra, f. 20, 1854. Panama. 



\ 

 Sub-genus MEROPE, H. and A. Adams. 



16. S. -ffigyptiaca, Chemnitz, Conch. Cab., ii., 218, pi. 200, 



f. iy55-6. 

 Reeve, Conch. Icon. Monog. Mactra, f. 112, 1854. 



17. S. Anatinoides, Reeve, Conch. Icon. Monog. Mactra, f. 



123, 1854. 



18. S. capillacea, Deshayes, Zool. Proc, 69, 1854. 



Reeve, Conch. Icon. Monog. Mactra, f. 117, 1854. 



Fhilippines, and mouth of Fndus. 



