„Das weiße, geftredte Spitzhorn von 5 Gewinden“, 
Schröt., Fluß-Konch. 311. Taf. VIE Sig. 6. (?) 
Buccinum danubiale, Donau: Spighon, Schrank, 
n. 3205. (?) 
11) L. elongata, Drap. 
Buceinum glabrum, Müll. 
M 12) L. mimuta, Drap. 
Buceinum truncatulum, Müll., Schrank. 
Jurenilis — Galba pusilla, Schrank. 
Genus II, Physa, Drap. 
1) Ph. fontinalis, Drap. 
Planorbis bulla, Müll., Schrank. 
— ovatus, Schrank. 
Bulla fontinalis, v. Alt. 
M 2) Ph. hypnorum, Drap. 
Planorbis turritus, Müll. 
Bulla hypnorum, v. it. 
Genus IV. Ancylus, Geoflr. 
M 1) A. fluviatilis, Müll. 
Patella fluviatilis, v. Alt. 
2) A. lacustris, Müll. 
Patella lacustris, Linn., v. At. 
3) A. pilosus, mihi. (Die haarige Napffchnepfe.) 
A. testa subdepresso-convexa, ovato-oblonga, cor- 
nea, grisea vel albescente,. pilis longis sparsa, intus sub- 
nitida; vertice postico, breyi, acuto, sinistrorsum inflexo. 
Long. 2}, lat. 14”, alt. 3". 
Dritte Ordnung. Pectinibranchiata, Cuv. 
Grfte Familie. Turbines, Fer. 
Genus I. Paludina, Lam. 
M 1) P. vivipara, Lam. 
Nerita vivipara, Müll., Schrank. 
Helix vivipara, v. Alt. 
M 2) P. impura, Lam. 
Helix tentaculata, Linn., v. it. 
Nerita jaculator, Müll. 
—  jaculatrix, Schrank. a 
AM 3) P. viridis, Lam, 
Genus. II. Valvata, Müll. 
M ı) V. obtusa, Pfeiff. 
Helix fascicularis, Gmel., v. At. 
Nerita piscinalis, Müll. 
Cyclostoma obtusum, Drap. 
Valvata piscinalis, Lam. 
M 2) V. cristata, Müll. 
Nerita valvata, v. Alt. 
Valvata planorbis, Drap. 
—  eristata und epirorbis, Pfeiff: 
3) V. minuta, Drap. 
Zweyte Familie, 
Genus I. 
1) N. danubialis, Meuke. 
2) N. fluviatilis, Lam. 
Nerita fluviatilis, Lion., Schrank. 
Trochoides, Fer. 
Neritina, Lam. 
Acephala, Cw. 
Erfte Ordnung. -Mytilacea, Cuv. 
Genus I. 
1) A. cygnea, Lam. 
Mytilus eygneus, v. Alt. . 
Juvenilis = Mytilus anatinus, Sturm, VI. 1. Hft. 
Taf. b. 
2) A. cellensis, Pfeiff. 
Mytilus cellensis, Schröt. 
Juvenilis — Mytilus anatinus, Sturm. 
Anodonta, Rrug. 
3) A. intermedia, Lam. 
Mytilus auatinus , Schrank. 
4) A. ventricosa, Pleifl, 
M 5) A. attenuata, 'mihi. (Die ſchmaͤchtige Teich— 
mufchel.) 
A. testa ovato-oblonga, compressiuscnla, margine 
exacuta, transversim striata, flavo-virescente, tenui, su- 
perius postice compressa, elevata; margine dorsuali recto, 
prorsus trans nales propagato; imargine anteriore rotun- 
dato, inferiore late arcuato ; posteriore subacute angulato ; 
natibus planis. Long. 4” 8, alt. 2 3, lat.* 14 3, 
6) A. rostrata, mihi. (Die fhnäbeige T.) 
A. testa ovato-oblonga, subventricosa, griseo-fusca, 
transversim siriata, erassiuscula, superius postice parum 
eompressa, posterius atlenuato-provecta; margine supe- 
riore fere horizontali, anteriore statim e natibus deorsum 
curvyato, semieirculo inferiore prope recto, posteriore 
subrotundato ; natibus longe prorsus positis, retusis. Long. 
4 zu, alt. KT lat. u Rum, ö 
M 7) Aranatinns, Pfeifl. 
Mytilus anatinus, v. At. - 
8) A. trigona, mihi. (Die dreyeckige T.) 
A, testa subtrigono-ovata, brevi, compressiuscula, 
griseo-Iutea, strüs transversis, spissalis aspera, subcrassa, 
superius postice angulato-elevata modiceque compressa ; 
margine anteriore statim a natibus prarupte deorsum flexo, 
rotundato; margine inferiore vix arcuato , posteriore recto, 
deelivi, cum margine inferiore angulum subacutum pro- 
ferente; natibus pralonge prorsus positis, retusis. Long. 
zu, alt. 1” un lat. 1", ’ 
* Unter Tatitud er B 
Pe 
280 - 
