122 Pelecypoda. — Conchacea. 



Calvi (Payraudeau) ; Livorno (Appelius) ; Napoli (Costa) ; Sicilia : Aci-Castello 

 (Philippi), Catania, rariss. (Aeadas et Benoit), prom. S. Vito (Moxteeosato) • 

 Adria : Zara (Sandei) , Lesina (Roemee , Hellee) , Curzola , Lagosta (Hellee) j 

 Morea (Deshayes). 



Venus Joenia Ben. et Gran. Grillo (uoni. uov. V. discinae Phil. [V. ca- 

 sinaej ex opin. Martensi, = V. cygnus Ar. et Ben., uec Wkff.). Testa obliqufr 

 corrlata , valde iuaequilatera , alba aut radiis roseis aut vinaceis picta ; latere 

 antico lato et rotundato, postico brevi atque augulato ; trausverse lamellosa ; la- 

 niellis couceutricis, iuaequidistantibus, postice erectis, magis proniiueutibus, antice 

 depressis subobtusis, superne teuuioribus, iuferne reflexis et cum interstitiis laevi- 

 bus nec longitudinaliter striatis; rostris fere arcuatis" (Benoit et Granata Grillo). 

 — Vix a praecedeute distiucta species. 



Habit. : Catania, Aci-Trezza, Aci-Castello, Palermo, Napoli (autt.). 



V. Rusterucei Payr. „Testa subrotundata, compressa, albo-ilavescens , costis 

 trausversis lameliosis, elevatis, remotis, margine iuteriore tenuiter dentato, 9 — 10 

 lin. alta"' (Payraddeau). — • Forma juv. V. casinae? 



H a b i t. : Marseille : Riou , Cap Cavaux (Marion) , St. Tropez , Toulon (Doub- 

 lier); Corsica: Ajaccio, Figari, St. Florent, ile Rousse (Payraude.4u). 



V. casinula Desh. (var. lata V. casinae ex opiu. Wkff.). Testa ovata, sub- 

 compressa, eleganter lameUosa, luteo-livida, iutus alba, umbouibus rosea ; lamelli* 

 creberrimis regularibus , postice elatioribus ; umbones minimi , recurvi , pui-pureo- 

 radiati ; luuula fusca, ovato-cordata, in medio producta, marginibus tenue crenatis. 

 Long. 43, lat. 50 ram. — Morea (,,Expeditiou"'). 



4. V. fasciata Donov. {Pcctuncidiis fasciatus da Costa, V. Brongniarti 

 Paye., V. papJiia Mtg., V. (lysera [L.] Scacchi, V. Dumi»gi, Busscharcli, Philip- 

 piac Eequ., V. gradata Desh., V. hiradiata Risso). Testa ovato-triangula, cora- 

 pressiuscula, crassa, inaequilatera, latere postico longiore, subrecto, postice angu- 

 lato, margine dorsali antico concavo; alba, roseo maculata, lamellis concentricis 

 crassis distantibus erectis 7 — 9 sculpta; lunula magna, cordato-oblonga , area 

 lanceolata , subcanaliculata ; cardo in valva dextra dentibus 3 , medio fisso , in 

 sinistra 2 simplicibus; sinus pallialis parvus. — Long. ad 20 mm. 



Distrib.: AtlanticumusqueadNorvegiammeridionalem; Japonicum; Propontis. 

 Habit. : — 30 org. prof. ; litora Hispaniae : Gibraltar (McAndrew, Jefe- 

 eeys), Malaga, Cartagena (McAndrew), Benicarlo, Barcelona, Mataro (Hidalgo);, 

 ins. balear. : Conejera (McAndeew), Iviza, Ciudadela, Cabo Bajoli, Mahon (H17 

 dalgo) ; Alger (Weinkauff) ; litora Galliae (Petit , Dubreuil) , Toulon (Gay) , 

 Nizza (Risso) ; Corsica (Requien) , Valinco , Favone , ins. Lavezi , rar. (Payeau- 

 deau); Napoli (Scacchi, Philippi); Sicilia (Aeadas et Benoit), prom. S. Vito, 

 Palermo (Monteeosato), Palermo, Aci-Castello (Philippi) ; Adria: Venezia (G. 

 V. Maetens), Lissa, Lesina, Curzola, Lagosta (Hellee), Zara (Sandei), Pirano 

 Rovigno, Cherso, Dobrigno, Ossero, Lussin (Beusina, Stossich) ; mare Aegeum 

 (FoEBES, Jeffeeys), Cpcta (Speatt, Jeffreys). 



V. gradata Desh. ex opin. Hidalgo differt a V. fasciata costulis sursum re- 

 versis et denticulo quo costulae partis posterioris termiuautur (= V. paphia Risso, 

 nec L., V. Brongniarti Phil., nec Payr.). Barcelona, Mahon (Hidalgo). 



5. V. ovata Penn. (F. pectimda Lam. , V. radiata Beocchi, V. spadicea 

 Ren., Timoclca ovata Sabs). Testa ovato-triangula, modice convexa, albido-flaves- 

 cens, interdum fusco-variegata, costulis radiantibus 30 — 40 striisque concentricis 

 elevatis decussata, antice rotundata, postice infra producta, margine ventrali sat 

 arcuato, dorsali antico valde declivi, vix concavo, postico minus obliquo, angulo 

 terminato; umbones parvi antemediani; lunula distincta, area obsoleta; cardo 

 utrinque dentibus 3 divergentibus , in dextra antico minimo, postico majore, in 

 sinistra medio majore. — Long. 16 mm. 



Distrib.: Atlanticum ad Norvegiam borealem. — Fossilis in stratis tertiariis. 



