b. Edriophthalmata 



56. Familia Fissurellidae. 



1. Genus Fissurella Lamarck. 



T. clypeifonnis vel depresso-conica, vertice perforata, spira 

 nulla; foramine ovato vel oblongo. 



1. Fissurella costaria Desliayes. T. oblongo- 

 elliptica, antice attenuata, dorso convexo-conica , lateribus sub- 

 depressa, costis radiantibus inaequalibus circa 20, minoribus 

 intercedentibus, strias transversas subsquamulosas decussantibus ; 

 margine crenulato; foramine oblongo, inclinato; albida, plerum- 

 que radiis 8 viridibus picta. — Long. 50, lat. 24, alt. 12 Mm. 



Fissurella costaria Deshayes Coq. foss. Paris p. 20 T. 2, P. 10-12. 

 Philippi Enum. I p.' 116. - Weinkauff Mittelm. p. 390. — 



Monteros. Eu. p. 19. 

 Fissurella italica Defrauce Dict. Sc. XVII p. 79. — BacquoyT.53, 



F. 1-3. 

 Fissurella ueglecta Desh. Encycl. II p 138. — Desh. Lam. VII 



p. 601. — Keeve sp. 3 — Monteros. Nomencl. p. 37. 

 Fissurella mediterranea Gray in Sow. Conch. III. F. 30. 

 Fissurella crassa Costa. F. tectum persicum Costa. 



Hab. Mare mediterraneum. 



2. Fissurella graeca Linne. T. oblonga, depresso- 

 conica, non convexa, antice vix attenuata, costis longitudinali- 

 bus valde elevatis, distantibus, alternantibus lineisque transversis 

 elevatis lauiellitormibus clathrata; foramen ad "^j^ long. situm, 

 inclinatum; cinerea, plerumque varie maculata; margo profunde 

 dentatus, dentibus bitidis, - Long. 25, lat. 14, alt vix 8 Mm. 



Patella graeca Linne ed 12 p. 1202. - (Fiss ) Lam. VII p. 592. — 

 Blainville Man. p. 500 T. 48, F. 3. - Weinkauff Mittelm. p. 392. 

 — Jeffreys Br. Conch III p. 266 T. 59, F. 5. - Monterosato 

 Enum p. 19. - Noraencl. p 37. — Bucquoy T. 53, F. 4-10. 



Fissurella reticulata Donovan Br. Sh. T. 21. F. 3. — Forbes et 

 Hanley II p 469 T. 63, F. 4 5. — Reeve Couch. ic. sp. 68. — 

 Sow. III. Ind. T. 11, F. 1. 



Fissurella raamillata Risso IV p. 257 T. 10, F. 145. 



Fissurella dominicaua, corrugata et recurvata Costa. 



Fissurella occitanica Recluz Rev. zool. Cuv. p. lll- 

 Hab. Mare mediterraneuin et oceanum atlanticum. 



3. Fissurella gibberula Lamarck. T. solida, con- 

 vexa, postice gibbosa, apice anteriore, truncato, foramine elongato, 

 medio contracto, antice attenuato; costellis longitudinalibus 

 numerosis subaequalibus striisque concentricis subtiiiter reticu- 

 lata; apert. ovalis, antice subattenuata, margine subtiliter den- 

 ticulato; latus internum nitens, callo foramen cingente sulco 



