Morphological and morphometric variability of the squid Lolliguncula brevis (Mollusca: Cephalopoda) in Brazilian waters: evidence for two species in the western atlantic?
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 r...
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Academia Brasileira de Ciências
2012-12-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400016 |
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| author | Tânia Zaleski José A. Angel Perez Ana luiza Gandara-Martins |
| author_facet | Tânia Zaleski José A. Angel Perez Ana luiza Gandara-Martins |
| author_sort | Tânia Zaleski |
| collection | DOAJ |
| description | 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.<br>A variabilidade morfológica e morfométrica do pequeno loliginídeo costeiro Lolliguncula brevis foi avaliada ao longo da maior parte de sua amplitude latitudinal no hemisfério sul, ao longo da costa brasileira (8º S - 27º S). Uma homogeneidade na forma foi observada em toda sua área de ocorrência. Em termos de proporções corporais, não foram observados gradientes latitudinais evidentes, mas alguns "morfotipos" locais puderam ser distinguidos. O tamanho e as formas características, incluindo a presença de ventosas na membrana bucal, hectocótilo cerca de 20-40% maior do que o braço oposto ventral e a distinta morfologia da massa dos ovos sugerem que Lolliguncula ocorrentes no hemisférios norte e sul devam pertencer a táxons diferentes. |
| first_indexed | 2024-04-14T05:53:44Z |
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| id | doaj.art-e2fdef04cfc64f9c9d58226366a5bf51 |
| institution | Directory Open Access Journal |
| issn | 0001-3765 1678-2690 |
| language | English |
| last_indexed | 2024-04-14T05:53:44Z |
| publishDate | 2012-12-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-e2fdef04cfc64f9c9d58226366a5bf512022-12-22T02:09:02ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências0001-37651678-26902012-12-018441015102810.1590/S0001-37652012000400016Morphological and morphometric variability of the squid Lolliguncula brevis (Mollusca: Cephalopoda) in Brazilian waters: evidence for two species in the western atlantic?Tânia ZaleskiJosé A. Angel PerezAna luiza Gandara-MartinsMorphological 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.<br>A variabilidade morfológica e morfométrica do pequeno loliginídeo costeiro Lolliguncula brevis foi avaliada ao longo da maior parte de sua amplitude latitudinal no hemisfério sul, ao longo da costa brasileira (8º S - 27º S). Uma homogeneidade na forma foi observada em toda sua área de ocorrência. Em termos de proporções corporais, não foram observados gradientes latitudinais evidentes, mas alguns "morfotipos" locais puderam ser distinguidos. O tamanho e as formas características, incluindo a presença de ventosas na membrana bucal, hectocótilo cerca de 20-40% maior do que o braço oposto ventral e a distinta morfologia da massa dos ovos sugerem que Lolliguncula ocorrentes no hemisférios norte e sul devam pertencer a táxons diferentes.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400016cefalópodesmorfologiaLoliginidaeBrasilcephalopodsmorphologyLoliginidaeBrazil |
| spellingShingle | Tânia Zaleski José A. Angel Perez Ana luiza Gandara-Martins 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 cefalópodes morfologia Loliginidae Brasil cephalopods morphology Loliginidae Brazil |
| title | Morphological and morphometric variability of the squid Lolliguncula brevis (Mollusca: Cephalopoda) in Brazilian waters: evidence for two species in the western atlantic? |
| title_full | Morphological and morphometric variability of the squid Lolliguncula brevis (Mollusca: Cephalopoda) in Brazilian waters: evidence for two species in the western atlantic? |
| title_fullStr | Morphological and morphometric variability of the squid Lolliguncula brevis (Mollusca: Cephalopoda) in Brazilian waters: evidence for two species in the western atlantic? |
| title_full_unstemmed | Morphological and morphometric variability of the squid Lolliguncula brevis (Mollusca: Cephalopoda) in Brazilian waters: evidence for two species in the western atlantic? |
| title_short | Morphological and morphometric variability of the squid Lolliguncula brevis (Mollusca: Cephalopoda) in Brazilian waters: evidence for two species in the western atlantic? |
| title_sort | morphological and morphometric variability of the squid lolliguncula brevis mollusca cephalopoda in brazilian waters evidence for two species in the western atlantic |
| topic | cefalópodes morfologia Loliginidae Brasil cephalopods morphology Loliginidae Brazil |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400016 |
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