Pseudoboa Schneider, 1801

Luna, Igor Veronese de, Ugalde, Miguel Relvas, Guimarães, Mariana Rocha Santos, Hoffmann, Kauann, Citeli, Nathalie, Kiefer, Mara Cintia & Hamdan, Breno, 2025, Fig. 3 in Positive association between PTN polymorphisms and schizophrenia in Northeast Chinese Han population., Zoological Studies 64 (20), pp. 141-149 : 8

Pseudoboa Schneider, 1801

1. Dorsal scales in 19 rows; generally 8 supralabial scales; dorsum uniform red with a dark head and white neck ring in juveniles; adult specimens are usually entirely black or can also be black with large white spots all over the body, or even entirely white in adults and juveniles ( Fig. 14a ) ..... Pseudoboa nigra ( Fig. 25a–b )

- Dorsal scales in 17 rows; generally 7 supralabial scales; dorsum red with large vertebral stripe; black head and white neck ring in juveniles; dorsum entirely black or slightly dark coloured in adults ( Fig. 14b ) ........................... Pseudoboa serrana ( Fig. 25c )

Figures

Fig. 14. Dorsal view of the body of preserved specimens of Pseudoboa nigra (a) showing dorsum colour uniform, and Pseudoboa serrana (b) showing dorsum with wide vertebral stripe.

Fig. 25. Representative Dipsadidae Snakes of Rio de Janeiro: a, Pseudoboa nigra black and white morph from Rio de Janeiro/RJ; b, Pseudoboa nigra black morph from Sooretama/ES; c, Pseudoboa serrana from São Paulo State; d, Siphlophis compressus from Guapimirim/RJ; e, Siphlophis longicaudatus from Petrópolis/RJ; f, Siphlophis pulcher from Rio de Janeiro/RJ; g, Sordellina punctata from Brazil; h, Dibernardia affinis from Petrópolis/RJ. ES = Espírito Santo, RJ = Rio de Janeiro, SP = São Paulo. Photos by Breno Hamdan (a, d, e, f, h), Ivo Rohling Ghizoni-Jr (g), Marcelo Ribeiro Duarte (c), Miguel Relvas Ugalde (b).