— 9 — 



Mactracea liamck. contin. 



Agass. 18.39. Moul. de Moll. p. 38. — genera: Mac- 



tra, Mosodesma, Amphidesma, Donax, Tellina. 

 Reeve 1841. Conch. syst. I. p. 59. — quinta familia 



Tropio[)odiim bimusculosorum. Genera : Lutra- 



ria, Maetra, Gnathodon, Crassatella, Mesodesma, 



Ungulina , Amphidesma, Cumingia. 



Pariter Catlow 184.5. Conch. Nom. p. 12. 

 G. B. Sow. j un. 1842. Conch. Man. ed. 2a p. 181. — 



genera : l.utraria, j^lactra, Gnathodon, Crassatella, 



Amphidesma, Erycina, Ungulina, Ervilia, Cumingia. 

 De KoNiNCK 1842. Terr. anthr. p. 66. — novum 



proponitur genus: Edmondia. 

 HiNDS 1844. Zool. of Belch. Voy. p. 70. (Mactra- 



ceae) — novum instituitur genus: Pythina. 

 Synon. Conchacea sect. b. Blainv. olim. 



Mactracaea Berth. 



Mactradae Fleming. Gray olim. 



Mactridae Gray. 



Mactracidae D'Orb. olim. 



Mactrina Milne-Edw. 

 Jflacfraceae IIiivds vid. Mactracea Lamck. 

 ]flactraciclae D'Orb. olim 1836. Moll. Canar. * t.Agass. Noin. 

 Etym. Mactra. 



Famiba Acephalorum, postea Myacidis injuncta. 

 ITactradae Flem. 1828. Hist. Br. An. p. 409. 



Familia Siphonidum tertiae sectionis. Genera : Mac- 



tra, Goodallia, Lepton, Kellia, Loripes, Ervilia, 



Amphidesma. 

 J.E. Gray 1837. Loud.Mag. L p. .370. * > Wiegm. 



Arch. 1838. L p. 86. — genera : Schizodesma, 



Mactra, Spisula , Lutraria, Muhnia, Gnathodon. 

 = Mactracea Lamck. 

 IVIactresia Grav 1840. Syn. cont. Brit. Mus. * teste Agass. 



Nomencl. 

 Etym. Mactra. 

 Genus Mactridarum ? 



Vol II. , J ** 



