New morphological data on Solariella obscura (Trochoidea: Solariellidae) from New Jersey, USA

Anatomical data on Solariellaobscura (Couthouy, 1838) are presented and analyzed. The main features of this species, when compared with other known trochoids, are: ctenidium with thick lamellae; enlarged ureter (that may indicate sexual dimorphism) instead of a modified urogenital papilla; odontopho...

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Main Authors: Ana Paula S. Dornellas, Luiz R.L. Simone
Format: Article
Language:English
Published: Sociedade Brasileira de Zoologia 2015-04-01
Series:Zoologia (Curitiba)
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200162&lng=en&tlng=en
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author Ana Paula S. Dornellas
Luiz R.L. Simone
author_facet Ana Paula S. Dornellas
Luiz R.L. Simone
author_sort Ana Paula S. Dornellas
collection DOAJ
description Anatomical data on Solariellaobscura (Couthouy, 1838) are presented and analyzed. The main features of this species, when compared with other known trochoids, are: ctenidium with thick lamellae; enlarged ureter (that may indicate sexual dimorphism) instead of a modified urogenital papilla; odontophore very different from other trochoids such as Calliostoma, Agathistoma, Monodonta, and Gaza, with short m6, large mj and m4 pairs and absent m8 pair and posterior cartilages; esophageal valve surrounding the odontophore ventrally; anterior and mid-esophagus composed of several thin folds and a very wide cerebral ganglion. Solariellaobscura differs from Solariellavaricosa (Mighels & Adams, 1842) by having lower spire, spiral cords weaker on the base and axial rib oblique. There are no differences between S.obscura and S.varicosa in the external morphology and radula. These internal anatomical data are described for the first time for a solariellid and might improve our understanding of the relationships within this taxon.
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spelling doaj.art-8029b7f64f9a4b14b61105cb71790a022023-01-02T05:16:15ZengSociedade Brasileira de ZoologiaZoologia (Curitiba)1984-46892015-04-0132216217010.1590/S1984-46702015000200008S1984-46702015000200162New morphological data on Solariella obscura (Trochoidea: Solariellidae) from New Jersey, USAAna Paula S. DornellasLuiz R.L. SimoneAnatomical data on Solariellaobscura (Couthouy, 1838) are presented and analyzed. The main features of this species, when compared with other known trochoids, are: ctenidium with thick lamellae; enlarged ureter (that may indicate sexual dimorphism) instead of a modified urogenital papilla; odontophore very different from other trochoids such as Calliostoma, Agathistoma, Monodonta, and Gaza, with short m6, large mj and m4 pairs and absent m8 pair and posterior cartilages; esophageal valve surrounding the odontophore ventrally; anterior and mid-esophagus composed of several thin folds and a very wide cerebral ganglion. Solariellaobscura differs from Solariellavaricosa (Mighels & Adams, 1842) by having lower spire, spiral cords weaker on the base and axial rib oblique. There are no differences between S.obscura and S.varicosa in the external morphology and radula. These internal anatomical data are described for the first time for a solariellid and might improve our understanding of the relationships within this taxon.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200162&lng=en&tlng=enAnatomycomparative dataNorth Atlanticredescription
spellingShingle Ana Paula S. Dornellas
Luiz R.L. Simone
New morphological data on Solariella obscura (Trochoidea: Solariellidae) from New Jersey, USA
Zoologia (Curitiba)
Anatomy
comparative data
North Atlantic
redescription
title New morphological data on Solariella obscura (Trochoidea: Solariellidae) from New Jersey, USA
title_full New morphological data on Solariella obscura (Trochoidea: Solariellidae) from New Jersey, USA
title_fullStr New morphological data on Solariella obscura (Trochoidea: Solariellidae) from New Jersey, USA
title_full_unstemmed New morphological data on Solariella obscura (Trochoidea: Solariellidae) from New Jersey, USA
title_short New morphological data on Solariella obscura (Trochoidea: Solariellidae) from New Jersey, USA
title_sort new morphological data on solariella obscura trochoidea solariellidae from new jersey usa
topic Anatomy
comparative data
North Atlantic
redescription
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200162&lng=en&tlng=en
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