Data/hora: 03/06/2024 07:39:47

Provedor de dados: | Biota Neotropica
País: | Brazil
Título: | Morphological variation of Philodryas patagoniensis (Girard, 1858) (Serpentes, Dipsadidae) from Brazil, based on the study of pholidosis, coloration and morphometric features
Autores: | Gouveia,Rafaella Vallim; Novelli,Iara Alves; Vieira,Fabiano Matos; Sousa,Bernadete Maria de.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Morphology; Sexual variability; Philodryadini; Brazilian snakes.
Resumo: | Abstract The current study aimed to verify the relationship between the patterns of coloration, the morphometrical features and pholidosis of specimens of Philodryas patagoniensis from Brazil, with the sexual dimorphism of this species. We studied specimens of P. patagoniensis deposited in several herpetological collections from Brazil. A total of 355 specimens were analyzed, of these 145 were males (87 adults and 58 juveniles) and 210 were females (134 adults and 76 juveniles). Adult specimens exhibit sexual dimorphism in snout-vent length, tail length, head length, number of ventral shields, and number of subcaudal shields. The analysis of variance showed that the adult females are significantly longer than adult males, both at snout-vent length and tail length. Females have a greater number of ventral shields (138-210) than males (151-200). The specimens studied also exhibit two distinct patterns of coloration unrelated to geographical or sexual variations.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000100205
Editor: | Instituto Virtual da Biodiversidade | BIOTA - FAPESP
Relação: | 10.1590/1676-0611-bn-2016-0237
Formato: | text/html
Fonte: | Biota Neotropica  v.17 n.1 2017
Fonte: | info:eu-repo/semantics/openAccess