A dicephalic yellow anaconda snake, Eunectes notaeus (Serpentes: Boidae), from Southern Pantanal, Brazil

被引:7
|
作者
de Albuquerque, Nelson R. [1 ]
Arruda, Wellinton S. [1 ]
Costa, Arianna S. [1 ]
Galharte, Regiane C. V. [1 ]
Vargas, Lays G. H. [1 ]
Moreno, Iva H. [2 ]
机构
[1] Univ Fed Mato Grosso do Sul, Dept Ciencias Ambiente, Zool Lab, Corumba, MS, Brazil
[2] Univ Fed Sao Carlos, Ctr Ciencias Biol & Saude, Dept Hidrobiol, BR-13560 Sao Carlos, SP, Brazil
关键词
Serpentes; Eunectes; dicephalism; Southern Pantanal; Brazil;
D O I
10.1080/00222931003764105
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
We describe a case of dicephalism in a yellow anaconda snake, Eunectes notaeus, from southern Pantanal, Brazil. The specimen exhibits two heads and two long necks, which are united on the anterior third of the body. Two hearts, three lungs, two livers, and two stomachs are also present. The left heart is larger and more cranial than the right heart although they are in the normal position. Radiographs revealed approximately 64 vertebrae in the right neck, 57 in the left neck, eight in the fusion zone, 202 in the trunk, and 52 in the tail. According to the classification adopted in the present study the specimen herein described is a proarchodichotomous specimen. This is the first record of dicephalism in Eunectes. Further, this snake represents the 28th documented case of dicephalism within the family Boidae and the 1088th case in snakes.
引用
收藏
页码:1989 / 1994
页数:6
相关论文
共 45 条
  • [41] Morphometric and phylogenetic analyses of Serpentirhabdias viperidicus n. sp (Nematoda: Rhabdiasidae) from the lancehead snake Bothrops moojeni Hoge, 1966 (Reptilia: Serpentes: Viperidae) in Brazil
    Morais, D. H.
    Aguiar, A.
    Mueller, M. I.
    Narciso, R. B.
    da Silva, L. A. F.
    da Silva, R. J.
    JOURNAL OF HELMINTHOLOGY, 2017, 91 (03) : 360 - 370
  • [42] Genetic diversity in captive Yellow Cardinals (Gubernatrix cristata) from Southern Brazil: implications for the management and conservation of an endangered species
    Bulau, Sandra Eloisa
    Pecanha, Willian Thomaz
    Martins-Ferreira, Claiton
    de Freitas, Thales Renato Ochotorena
    JOURNAL OF ORNITHOLOGY, 2021, 162 (02) : 579 - 591
  • [43] Immunological Profile of the Yellow Clam Mesodesma mactroides (Mesodesmatidae) from the Southern Coast of Rio Grande do Sul, Brazil
    Silva Santos, Juan Jethro
    Carvalho, Yuri Bovi
    de Alcantara Lopes, Diogo Luiz
    Romano, Luis Alberto
    JOURNAL OF AQUATIC ANIMAL HEALTH, 2016, 28 (01) : 11 - 20
  • [44] Genetic diversity in captive Yellow Cardinals (Gubernatrix cristata) from Southern Brazil: implications for the management and conservation of an endangered species
    Sandra Eloisa Bülau
    Willian Thomaz Peçanha
    Claiton Martins-Ferreira
    Thales Renato Ochotorena de Freitas
    Journal of Ornithology, 2021, 162 : 579 - 591
  • [45] Coccidia of genus Caryospora (Apicomplexa: Eimeriidae) from the long nosed vine snake, Ahaetulla nasuta (Serpentes: Colubridae: Boiginae) from southern India, with a description of C-veselyi sp. n.
    Modry, D
    Koudela, B
    FOLIA PARASITOLOGICA, 1998, 45 (02) : 167 - 169