Telmatobius fronteriensis Benavides, Ortiz & Formas 2002

Diagnosis Can be distinguished from other members of the genus by a combination of features including (1) mean snout-vent length 39.28 ± 2.56 mm; (2) premaxillary and maxillary teeth present; (3) tympanum absent; (4) vomerine teeth vestigial; (5) skin of dorsum granular, flanks with spicules; (6) nuptial spines in the chest and inner forearm; (7) dorsum (in life) brownish spotted with black blotches; (8) venter (in life) grayish without marbled pattern; (9) stapes absent.

Know only from the type locality.

Marrubii herba, princípio amargo, colina, óleo essencial, saponósido, glucósido, tanino, potássio, cálcio, vitamina C (1)

Description of holotype Adult male, very small (38.62 mm snout-vent length). Head slightly narrower than body; head wider than long; snout short, slightly flattened in dorsal view; almost horizontal in frontonasal region and sloping distally; nostrils barely protuberant, oriented dorsolaterally; internarial distance 13.0% head width; internarial region convex; nostrils situated nearer to tip of snout than to eye; canthus rostralis distinct in dorsal profile. Eyes moderately large, protuberant, situated on top of head, oriented dorsoanterolaterally; eye diameter 33.8% of head length; supratympanic fold absent; tympanum and tympanic annulus absent; lips thin; maxillary and premaxillary teeth present and embebbed within labial mucosa, so that only tips are noticeable. Vomerine teeth not evident externally; choanae, large, well separated, sub-rectangular in shape, situated perpendicular to antero-posterior axis of skull; tongue subrectangular; slightly longer (6.30 mm) than width (5.37 mm); posterior edge plain, unnotched; attached anteriorly through approximately two-thirds to three-fourths its length; posterior border free; vocal slits absent. Forelimbs moderately robust; dermal wrist fold absent; relative length of digits III > II = IV > I; webbing absent; lateral fringes present along inner margin of Finger II only; tips of fingers spherical, approximately equal in size to fingertips; inner palmar tubercle indistinct; outer metacarpal tubercle ovoid, barely visible; distal edge raised; one subcircular, distinct, subarticular tubercle proximally positioned on each finger; distal subarticular tubercle present on Fingers III and IV; Fingers II and III each bearing small, indistinct proximal subarticular tubercle; supernumerary palmar tubercles absent; nuptial spines moderately small, conical, keratinized on ventral and lateral surface of thumb. Hind limb length (foot plus tibia) 110.6% snout-vent length; relative length of toes IV>III=V>II>I; toes webbed; webbing diminishing distally to form narrow fringes along lateral margins of toes; lateral fringes absent on distalmost two phalanges on Toes III an IV and absent from distalmost phalanges only on Toes I, II, V; tarsal fold extending approximately two-thirds length of tarsus, confluent distally with narrow fringe along inner margin of toe I; tips of toes rounded, roughly equal in size to fingertips; inner metatarsal tubercle raised, narrow, ellipsoid; external tubercle subcircular, indistinct, approximately one-third length of inner tubercle; subarticular tubercles round, indistinct, distributed on toes as follows: I(2), II(2), III(2), IV(3), V(2); row of 2Â?3 indistinct supernumerary tubercles present proximally on Toes III and IV. Skin of dorsum granular with small pustules on back and dorsal side of limbs; small spiculate pustules along flanks; ventral skin smooth, with minute horny spicules on chest and inner surface of forearms; skin having loose folds, Â?Â?bagginessÂ?Â? absent; cloacal opening directed posteriorly at dorsal level of thighs; opening round and unornamented. Color in preservative: Dorsum, dorsal surface of head and limbs dull brown-grayish, extensively spotted with irregular darker blotches; whitish mottling along forearms, legs and flanks; throat cream; venter cream with diffuse brownish mottling increasing peripherally; ventral surface of thighs brownish except for a cream irregular preanal blotch; palmar and plantar surfaces of extremities darker than other ventral surfaces; ventral tarsal and plantar surfaces mottled uniformly with white spots; all digital tips pale tan dorsally and ventrally. Color in life: Dorsal ground color light brown or greenish brown, profusely spotted with irregular black blotches; skin of belly gray without marmorations. Measurements of holotype (in mm): snout-vent length 38.62, tibia length 16.74, foot length 25.98, head length 12.36, head width 14.72, interorbital distance 4.96, eye-nostril distance 2.58, internarial distance 2.06, eye diameter 4.19, hand length 9.63, radioulnar length, elbow to proximal edge of outer palmar tubercle 9.95, femur length, from vent to knee 18.32, humerus length, from the body central axis to the elbow 15.58, narine mouth distance 3.23, web length, proximal edge of the inner metatarsal tubercle to distal edge of the III-IV toe web 9.69. Variation Adults are particularly homogeneous in coloration. Ventral surface of the body and limbs varies from immaculate in juveniles to diffusely mottled in adults. Creamy blotches in the proximal region of the thighs are present in some adult individuals only (35.7%). Some males and most females show a distinct and larger outer palmar tubercle as well as more conspicuous subarticular tubercles. Palmar supernumerary tubercles are always absent in this species. Tarsal folds and webbing is less developed in juveniles. Few variation of mensural characters between males and females.

Europa

DD. Data Deficient.