Pseudoboini Bailey, 1967

Waltrick, Camilla Spengler & Giasson, Luís Olímpio Menta, 2021, Taxonomic key to the snakes (Squamata: Ophidia) species of the Itajaí Valley, Santa Catarina, Brazil, Papéis Avulsos de Zoologia 61, pp. 1-15 : 8

Tribe Pseudoboini Bailey, 1967

Members of this tribe are oviparous, have smooth scales, bi-calyculate, and bi-capitate hemipenis ( Bailey, 1967; Zaher, 1999; Zaher et al., 2009). In the Itajaí Valley, Clelia , Oxyrhopus , and Pseudoboa are the representant genera from this tribe (Bérnils et al., 2001). Specimens from the genus Clelia have medium to large size,elliptical pupil, single anal plate, and ontogenetic color variation (Morato et al., 2003). Pseudoboa individuals are morphologically similar to Clelia , but the difference relies on the subcaudals; In Pseudoboa the subcaudals are single, different from Clelia , that possess paired subcaudals (Zaher et al., 2008). Also, they have dorsal scales in 19 rows at mid-body ( Zaher, 1996; Zaher et al., 2008). Oxyrhopus specimens can grow to medium size and show banded or melanic coloration patterns (Bernardo et al., 2012). They present 19 scale rows at mid-body ( Quintela & Loebmann, 2009), 7 or 8 supralabials, 7 to 10 infralabials single anal plate, and paired subcaudal scales (Bernardo et al., 2012).