VALVATA 31 



7. Valvata cristata, Miillcr. 



Etyni. : — Lat. cristalus, crested, in allusion to its conspicuous 

 plumed gill. 



1774. Valvata crislata : MCiller, Venn. Hist., ii, p. 198. 

 1791. Nerita valvata: Gmklin, in Linn. Syst. Nat., ed. 13, i, 



pt. 6, p. 3675. 

 1801. Valvata planorhis : Draparnaud, Tahl. Moll. France, 



p. 42. 

 1803. Helix crislata, Muller : Montagu, Test. Brit., p. 460, 

 vign. 1, f. 7 & 8. 

 [According to Jlontagu (Test. Brit. Suppt., p. 147) this 

 species occurred in the Portland Collection under 

 the name of Helix cornea minime.^ 

 1805. Valvata spirorbis : Draparnaud, Hist. Moll. France, 



p. 41, pi. i, f. 32 &33. 

 1805. Valvata planorhis: Draparnaud, o.c, p. 41, pi. i, f. 34 

 &35. 



1805. Valvata minuta : Draparnaud, o. c, p. 42, pi. i, f. 36-38. 



1806. Valvearius cristatus, Muller : Froriep, in Diimeril's 



Analyst Zool., p. 165. 



1807. Nerita valvata, L. : G. Hartmann, Alpina, ii, p. 234. 

 1807. Tiirho cristatus : Maton & Rackett, Trans. Linn. Soc, 



viii, p. 169. 

 Tarho cristatus, Miill. : Dillwyn, Cat. Shells, ii, 



p. 883. 

 Valvata hranchiata : Gruithuisen, Nova Acta Acad. 



Lcop.-Carol., x, p. 439. 

 Valvata spirorbis, Drap. : C. Pfeiffer, Naturcj. Deufsch. 



Moll., i, p. 100, pi. iv, f. 34. 

 Valvata crislata, Miill. : C. Pfeiffer, i.e., p. 101, pi. iv, 



f. 35. 

 Turbo cristatus: [Brown], Ency. Brit., ed. 6, vi, p. 



457. 

 Helix nana : Megerle von Muhlfeld, Verhandl. Gcscll. 



Naturf. Freunde Berlin, i, stk. 4, p. 220. 

 Valvata planorhis, Draj). : Risso, Hist. Nat. Europ. 



merid., iv, p. 101. 

 Valvata cristata. Brown's MSS. : Brown, Hlust. Conch. 



Brit., ed. 1, pi. xli, f. 66 & 67. 

 Valvata spirorbis, Drap. : Turton, Manual, p. 131, 



f. 115. 



Valvata planorhis, Drap. : Turton, o. c, p. 132, f. 1 16. 



Valvata minuta, Drap. : Turton, o.c, p. 132, f. 117. 



Gi/rorhis, spirorbis, niilii : ] r^ n ■. t i i 



n ,. T I 1- 1 • l^iTZiNGER, Beitr. Landesk. 



(jiirorbis plaporbis, mini: - ^ , '... ^-,„ 

 f<',.,. ..7,- f • I u- Oesterr., m, p. 117. 



('yrorbis nil nut us, mini: | ' 'f 



Valvata (Planelh) cristata, in. (I\Iiill.) : Schlueter, Kurz. 



Verzeichn. Syst., p. 13. 



