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Ovoviviparity and the structure of the brood pouch inMelanoides tuberculata (Gastropoda: Prosobranchia: Thiaridae)

2005; Wiley; Volume: 263; Issue: 3 Linguagem: Inglês

10.1002/jmor.10307

1097-4687

Frida Ben‐Ami, Alan N. Hodgson,

Marine Bivalve and Aquaculture Studies

Journal of MorphologyVolume 263, Issue 3 p. 322-329 Article Ovoviviparity and the structure of the brood pouch in Melanoides tuberculata (Gastropoda: Prosobranchia: Thiaridae) Frida Ben-Ami, Frida Ben-Ami Department of Evolution, Systematics and Ecology, The Hebrew University of Jerusalem, Jerusalem 91904, IsraelSearch for more papers by this authorAlan N. Hodgson, Corresponding Author Alan N. Hodgson [email protected] Department of Zoology and Entomology, Rhodes University, Grahamstown 6140, South AfricaDepartment of Zoology & Entomology, Rhodes University, Grahamstown 6140, South AfricaSearch for more papers by this author Frida Ben-Ami, Frida Ben-Ami Department of Evolution, Systematics and Ecology, The Hebrew University of Jerusalem, Jerusalem 91904, IsraelSearch for more papers by this authorAlan N. Hodgson, Corresponding Author Alan N. Hodgson [email protected] Department of Zoology and Entomology, Rhodes University, Grahamstown 6140, South AfricaDepartment of Zoology & Entomology, Rhodes University, Grahamstown 6140, South AfricaSearch for more papers by this author First published: 01 February 2005 https://doi.org/10.1002/jmor.10307Citations: 16AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract The freshwater gastropod Melanoides tuberculata broods its young in a pouch located in the anterodorsal region of the head-foot. The wall of the brood pouch is composed of smooth muscle surrounded by connective tissue. The lumen of the brood pouch is incompletely partitioned by trabeculae, formed by extensions or folds in the chamber wall that are composed of smooth muscle, connective tissue, nonciliated squamous epithelial cells, and some storage cells containing lipid and glycogen. The lumen of the chamber also contains a few cells with storage products. The general absence of secretory cells suggests that embryos derive little nutrition from the mother, and therefore embryonic development is probably ovoviviparous. Embryos in various stages of development were found within brood pouches, with later stage embryos varying in size. There was a negative relationship between embryo size and number of embryos in the brood pouch. J. Morphol. © 2005 Wiley-Liss, Inc. LITERATURE CITED Ahmed M, Siddiqui G. 1997. 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Citing Literature Volume263, Issue3March 2005Pages 322-329 ReferencesRelatedInformation