B. maculata has smooth dorsal scales. Adults are uniformly black, both dorsally and ventrally. Juveniles are black dorsally, and red ventrally, with a red nuchal collar.[2]
↑ Santos-Costa, Maria Cristina dos; Outeiral, Arlete Ballestrin; D'Agostini, Fernanda Maurer; Cappellari, Lize Helena (2000). "Envenomation by the neotropical colubrid Boiruna maculata (Boulenger, 1896): a case report". Revista do Instituto de Medicina Tropical de São Paulo42 (5): 283–286. (in English, with an abstract in Portuguese).
Further reading
Boulenger GA (1896). Catalogue of the Snakes in the British Museum (Natural History). Volume III., Containing the Colubridæ (Opisthoglyphæ and Proteroglyphæ), Amblycephalidæ, and Viperidæ. London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiv + 727 pp. + Plates I–XXV. (Oxyrhopus maculatus, new species, p. 110 + Plate VI, figures 2, 2a).
Zaher H (1996). "A new genus and species of Pseudoboine Snake, with a revision of the genus Clelia (Serpentes, Xenodontinae)". Bollettino del Museo Regionale di Scienze Naturali di Torino14 (2): 289–337. (Boiruna maculata, new combination).
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