Pectinidae. 75 



(FoKBEs) ; mare Aegeum: Paros, Vathi, Amorgo, Sumboli, Lycia (Forbes). — 

 Fossilis in stratis pliocenicis. 



m 13. P. inflexUS Chemn. (Osfrea wjiexa, clavafa Poli, P. clarafus Sow., 

 F. Dumasii Payk., F. adspersKS Lam., F. seijfemradiatKs var. Wkkf.). Testa tri- 

 gono-orbicularis, solidula, inaequivalvis, aequilatera, valvis subtilissime granulato- 

 striatis , ad marginem striato-sulcatis ; valva sinistra concavo-depressa , costis 5 

 compressis radiata, aurantio-rufescens, maculis pnnctisque pallidis lentiginosa, inter- 

 dum albida , purpureo maculata , valva dextra convexa , alba , costis 5 latis ob- 

 tusis; margo inflexus crenulatas; auriculae inaequales parvae. — Alt. 28 mm, 

 long. 26 mm. 



H a b i t. : Cartagena, Mataro (Hidalgo) ; litora Galliae (Petit, Dubreuil), 

 Marseille, Riolan. Eiou, Marsilli (Marion), Porquerolles, Toulon (Locakd); Corsica: 

 Ajaccio, S. Bonifacio, Santa Giulia, Algaiolo (Payraudeau); Napoli (Poli, Ara- 

 DAS et Benoit) ; Sicilia: prom. S. Vito, Palermo (Monterosato) , Sciacca (Del 

 Prete); Adria: Zara (Sandri) ; Morea (Deshayes) ; raare Aegeum, Amorgo, Milo 

 (Forbes). 



14. P. similis Laskey (F. fumidus Turt., F. pygmaeus Phil., nec Mcn- 

 ster). Testa minuta, suborbicularis, longior quam altior, utrinque expansa, tenuis, 

 laevissima, inaequivalvis, valva sinistra majore dextram includente, nivea, rubro 

 aut fusco striata aut maculata; auriculae latiusculae obtusae, anteriores paullo 

 minores; sinus byssalis brevis, acutus. — Long. 8 mm. 



Distrib. : Atlanticum boreale. — Fossilis in stratis pliocenicis et qua- 

 ternariis. 



Habit. : Gibraltar, Cartagena (Jeffreys); ins. balear. : Conejera al. (Mc 

 Andrew), Mahon (Hidaloo); Alger (McAndrew), Rasel Amush (Jeffrkys) ; litora 

 Galliae (Petit) ; Napoli (Acton) ; Sicilia (Philipi-i), prom. S. Vito Palermo (Monte- 

 ROSATo); „x\dventure Bank" (Jeffreys) ; Pantellaria, Malta, litora Tunetana 

 (McAndrew); Adria: Isola grossa, 40 — 50 m (Brusina, Clecak), Lesina (Bru- 

 sina) ; mare Aegeum (Jeffreys), Cerigo, Serpho-Pulo, Amorgo, Macri (Asia minor) 

 (Forbes). 



15. P. striatus 0. F. MtJLL. (Osfrea fuci Gm. , F. retiadafus Chemn., 

 F. aculeatns Jeffk. , F. Landshnrfii Fokb. , F. rimnlosns Phil.). Testa suborbi- 

 cularis , medio convexa , tenuissima , fragilis , subaequivalvis , radiatim subtiliter 

 costulata, costulis tenuissimis in valva dextra interdum obsoletis, distanter squa- 

 mosis, concentrice irregulariter subtilissimeque striata, rufo-fusca, albo maculata; 

 auriculae latiusculae, inaequales, posteriores dimidio breviores; sinus byssalis pro- 

 fundus. — Long. 17 mm. 



D i s t r i b. : Atlanticum boreale. 



Habit. : Barcelona (Hidalgo); Conejera (McAndrew); litora Galliae (Du- 

 breuil), Marseille, Cap Cavaux (Marion); Corsica (Tibkki); Sicilia (Jeffkeys). 



16. P. Testae (Bivona) Phil. (fF. inconiparaftdis Risso, fF. vifrens Risso, 

 nec Chemn., F. aculeafns Sow., F. furfirns Lov., F. sfriatns var. Forb. et Hly., 

 Falliolum Tcstae Monter.). Testa suborbicuhiris, compressa, tenuissima, laevissima, 

 sub lente tantum striis tenuissimis, in valva sinistra granuh)sis sculpta, auriculis 

 subinaequalibus ; sinus byssalis profundus, acutus ; fulvo et albido varie picto. — 

 Diam. 1 1 mm. 



Distrib. : Atlanticum usque ad Norvegiam. — Fossilis in stratis pliocenicis. 



Habit.: .30 — 160 p. ; litora Hispaniae : liarcelona, Mataro (Hidalcio); 

 ins. balear. : Mallorca, Mahon (Hidalgo) ; Alger (Weinkaufk), usque ad 2000 m. 

 prof. (A. M. Edwakds), Jijele, Benzert (Jeffreys) ; litora Galliae (Petit, Du- 



