*1825, 

 Oct. 



296 DREISSENSIID^ 



1. Dreissensia polymorpha (Pallas). 



Etym. : — Gr. ttoAiV, many + fx.op(f>r), form. 



1771. Mylidus polymorphus : Pallas, Reise Riiss. Reichs, i, 



p. 478. 

 *1780. Pinna fluviatilis : Sander, Vaterldnd. Bemerk. Alle Thl. 



Naturgeschichte. [Fide Brusina, Journ. de 



Conchy!., liii, 1906, p. 277.] 

 1791. Mytilus polyniorphics : Gmelin, in Linn. Syst. Nat., 



ed. 13, i, pt. 6, p. 3363, no. 57. 

 1825,1 Myt ? Volgensis : Gray, Ann. Phil, xxv (N.S. ix), 

 Feb. / p. 139. 



Mytilus Hagenii : Baer, Inst. Solemn. C. G. Hagen, p. 11. 



[Fide Index Animalium MS. Notes in Nat. 



Hist. Mus. The name was republished in 



I sis [xviii], col. 526. Also in Ferussac's 



Bull. Sci. Nat., viii, 1826, pp. Ul-42, whence 



it has been misquoted as " Mytilus Chem- 



nitzii, Fer."] 

 1828. Mytilus Wolgo', Chemnitz : C. Pfeiffer, Naturg. 



Deutsch. Moll., iii, p. 67.. [The reference 



commonly cited as of Chemnitz, xi, p. 256, 



f. 2038, is inadmissible, the work at that 



time not being binominal.] 

 1828. Mytilus Volgensis : Wood, Suppf. Index Test., p. 8, 



pi. ii, f. 6. 

 ''1834. Mytilus area: Kickx, Descript. nov. e.sp. Moule fluv., 



p.?. 

 1835, ~\ Driessena polymorpha : Beneden, Bull. Acad. Bruxelles, 

 Jan. J ii, p. 25. 



1835,\ Breissena polymorpha : Dumortier, Bull. Acad. 

 Feb. J Bruxelles, ii, p. 44. 



1835, \ Breissena polymorpha, nob. : Beneden, Ann. Sci. Nat., 

 Apr. j Ser. II (ZooL), tom. iii, p. 210. 



1835, 'I Tichoqonia Chemnitzii, mihi : Rossmassler, Icon., i, 

 Apr. / ■ p. 113, f. 69. 



1835. Bithahnia Banuhii : Jay, Cat. Shells, p. 19. 



1836. Bythalmia Banuhii : Jay, o. c, ed. 2, p. 25. [In ed. 3, 



1839, p. 4, Jay states in answer to G. B. 

 Sowerby that " M. Miihfield is the author 

 of Bythalmia Banuhii " ; but this cannot be 

 verified.] 



1837. Mytilina folyniorpha, nob. : Cantraine, Bull. Acad. 



Bruxelles, iv, p. 114. 

 1840,\ Breis.sena polymorpha, Pallas : Gray, in Turton's 

 Apr. j Manual, new ed., p. 300, fig. 



. '[- Mytilus Toreyi, Stenz : Gray, o. c, p. 301, in synon. 



o *', I Breissena poh/morpha. Van Beneden : Brown, Illust. 

 jgP^ I Conch. Brit., ed. 2, p. 76, pi. xxix, f. 4-9. 



