Resumen de Molluschi del mar Tirreno centrale. Contributo XII. Segnalazione di due rari Epitoniidae batiali per le coste laziali: (Gastropoda, Ptenoglossa)

Carlo Smriglio, Paolo Mariottini

• English

  Two Atlantic deep-water Epitoniidae, PaPliliscala cerithielloides Bouchet & Warèn, 1986 and Opaliopsis atlantis (Clench & Turner, 1952), are recorded from the Mediterranean Sea. The tWo species bave been collected from some deep-sea coral bank located in the Centrai Tyrrhenian Sea and currently under investigation (SMRIGUO et al., 1996); In the case of P. cerithielloides this is the first Mediterranean record; the relative freshness of the dredged shell suggests its association to the deep-sea coral biocoenosis senilI PÉRÈS & PICARD (1964), but the possibility that it belongs to the accompanying wiirmian tanatocoenosis is not ruled auto The other Epitoniidae, O. atlantis, has been already recorded from the Mediterranean Sea by several Authors (BOUCHET & WARÈN, 1986; BOUCHET & TAVIANI, 1989; MIFSUD, 1993, 1994). Ali these findings strongly suggest that it is a Recent Mediterranean species living in the "coralligenous" bottorns of the deeper part of the continental shelf; due to the good state of the dredged shells, with this report, the putative habitat afa. atlantis is extended to the bathyal coral community and, funhermore, its geographical distribution is enlarged within the Mediterranean basino

• italiano

  Viene segnalato il rittovamento di due specie di Epitoniidae Atlantici di acque profonde, Papu/isca/a cerithie//oides Bouchet & Warèn, 1986 e Opa/iopsis at/antis (Clench & Turner, 1952), provenienti dalle biocenosi a coralli bianchi situare allargo delle coste laziali, Mar Tirreno Centrale. Nel caso di P. cerithie//oides si trarta della prima segnalazione per il Mar Mediterraneo, per la specie O. at/antis, ne viene allargato il suo areale geografico all'interno del bacino mediterraneo ed esreso il range batimettico di titrovamento.