![]() ![]() We aimed to describe the hemipenial morphology of Epictia vellardi (Epictinae, Leptotyphlopidae) based on 16 organs belonging to eight specimens. Since the external morphology is very conserved amongst scolecophidians, internal morphological studies-such as the hemipenial morphology-are useful to unravel several systematic issues within the group. more Scolecophidia (Squamata, Serpentes), commonly known as blindsnakes, wormsnakes or threadsnakes comprises a group of small snakes, with relatively few systematic and morphological studies when compared to Alethinophidia. Scolecophidia (Squamata, Serpentes), commonly known as blindsnakes, wormsnakes or threadsnakes co. Esse ebook pretende ser uma série completa de cinco volumes, que juntos irão abordar os aspectos essenciais da anatomia comparada de vertebrados, a saber: Volume 1: Sistemas Cardiovascular e Respira. O Atlas Fotográfico de Anatomia Comparada de Vertebrados intenciona retratar a diversidade morfológica dos diferentes grupos de vertebrados, especialmente daqueles grupos pouco explorados pelos livros texto ou materiais didáticos. O ensino de Anatomia Animal, associado ou não à disciplina de Zoologia de Vertebrados, ocupa lugar cativo nos currículos de diferentes cursos de formação nas áreas biológicas. A anatomia comparada é utilizada como evidência de evolução, auxiliando na classificação dos organismos, reconstrução da história filogenética das espécies, dedução dos padrões ancestrais, e definição dos processos e padrões que geram e mantém a diversidade morfológica. more Resumo da obra completaO estudo da anatomia dos animais remonta aos primórdios da ciência e persiste até os dias atuais. Resumo da obra completaO estudo da anatomia dos animais remonta aos primórdios da ciência e persi. When comparing populations, our results showed that the divergence of the corresponding external measures was explained by shifts in the intercept of static allometry curves, indicating that differences arose early in development. Linear morphometric analysis did not find multivariate differences between ontogenetic stages or sexes. We have found that allometric trajectories of most skeletal traits remain constant throughout postnatal development. Here, we describe differences at the ontogenetic and population levels in head and limb proportions of the invasive gecko Hemidactylus mabouia, to assess the developmental mechanisms and extrinsic forces associated with morphological diversification during colonization of novel habitats. Nevertheless, development is itself subject to evolutionary forces. more Development determines the range of possible phenotypes that can be produced and exposed to selection and has a major role in the evolutionary trajectories of species. Development determines the range of possible phenotypes that can be produced and exposed to selec. ![]()
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