IngliżShell reaching a very large size, thick and solid, inflated, variable in shape from triangular to hatchet-shaped or subglobular. Dorsal margin usually nearly straight, posterior margin broadly oval to somewhat truncate in outline. Ventral margin broadly convex posteriorly and concave near the umbones, often strongly lobate in medium-sized and large specimens. Outside of valves with 10 to 17 main radial ribs, often bearing scale-like spines, and with weaker interstitial riblets. Internal nacreous layer moderately strong, undivided, occupying the anterior half or 2/3 of valves. Hind margin of posterior adductor scar slightly protruding beyond the nacreous area (protrusion of adductor scar more developed in mature specimens). Colour: outside of shell dark reddish brown to nearly black, usually dull. Shell material semitranslucent, appearing a rich reddish purple when viewed with transmitted light. Interior dark brown to black, iridescent on nacreous area.
Dehra traduzzjoni
Tradott mill-Ingliż minn BING
Din it-traduzzjoni hija purament indikattiva: minħabba l-kwalità limitata tat-test sors, id-deskrizzjonijiet morfoloġiċi huma disponibbli biss bl-Ingliż fil-verżjoni BETA tas-sistema. L-informazzjoni multilingwi se tkun disponibbli fil-ħarġiet futuri.
MaltiQoxra li jintlaħaq daqs kbir ħafna, oħxon u solidi, minfuħa, varjabbli fil-forma minn triangolari għall-forma ta ' hatchet jew subglobular. Marġini dorsali normalment kważi dritta, posterjuri marġni wiesgħa ovali li naqra bil-ponta maqtugħa fil-qosor. Bridges marġini konvessi wiesgħa posteriorly u konvessi ħdejn il-umbones, spiss bil-qawwa lobate fil-kampjuni ta'daqs medju u kbar. Barra l-valvi b ' kustilji radjali prinċipali 10 sa 17, li ħafna drabi jkollhom skala simili spines, u ma riblets aktar dgħajfa interstizjali. Saff nacreous intern moderatament qawwija, indiviż, li jokkupaw l-nofs anterjuri jew 2/3 tal-valvoli. Billi marġni ta ' sabiħa adductor posterjuri toħroġ l barra xi ftit lil hinn mill-qasam nacreous (protrusion ta ' sabiħa adductor aktar żviluppati fil-kampjuni maturi). Kulur: barra l-qoxra skur aħmar kannella li kważi suwed, is-soltu matt. Materjal qoxra semitranslucent, li tidher a Sinjur vjola fl-aħmar meta tkun qed tħares lejha bl-trasmess dawl. Kannella skur interni biex iswed, magħrufa dwar iż-żona nacreous.
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