Helicops yacu Rossman & Dixon, 1975

Schoeneberg, Yannis & Koehler, Gunther, 2022, Distribution and identification of the species in the genus Helicops Wagler, 1830 (Serpentes, Colubridae, Xenodontinae), Biodiversity Data Journal 10, pp. 69234-69234 : 69234

Helicops yacu Rossman & Dixon, 1975

Diagnosis

Helicops yacu can be distinguished from all congeners by the combination of having an entire nasal scale and intergenials present (for information on references, see Suppl. material 3).

Distribution

Helicops yacu is known only from north-eastern of the Province Loreto, Peru and one locality in north-western Acre, Brazil ( Rossman and Dixon 1975, Nogueira et al. 2019, Fig. 4 ).

Taxonomic remark

In Rossman and Abe (1979), the authors express their doubt that H. yacu represents a valid species. They state the possibility that individuals assigned to H. yacu might represent a subspecies of H. pastazae . However, they state that further specimens are needed for an accurate assessment. No further verification of this hypothesis has been made since then.

Figures

Figure 4. Distribution of Helicops yacu. White circles represent literature reports. For the coordinates and references of the distribution points from literature, see Suppl. material 2.