— 433 — 



Var, = Ostrea sulcata Boni Mus. Caes. p, 103 T. 6, F. 3. — (P.) 



Lam. VII p. 137. — Philippi Eiium. 1 p. 5G. - Sow. Thes. F. 173. 



175. 176. — Reeve Oonch. icoii. sp. 50. — Hidalgo Esp. T. 33, 



F. 2-5, T. 34, F. 2. 



Pecten flavidulus Lam. VII p. 137. 



Pecten griseus Lam. VII p. 138. 



Ostrea maculata Boi'n, P. solaris Chemnitz nec Born, rusticus Risso, 

 citrinus Risso, Ostr. nebulosa Poli. 

 Var. = P. distans Lam. VII p. 139 nec Reeve. 

 Var. = P. unicolor Sow. Thes. F. 56. — Reeve sp. 24, — M. Ch. II 



p. 83 T. 21, F. 5. 

 Hab. mare mediterraueum, 



7. Pecten groenlandiciis Sowerby. T, rotmidato- 

 subelliptica, valde complanata, alba, hyalina, inaequivalvis, valv. 

 sinistra nmlto majore, laevis, striis concentricis parum consj^icuis 

 radiantibusque valde interruptis microscopicis tantum sculpta; 

 auriculae subaequales obtusae, dextra anterior concentrice 

 lamelloso-striata, apice rotundato; sinus byssalis minimus, acu- 

 tus. — Long. 15 Mm. 



Pecten groenlandicus Sowerby Thes. p. 57 T. 13, F. 40. — Sars 

 Norv. p. 23 T. 2, F. 4, - Locard Cat. p. 516. — Jeffreys Pr. 

 Z. S. 1879 p. 560. -■ Verrill. Trans. Connect. V p. 581. 



Pecten vitreus Gray nec Chemnitz lide Jeffreys. 

 Hab, ex oceano arctico usque ad sinum biscayensem, 



8. Pecten hyalinus Poli. T. elongato-ovata , tenuis, 

 vitreo-nitida, vix aequilatera, convexa, subtilissime concentrice 

 striata, costis radiantibus superticialibus planatis interdum fere 

 omnino obsoletis sculpta, cinerascenti-cornea vel succinea ; punc- 

 tis et maculis rufis et albis adspersa; auricuhie aequales; sinus 

 byssahs profundus, angustus, margine infero subtihter denticu- 

 lato. — Alt. 20—24, diam, 25—28 Mm. 



Ostrea hyalina Poli Test. utr. Sicil. T. 27, F. 6, - (Pecten) Philippi 

 En. I p. 80. — Sow. Thes. F. 66. - Reeve sp. 146. - M. Ch. II 

 p. 32 T. 7, F. 3. - Weinkauff Mittelm. p, 262, 



?Pecten pellucidus Lamarck An. s. vert. VI 1 p. 176. — Payr. 

 Corse p. 73. 



Pecten virgo Lam. ed. II vol. VII p. 138. 



Pecten succiueus Risso Eur. mer. IV p. 297 F, 153. — M. Ch. II 

 p. 33 T. 7, F. 4. 



Pecten pulcherrimus Risso Eur. mer. IV p. 298 F. 157. 

 Hab. mare mediterraneum. 



9. Pecten Jacobaeus Linne. T. magna, sohdula, 

 oblongo-ovata, aequilatera, inaequivalvis ; valva sinistra concavo- 

 planata, costis 14 — 16 elevatis, superne rotundatis marginem 

 versus subplanulatis et obsolete liratis, interstitiisque eleganter 

 dense concentrice striatis, ferrugineo-rufa vel rufo-fusca vel 

 fusco-purpurea, aut unicolor aut purpureo-castaneo maculata; 

 valva dextra convexa, costis distincte quadratis et liratis, minute 

 squamatis, interstitiis obsolete striatis, alba, prope nmbonem 



28 



