| Remarks |
This species is found exclusively from a stream tributary of the Horta River, draining the caves Las Sardinas and Caracol, in the upper Carare River drainage, corresponding to the middle Magdalena River basin. Thse caves are found between 2228 m and 2378 m of elevation. The subterranean stream draining the caves have clear waters, the becoming turbid during the rains by heavy loads of clayey sediments. During collection, the physicochemical parameters measured were the following: temperature 14.6°C; pH 7.9 in Las Sardinas Cave and 8.1 in Caracol Cave; total dissolved solids 132 ppm in both caves, and conductivity 231 µ/cm in Las Sardinas Cave and 242 µ/cm in Caracol Cave. This species was collected in a 20 m section of the stream that drains into a sink hole inside the wide opening gallery of Caracol Cave while Las Sardinas Cave has two openings that are interconnected by a superficial stream flowing for around 200 m from the northern opening and inflowing the second southern opening. Specimens were collected at 230 m (dark section) inside the northern opening and in the epigean section of the interconnecting stream (Ref. 119411). |