Morphological and morphometric variability of the squid Lolliguncula brevis (Mollusca: Cephalopoda) in Brazilian waters: evidence for two species in the western atlantic?

Anais da Academia Brasileira de Ciências

Tânia Zaleski²  José A. Angel Perez¹  Ana Luiza Gandara-martins¹ 

[1] ,Universidade Federal do Paraná Setor de Ciências Biológicas Programa de Pós-Graduação em Ecologia e ConservaçãoCuritiba PR ,Brasil

关键词: cephalopods;    morphology;    Loliginidae;    Brazil;    cefalópodes;    morfologia;    Loliginidae;    Brasil;   

DOI  :  10.1590/S0001-37652012000400016

来源: SciELO

【 摘 要 】

Morphological and morphometric variability of the small-sized coastal squid Lolliguncula brevis was assessed along the largest part of its latitudinal range in the southern hemisphere, off the Brazilian coast (8º S - 27º S). A general homogeneity in form was found throughout the entire latitudinal range. In terms of body proportions, no latitudinal gradients were evident, but a few local "morphotypes" could be distinguished. The distinctive egg mass morphology, and size and form features, including a hectocotylus 20-40% longer than the opposing ventral arm and the presence of suckers on the buccal membrane, indicated that Lolliguncula from northern and southern hemispheres might comprise two different taxa.

【 授权许可】

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