Riama striata (Peters, 1863)

Pérez-Rojas, Diego A., Escamilla-Quitián, Diego, Estupiñan-Tibaduiza, María Fernanda & Carvajal‑Cogollo, Juan E., 2020, Annotated checklist of the amphibians and reptiles of the Santander highland, Colombia, Check List 16 (3), pp. 611-620 : 617

Riama striata (Peters, 1863)

Materials examined. COLOMBIA • 3 adults 1♂ 2♀, 3 juveniles; Santander, municipality of Sucre, La Pradera, Peña Bonita river ; 05°51ʹ43″N, 073°54ʹ16″W, 2574 m a.s.l.; 20 Aug. 2017; Juan Carvajal leg.; UPTC-R 0589 , UPTC­R 0595 to 0598 , UPTC­R 0600 • 1 adult ♂; Santander, municipality of Sucre, La Pradera, Colegio ; 05° 52ʹ05″N, 073°54ʹ15″W, 2574 m a.s.l.; 25 Jun. 2017; Diego Pérez, leg; UPTC­R 0601 • 1 adult ♂; Santander, munic- ipality of Sucre, La Pradera, Antenas ; 05°51ʹ20″N, 073° 54ʹ14″W, 2574 m a.s.l.; 20 Aug. 2017; Diego Escamilla and leg .

Identification. Our specimens were identified as R. striata based on: mental scales in three pairs; scales 32–37 around midbody; dorsal scales striated, rectangular, in 33–39 transverse rows; lateral scales in 0–3 rows; ventral scales quadrangular, in 22–25 transverse rows and 10–12 longitudinal rows (Burt and Burt 1931).

Remarks. Riama striata occurred in the grassland, where it was found under logs, rocks, and moss. No individuals were detected outside of this habitat, but cryptic movements may make them difficult to detect in other habitats. We noted intra­sex differences, with males white to intense yellow ventrally ( Fig. 8 ) and varying in size as adults; females are generally smaller than males.

Figures

Figure 8. Riama striata. A, B. Females (scale bar in A = 12 mm). C. Ventral coloration of a female. D. Ventral coloration of a male.