Family Dipsadidae
Borikenophis portoricensis (Reinhardt & Lütken, 1862)
Figure 3F
Materials examined. PUERTO RICO – Arecibo • Mata de Plátano Field Station and Nature Reserve; 18.414, -66.729; 151 m above sea level; Justin Matthew Bernstein, Camilo Andrés Calderón-Acevedo, Pedro Ivo Mônico, Lázaro Willian Viñola-Lopez, J. Angel Soto-Centeno; Individual 1 – found under tarp from an old harp net bat trap on side of trail, ~10 m from the entrance of Cueva de los Culebrones, at 12:52 PM.
Identification. Easily diagnosed from blind snakes (Anillotyphlops , Typhlops ), by its significantly larger size total length and circumference, and enlarged eyes. As a racer, it is not similar in appearance to Xenocrophis orChilabothrus . Borikenophis portoricensis is distinguished from Magliophis by its larger size (Magliophis~ 0.5 m; Borikenophis from this study ~1–1.2 m total length). Borikenophis portoricensis can be distinguished from its congeners by distribution and morphology: B. prymnus is smaller and paler in color and is found in southern Puerto Rico and B. variegatus is endemic to Mona Island.