Anatomical study on Myoforceps aristatus, an invasive boring bivalve in S.E. Brazilian coast (Mytilidae)

Papéis Avulsos de Zoologia (São Paulo)

Luiz Ricardo L. Simone¹  Eric Pedro Gonçalves¹ 

[1] ,Universidade de São Paulo Museu de Zoologia São Paulo SP ,Brasil

关键词: Myoforceps aristatus;    biological invasion;    boring bivalve;    Brazil;    anatomy;    systematics;    Myoforceps aristatus;    invasão biológica;    bivalve perfurador;    Brasil;    anatomia;    sistemática;   

DOI  :  10.1590/S0031-10492006000600001

来源: SciELO

【 摘 要 】

The bivalve Myoforceps aristatus (Dillwyn, 1817), also known as Lithophaga aristata, have been recently collected in the coasts of Rio de Janeiro and São Paulo, Brazil; a species that bores shells of other mollusks. This occurrence has been interpreted as an invasion of this species, originally from the Caribbean. The distinguishing character of the species is the posterior extensions of the shell crossing with each other. Because specimens with this character have also been collected in the Pacific Ocean, they all have been considered a single species. However, it is possible that more than one species may be involved in such worldwide distribution. With the objective of providing full information based on Atlantic specimens, a complete anatomical description is provided, which can be used in comparative studies with specimens from other oceans. Additional distinctive features of M. aristatus are the complexity of the incurrent siphon, the kidney opening widely into the supra-branchial chamber (instead of via a nephropore), and the multi-lobed auricle.

【 授权许可】

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