Color: Uniform lead color in the dorsal side and diffued grey in the sides. Pale white in the ventral side. Fins with no distinctive marks. Upper caudal lobe with a dark distal margin.
First dorsal origin behind pectoral free rear tip. Second dorsal origin behind pelvic fin. Preanal ridges present, interdorsal ridge absent. No eye notches. No papillose gillrakers. No lateral keels in caudal peduncle. Precaudal pit transverse, present in upper and lower side. Hyomandibular pores present at each side, 9 in the right and 10 in the left side. No spiracle. First dorsal base 3.1 times the distance between pectoral and pelvic bases. Labial furrows developed, not restricted to mouth corners but only 0.8% of total length. Preanal snout 2.7% of total length. Teeth similar in both jaws.
Dioecious, internal (oviduct) fertilization, internal live bearers. Viviparous, placental. With 3 to 5 young per litter. Size at birth 20-30 cm TL. Distinct pairing with embrace.