About Clinus arborescens Gilchrist & Thompson, 1908
The body of Clinus arborescens Gilchrist & Thompson, 1908 is slightly compressed, with a wedge-shaped snout and an acute profile angle. Like many other members of the Clinidae family, this species has a tentacle above each eye. Its first three dorsal spines are elevated to form a crest, with a notch in the membrane between the third and fourth spine. The dorsal spines are capped with clusters of fine cirri. The inner ray of the pelvic fin is thin and positioned close to the second ray, while the third ray is half the length of the second ray. Coloration can vary among brown, red, and green, with 2 to 4 diffuse saddles across the body. One light stripe radiates from the eye, extends past the pectoral fin, and points toward the caudal peduncle. An ocellate spot sits on the edge of the operculum, directly above this light stripe. The eye is positioned slightly behind the edge of the lips. Like all members of the Clinidae family, Clinus arborescens is viviparous.