Tematica Crostacei

Phylum: Arthropoda Lar, 1904

Subphylum: CrustaceaBrünnich, 1772

Classe: Malacostraca Latreille, 1802

Ordine: Decapoda Latreille, 1802

Famiglia: Grapsidae MacLeay, 1838

Genere: Pachygrapsus Randall, 1839

Descrizione

Un esempalre adulto misura 4-5 cm. Ha un carapace quadrangolare e leggermente convesso, di colore bianco giallastro sul ventre, bruno-violaceo sul dorso, con macchie giallo-senape, che gli conferiscono l'aspetto marmorizzato a cui deve il nome. I maschi hanno chele più sviluppate delle femmine.

Diffusione

È diffuso nel mar Mediterraneo e nel mar Nero nonché nelle zone costiere dell'Atlantico orientale, comprese le isole Canarie. Popola i fondali rocciosi, dal piano mesolitorale sino a pochi metri di profondità.

Sinonimi

= Brachynotus marmoratus Olivi, 1792 = Cancer femoralis Olivier, 1791 = Cancer marmoratus Fabricius, 1787 = Cancer marmoratus Olivi, 1792 = Grapsus savignyi De Haan, 1835 = Grapsus varius Latreille, 1803 = Leptograpsus bertheloti H. Milne Edwards, 1853 = Leptograpsus marmoratus Fabricius, 1787 = Pachygrapsus pubescens Heller, 1865.

Bibliografia

–Peter K. L. Ng; Danièle Guinot & Peter J. F. Davie (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology. 17: 1-286.
–Rose Edwards (2005). "Pachygrapsus marmoratus: a marbled rock crab". Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme. Marine Biological Association of the United Kingdom.
–A. M. Vaccaro & C. Pipitone (2005). "First record of Pachygrapsus transversus (Gibbes, 1850) (Brachyura, Grapsidae) in Italian waters" (PDF). Crustaceana. 78 (6): 677-683.
–S. Cannicci; M. Gomei; B. Boddi; M. Vannini (2002). "Feeding habits and natural diet of the intertidal crab Pachygrapsus marmoratus: Opportunistic browser or selective feeder?". Estuarine, Coastal and Shelf Science. 54 (6): 983-1001.
–Ray W. Ingle & Paul F. Clark (2006). "First reported occurrences of the marbled crab, Pachygrapsus marmoratus (Crustacea: Brachyura: Grapsoidea) in southern coastal waters of the British Isles" (PDF). JMBA2 Biodiversity Records.
–Jean-Claude Dauvin (2009). "New record of the marbled crab Pachygrapsus marmoratus (Crustacea: Brachyura: Grapsoidea) on the coast of northern Cotentin, Normandy, western English Channel". Marine Biodiversity Records. 2: e92.
–Ana Silva; Diana Boaventura; Augusto Flores; Pedro Ré; Stephen J. Hawkins (2004). "Rare predation by the intertidal crab Pachygrapsus marmoratus on the limpet Patella depressa". Journal of the Marine Biological Association of the United Kingdom. 84 (2): 367-370.
–Ana Catarina Ferreira Silva; Sónia Brazão; Steve J. Hawkins; Richard C. Thompson; Diana M. Boaventura (2009). "Abundance, population structure and claw morphology of the semi-terrestrial crab Pachygrapsus marmoratus (Fabricius, 1787) on shores of differing wave exposure". Marine Biology. 156 (12): 2591-2599.
–Halil Sen (2007). "Food preference of Eledone moschata Lamarck, 1799 (Cephalopoda: Octopodidae) in captive conditions" (PDF). International Journal of Natural and Engineering Sciences. 1 (2): 29-31.
–Inês C. Silva; Natacha Mesquita; Christoph D. Schubart; Maria Judite Alves; José Paula (2009). "Genetic patchiness of the shore crab Pachygrapsus marmoratus along the Portuguese coast". Journal of Experimental Marine Biology and Ecology. 378 (1-2): 50-57.

	Data: 15/10/1966 Emissione: Granchi e conchiglie Stato: Romania Nota: Emesso in una serie di 8 v. diversi