FAMILY I.V.MN.-lilUyK 6l 



y, Polyrhytis Mekk. Rep. Inv. Fos. Upper Missouri, p. 532, 1876; type 

 Liinniia kingi Meek (I'liocene). 



> Oinphiscola Mkkk, Re|). Inv. Kos. Upper Missouri, p. 533. 1876 ; type 



Liinniea glabra (MiiUer) ; not of Ratinesque. 

 OinphaHa " Kaf. ," Meek, op. cit., j). 532, in syn. ; err. pro Omphiscola 



Ralinesque. 

 ? Erinna H. and A. Aijams, Gen. Rec. Moll., 11, p. 644, 1858; type /:,". 



neiucombi Adams. 

 'y A'eritostoma H. and A. Adams, Cen. Rec. Moll., 11, p. 253, 1855, ist sp. 



L. auricularia (Linne). Not of Miirch, 1864. 

 f I'elutiiiopsis SANUliKRGEK, Land u. siissw. Conch, d. Vorwelt, p. 700, 1S75, 



type Lhnmea 7't'!ulina Desli. (Lower I'liocene). 



> LeptolimncFus Sandbkrgkr, Land u. siissw. Conch, d. \'orweIt, p. 787, 



1875 ; sole ex. cited L. glaher (Miiller). 

 EuHinneus Sandherger, Land u. siissw. Conch, d. \'orwelt, pp. 787, 844, 



1875 ; sole ex. cited L. slagiialis (L). 

 '^ Fos s aria Westerlund, Fauna, Pal. Reg., v, p. 49, 1885 ; L. truncatula 



(Miiller); Acta Soc. Sci. Slav. Merid., CLI, p. 118, 1902. 



> Tanousia BouRGUiG.v.VT, in Servain, Hist. Mai. du Lac ISalaton, 1881.' 



Type L. znnanja Brusina ; Westerlund, op. cit., p. 53, 1885, p. 118, 



1902. 

 '^ Lymnophysa (Fitzinger) Hazay, Mai. Blatt., 2d ser., iii, p. 163, 1881. 

 'y IJmniis Dvbowski, Bull. Imp. Acad. Sci. St. Petersburg, xviii, p. 113, 



March, 1903, not of Agassiz, nom., 1847. 



> Omphalolimnits Dybow.ski, Nachrichtsbl. d. d. Mai. Ges., Sept. -Oct., 



1903, .XXXV, p. 143, 1903. Type L. lagorii Dybowski ; Bull. Acad. St. 



Petersb., xviii, p. 113, 1903. 

 ~y Physastra Tapparone Canekri, Ann. Mus. Genov., xix, p. 245, 1883. 



Type P. Vts/i/a T.-C, op. cit., p. 246. New Guinea. 

 y Zagrabica Brusina, Beitr. Pal. Oest.-Ung., 1 884, Z. Jiaticoidcs Brus. — 



Westerlund, Acta Acad. Sci. Slav. Merid., cli., p. 119, 1902. 

 Not IJinna-a Poh, Test. Utr. Sicil., i, p. 31, 1791, 11, p. 253, 1795 (not 



binomial). 



The genus Lymncea as now understood is due to Lamarck, though 

 several authors, including Westerlund as late as 1SS5, have given 

 credit for it to Bruguiere. This has probably arisen from a failure to 

 observe the dates of the different livraisons which contained the plates 

 of the Encyclop^die Methodique. The plate containing the name 

 Lymncea was not issued until 1816 (though often cited as 1791), and 

 then it was under the supervision of Lamarck, Bruguiere having 

 nothing to do with it. The name Lymncea had already been used 

 by Poli, in 1791, for the animal of various unrelated bivalves, but 

 his ingenious quadrinominal system takes the work of Poli out of 

 the category of those which can be cited in nomenclature, except 

 historically. 



'The multitude of group n.Tines used for mutations of Lymnira stagiia/is and 

 other species by Servain in his ' Lake Balaton ' paper, can hardly be regarded as 

 having entered into systematic nomenclature, as they are groups of less value 

 than species, and physiological rather than hereditary, according to Hazay. 



