IUCN threat status:

Least Concern (LC)

Comprehensive Description

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Description

Adult males are 21 to 25 mm SVL while adult females range from 25 to 32 mm. Distinguishing characteristics of this species include the presence of vomerine teeth; long snout with an obtuse profile; a white parietal peritoneum, but colorless hepatic peritoneum; absence of free prepollex, humeral hooks, and humeral spines; presence of well-developed fleshy fringe on posterior and ventral edges of lower arm, hand, lower hindlimb, and foot; green bones in life; dorsal coloration a deep blue-green covered with many raised, moderate-sized yellowish-white tubercles (Savage and Starrett 1967).

General characteristics of this species are (1) head rounded in outline from dorsal view; (2) vomerine teeth in series between choanae; (3) tongue small and round; in males paired vocal slits posterior and laterally positioned to tongue; (4) snout long, obtuse in profile; nostrils positioned laterally, inclined upward; (5) eye orbit round, twice diameter of tympanum; pupil horizontally elliptical; membranes transparent; directed forward, completely visible from frontal view, interorbital space about half of head length; (6) tympanum round, directed laterally; (7) canthus rostralis rounded, loreal region slightly concave; (8) distinct fleshy fringe along posteroventral edge running from elbow to disc of finger IV; (9) undersides of palms and fingers smooth, with lateral fleshy margins; (10) palmar tubercle smooth and round, ulnar tubercle elongate; (11) discs wide and truncate on fingers, small and round on toes; (12) webbing between fingers III and IV, and on all toes; (13) hindlimbs long, also with distinct fleshy fringe posteroventral from heel to disc of toe V; (14) elongate inner, but not outer metatarsal tubercle present; (15) throat and chest smooth; in males, wrinkled at single external vocal sac; (16) venter and thigh undersides strongly granulated; (17) below anus, distinct fringe-like ridge forms 2 raised tubercles and a series of small tubercles (Savage and Starrett 1967).

Dorsal surface deep blue-green with many yellow-white to bright yellow spots; iris ivory; ivory white border along lip, arm and leg fringes; white subanal ornamentation; ventral side pale yellow-white; abdominal region transparent revealing visible white parietal peritoneum and white viscera (Savage and Starrett 1967).

Tadpoles have long tails, elongate bodies, and are pale in color (Savage and Starrett 1967).

The specific name euknemos derives from Greek and means "with beautiful legs." It refers to the fringed hindlimbs.

Cochranella euknemos belongs to the prosoblepon group.

A Spanish-language species account can be found at the website of Instituto Nacional de Biodiversidad (INBio).

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