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Profil taxonu

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děrnatka Huzardova
Emarginula huzardii Payraudeau, 1826

říše Animalia - živočichové »  kmen Mollusca - měkkýši »  třída Gastropoda - plži »  řád Lepetellida »  čeleď Fissurellidae - děrnatkovití »  rod Emarginula - děrnatka

Vědecká synonyma

Emarginella huzardii (Payraudeau, 1826)
Emarginula crebrisculpta (Coen, 1939)
Emarginula cusmichiana Brusina, 1866
Emarginula depressa Risso, 1826
Emarginula fissurelloides Monterosato, 1872
Emarginula huzardii var. intermedia Requien, 1848
Emarginula huzardii var. major Monterosato, 1878
Emarginula papillosa Risso, 1826
Patella scissa Salis Marschlins, 1793

Obrázky

Emarginula huzardii - děrnatka Huzardova

Autor: Rolan, E.

Emarginula huzardii - děrnatka Huzardova

Autor: Scaperrotta et al.

Taxon v check-listech zemí*

* Výčet zemí nemusí být kompletní

EN  

Popis

Species with elevated morphological variability. Usually very depressed (the shortest shell of the group with height lower than one third of length). Position of apex, small and arched, is subcentral. Median crack, placed anteriorly, is short and relatively wide. Ornamentation made by radial cords (about 25), alternate between large and small ones, crossed by evident concentric striae. Median band, joining apex to crack, is crossed by arched lamellae. Base arched. Either white or yellowish in colour, bright internally.
After personal comments concerning the animal, Piani (1984) sets this species in the genus Emarginella Pilsbry, 1890. After having compared the types of E. crebrisculpta Coen, 1939, the same author sets this last one in synonymia with huzardii (confirmed by CLEMAM). Emarginula cusmichiana Brusina, 1866, pointed out in Dalmatia (Croatia) by the author, recently collected in Gabes Gulf (Cecalupo et al, 2008), considered as E. huzardii synonym by CLEMAM, is different since it is more oval in outline, it has a larger height and closer longitudinal ribs. Emarginula divae van Aartsen & Carrozza, 1995, species very similar to huzardii, pointed out in the Israeli coasts, considered as a distinct species by CLEMAM, is recognizable due to a different outline and to a different position of apex. In our opinion it could be included in E. huzardii variability field.
Average measures of adult specimens are around 12-15 mm in length by 5-7 mm in width, but there were also collected specimens more than 25 mm in length.
Scaperrotta, M. ,Bartolini, S. & Bogi, C., 2011. Accrescimenti, Vol. 3. Stages of growth of marine molluscs of the Mediterranean Sea. (secondary description)

Rozšíření

Habitat: it lives adherent to rocks in the infralittoral zone. It feeds on sponges (mainly Verongia aerophaba) and detritus. Distribution: it is collected all over the Mediterranean. Relatively common.
Scaperrotta, M. ,Bartolini, S. & Bogi, C., 2011. Accrescimenti, Vol. 3. Stages of growth of marine molluscs of the Mediterranean Sea. (secondary description)

Odkazy a literatura

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [jako Emarginella huzardii Payraudeau, 1826]
Datum citace: 23. listopad 2013
IT Repetto G., Orlando F. & Arduino G. (2005): Conchiglie del Mediterraneo, Amici del Museo "Federico Eusebio", Alba, Italy [jako Emarginella huzardii (Payraudeau, 1826)]
IT Repetto G., Orlando F. & Arduino G. (2005): Conchiglie del Mediterraneo, Amici del Museo "Federico Eusebio", Alba, Italy [jako Emarginula crebrisculpta (Coen, 1939)]
EN Petović S., Gvozdenović S., Ikica Z. (2017): An Annotated Checklist of the Marine Molluscs of the South Adriatic Sea (Montenegro) and a Comparison with Those of Neighbouring Areas, Turkish Journal of Fisheries and Aquatic Sciences 17: 921-934 [jako Emarginula huzardii Payraudeau, 1826]
SP Prats Pi, L. (2002): Gastròpodes marins de la cala de Binissafúller, Menorca (Illes Balears), Spira, 1(2): 21-24 [jako Emarginella huzardii (Payraudeau, 1826)]
SP Tarruella Ruestes, A. (2002): Moluscos marinos de Cap Ras y Llançà (Girona, NE de la península Ibérica), Spira, 1(2): 1-14 [jako Emarginula huzardii Payraudeau, 1826]

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