Cacciali, P., Mee, G., Plettenberg Laing, A., Krause, D., Mclaughlin, C., Montgomery, R. and Smith, P., 2020. Morphological Re-Examination of the Endemic Paraguayan Snake Phalotris nigrilatus Ferrarezzi, 1993 (Serpentes: Colubridae: Elapomorphini), with Notes on Its Ecology and Conservation Status. Current Herpetology, 39(1), pp. 28-37.
The colubrid snake Phalotris nigrilatusis endemic to San Pedro Department (Paraguay) and is known from a very few historical specimens. We analyze morphological variation and geographic distribution of P. nigrilatus on the basis of currently available specimens, including long-overlooked museum material. Also, we briefly report for the first time its live coloration and behavior on the basis of a recently collected individual. Results of morphological and geographic analyses lead to a slight revision of diagnosis and an argument for a higher conservation priority for this species.