Telmatobius chusmisensis Formas, Cuevas & Nuñez 2006

Diagnosis Can be distinguished from other members of the genus by a combination of features including: (1) Snout-vent length 50.0-63.2 mm; (2) snout short, depressed in lateral view; (3) hind limbs 159.6-179.9% of snout-vent length; (4) in life, irregular apricot spots on dorsum and ventral surfaces of thighs; (5) dorsal surface, flanks, and limbs covered with small, spiculate granules; (6) chest and ventral surfaces of forelimbs and belly with minute, dark brown spines; (7) 8 or 9 supernumerary palmar and plantar tubercles; (8) postfemoral fold absent; (9) toes webbed; (10) tarsal fold thin; (11) outer border of Toe V fringed; (12) tongue subrectangular, almost totally attached (81.2%) to the floor of mouth, posterior border unnotched and free; (13) choanae large, subcircular; (14) all the carpal and distal tarsal elements cartilaginous; (15) pubis cartilaginous, poorly developed; (16) anterolateral process of hyoid plate with distal expansion; (17) prootic ossification limited to anteromedial part of otic capsule.

Only knwon from the type locality.

óleo essencial

Description of holotype Head slightly narrower than body; head length 31.8% of snout-vent length; head broader than long (head width/ snout-vent length = 0.34; head length/ head width = 0.92). Snout rounded in dorsal view; margin of upper jaw flared; snout short, depressed in lateral profile; loreal region flat, granular, with scarce, minute, dark brown spines; nostrils slightly prominent, oriented anterodorsolaterally; internarial distance 19.6% of head width; internarial region slightly convex; nostrils closer to the anterior border of the eye than to terminus of snout; in dorsal view, canthus rostralis distinct. Eye 31.5% of head length, oriented anterodorsolaterally; tympanum absent; supratympanic fold moderately developed, extending from posterior corner of eyelid, terminating dorsal to forelimb; lips thick; maxillary and premaxillary teeth present and embedded within labial mucosa, so that only tips are noticeable; three vomerine teeth (2 on the left and 1 on right), horizontally located between the choanae; choanae large and subcircular; tongue subrectangular; longer (11.3 mm) than wide (8.2 mm), attached approximately 81.2% of its length anteriorly; posterior border unnotched; vocal slits absent. Forelimbs moderately robust, with dermal antebrachial fold; dorsal and ventral surfaces granular, with scarce, minute, dark brown spines. Relative lengths of fingers: III>IV>II>I; lateral fringes present along inner margins of fingers II and III; tips of fingers spherical, approximately equal in size; inner palmar tubercle large, depressed, and fusiform; outer palmar tubercle large, rounded, and protruding; subarticular tubercles large, simple, rounded, protruding; two subarticular tubercles on fingers III and IV, one on fingers I and II; supernumerary tubercles absent; 8 or 9 supernumerary palmar tubercles; nuptial spines on dorsal, ventral and lateral surface of thumb, moderately small, conical, keratinized black in color. Hind limbs long (approximately 171.2% of SVL) and slender; toes long, thin; relative lengths of toes: IV>III>V>II>I; toes webbed; webbing diminishing distally from wide fringes along lateral margins of toes; outer border of toe V fringed, extending approximately to the distal subarticular tubercle; tarsal fold thin, extending 67% of length of tarsus, confluent distally with the fringe along inner margin of toe I; tips of toes rounded; inner metatarsal tubercle flat, narrow, subrectangular; external tubercle conical, small, one-fourth of length of inner metatarsal tubercle; subarticular tubercles rounded, smaller than the tips of toes, distributed on toes as follows: I (1), II (1), III (2), IV (3), V (2); supernumerary subarticular tubercles distally distributed on toes as follows: II (3), III (6), IV (10), V (5Â?6); ventral surface of tarsus with minute, spiculate tubercles (approximately 30); postfemoral fold absent. Skin of head smooth; dorsal surface, flanks and limbs covered with small, spiculate granules; ventral surfaces of hind limbs smooth; chest, ventral surfaces of forelimbs and belly with minute, dark brown spines; jaws with a few spines; Â?Â?bagginessÂ?Â? absent; cloacal opening directed posteriorly at dorsal level of thighs; cloacal opening round, unornamented, covered by a fold of skin. Measurements (in mm): snoutÂ?vent length: 55.7, head length 7.7, head width 17.4, thigh length 27.6, tibia length 26.2, foot length 41.6, eye diameter 6.3, interorbital distance 6.7, nostril-snout distance 4.5, internarial distance 4.9. Color in preservative: Dorsal surfaces of head, body, upper arms and legs dark gray; head and dorsal surface of the body profusely covered with minute, black spots; a few small, white spots irregularly distributed on dorsum and legs; throat and chest cream, belly and ventral surfaces of upper arms and legs light brown; ventral surfaces of thighs with irregular, yellowish spots. Color in life: Dorsal ground color light brown or greenish brown, profusely spotted with minute, black spots; skin of belly white or light yellow; ventral surfaces of thighs light brown; irregular spots on dorsum and ventral surfaces of thighs apricot. Larval morphology Larvae (Stages 28-39) large (total length 38.0-99.0 mm; body length 15.0-37.0 mm), and robust; tail relatively short (1.3-1.7 times body length) and slightly thick; head and body fusiform in lateral view; lateral profile of snout gently rounded; nostrils rounded, not protuberant, situated dorsally, with a thin cutaneous fringe; interocular distance 156-266% of internarial distance; distance between the anterior border of the nostril and terminus of snout two times the distance between the anterior border of eye and posterior border of nostril; eyes anterolaterally situated, diameter equal to internarial distance; width of oral disc 103-119% of interocular distance; oral disc anteroventral, not emarginate; broad rostral gap; mental gap absent; transparent, conical marginal papillae in single row on anterior labium, in double row on posterior labium; intramarginal lateral papillae in supraangular and infrangular regions; intramarginal mental papillae absent; upper jaw sheath wider than tall, well keratinized; jaw sheath with incipient serrations and dark-brown pigmentation; labial tooth formula; 2(2)/3(1). Spiracular tube sinistral, two times internarial distance; aperture oval, diameter 38-57% of eye diameter; proctodeal tube conical, opaque (in 10% formalin), wide; vent opening dextral, not visible in ventral position; distal end ovoid. Dorsal fin not extending onto body; ventral fin starting at the end of proctodeal tube; tail tip rounded; maximum width of dorsal and ventral fins slightly posterior midlength of tail; fin depth slightly exceeding body depth; dorsal surface of body with numerous black minute spots; ventral surface transparent, internal organs visible; posterior third of tail with black spots and blotches; minute black spots near the body; hind limbs with minute melanophores.

DD. Data Deficient.

Telmatobius chusmisensis is a species of frogs in the family Telmatobiidae. It is endemic to northern Chile and is only known from a number of localities in the Tarapacá Region. The specific name chusmisensis refers to its type locality, Chusmisa.