Synophis lasallei (Nicéforo-María, 1950), Niceforo-Maria, 1950

Pyron, R. Alexander, Arteaga, Alejandro, Echevarría, Lourdes Y. & Torres-Carvajal, Omar, 2016, A revision and key for the tribe Diaphorolepidini (Serpentes: Dipsadidae) and checklist for the genus Synophis, Zootaxa 4171 (2), pp. 293-320 : 307

5. Synophis lasallei (Nicéforo-María, 1950)

Range. Amazonian Andean slopes, from central Colombia to central Ecuador, ~ 500–1500m . The type locality ("N of Albán , cen. Cundinamarca Dept., cen. Colombia ") is difficult to georeference accurately for precise location and elevation.

Description. Adult size ~ 270–410mm SVL and ~ 150–210mm TL (assuming> 270mm SVL is adult and MZUTI4181 and USNM233063 have truncated tails), keeled nuchal scales; no nuchal collar; intranasals in contact; usually 2 postoculars, but occasionally 1; 11 infralabials; 7–9 supralabials; 144–156 ventrals; 101–126 subcaudals omitting truncated tails, 111–126 not including holotype MLS/CJP with 101, which may also be truncated but was not examined; and (21–23)-(21–22)-(19–20) dorsal scale-rows with single, heavy keel.

Notes. Some specimens of S. bogerti and S. zamora were referred to S. lasallei by Pyron et al. (2015), prior to the description of those taxa. The only specimen of S. lasallei sequenced here is from the southernmost known population in Ecuador. It is possible that additional cryptic species are present in this taxon, such as the Colombian or northern Ecuadorean populations.