32 



Genus MACTE-A, Linn. 

 Syst. Nat., ed. xii. 1125, 1767. 



1. M. Gaudelupensis, Recluz. Journ. de Conch., iii. 249, 



1852. 

 M. graiidis, Lam., An. sans Vert- (Desh. ed.), vi. 99, 1835. 

 M. Lamarckii, Philippi, Abbild. ii. 73, 1845. Guadahupe. 



2. M. maxima, Chemnitz, Conch. Cab., vi. 229, ph 23, f. 288, 



1782. 

 31. c/randis, Gmel., p. 3259, Philippi, Abbild. ii. 73, 1845. 



3. M. nitida, Schroeter, Einl. Conch., iii. pi. 8, f. 2, 1783. 



Keeve's Conch, f. 46. 

 31. straminea, Lam. 



4. M. Spengleri, Linn., Syst. Nat. (12th ed.), 1125, 1767. 



Reeve Conch. Icon. Monog. Mactra, f. 40, 1854. 



Cape of Good Hope. 



5. M. tumida, Chemnitz, Conch. Cab., vi. 218, f. 210, 212, 



1782. 

 Eeeve's Conch. Icon. Monog. Mactra, f. 21, 1858. 



Island of St. Thomas. 



Genus HEMIMACTRA, Swainson. 



1. H. aspera, Sowerby, Tankerville Cat. Appen. 2, 1825. 



Reeve, Conch. Icon. Monog. Mactra, f. 65, 1854. 

 SpizuJa tenera, Humph. ? Gray, Loudon's Mag. Nat. Hist. 

 1837. Philippmes. 



2. H. Dysoni, Deshayes. 



3. H. elliptica, Brown, 111. Conch. Brit. 109, pi. 41, f. 6, 



1845. 

 Reeve, Conch. Icon. Monog. Mactra, f. 101, 1854. 



British and French Seas. 



4. H. elongata, Quoy and Gaim., Voy. Astrolabe, pi. Ill, f. 



5, 8, 1834. 

 Reeve, Conch. Icon. Monog. Mactra, f. 43, 1854. 

 Spizula elongata, Gray, Loudon's Mag. Nat. Hist. 1837. 



Neiv Zealand. 



5. H. Mariae, A. Adams. 



6. H. rostrata, Spengler, Skrivt. Nat. Selskab. v. 115, 1799. 



Reeve, Conch. Icon. Monog. Mactra. f. 104, 1854. 



3Ioreton Bay, Australia. 



