Aparasphenodon bokermanni Pombal 1993

Diagnosis A large, robust species (holotype 71.1 mm snout-vent length) with a straight, ridged canthus rostralis; vomerine tooth row straight; choanae oriented obliquely; large finger and toe disks.

Known from a few localities in southestern of São Paulo, east of Paraná and northeastern Santa Catarina states.

Description of holotype Body robust; head longer than broad; snout long, its shape slightly rounded in dorsal view and truncate in lateral view; nostrils directed laterally; canthus rostralis with straight ridges; loreal region concave; eye large; tympanum large, nearly rounded; distinct supratympanic fold; skin of dorsal surfaces of the skull co-ossified with underlying bone; tongue small, notched behind; vomerine tooth row straight, between and an teromedial to the choanae; choanae small, slightly elliptical and oblique. Forearm robust, arm slender; fingers long and robust, each bear ing a single, rounded subarticular tubercle; palmar tubercle single, large and nearly elliptical; numerous small supernumerary tubercles; fingers lacking webbing; finger disks large, nearly elliptical; thumb disk smaller than those of other digits, the diameter of disks of digits II and III nearly equal to diameter of tympanum. Legs moderately slender; foot with large, elliptical inner metatarsal tubercle; single, rounded subarticular tubercle on each toe; small supernumerary tubercles; foot webbed; toe disks large, nearly elliptical and slightly smaller than finger disks. Dorsal texture smooth; belly, underfaces of thighs, and anal region glandular, throat weakly grained. Color in preservative of the holotype. Dorsum dark brown, head blackish-brown; arms and legs brown; disks dark brown; sides of body with cream spots; belly and throat grayish-brown; throat with grayish-brown spot. Measurements of the holotype: snout-vent length 71.1; head length 22.5; head wid 21.2; internarinal distance 3.9; eye diameter 6.0; interorbital distance 9.2; eye to nostril distance 11.3; tympanum diameter 4.3; thigh length 34.1; tibia length 34.0; foot length 29.7.

DD. Data Deficient.

Bokermann's casque-headed frog (Nyctimantis bokermanni) is a species of frog in the family Hylidae. It is endemic to Brazil, known only from Juréia-Itatins Ecological Station, another location 10 km away and Rio Verde. Its natural habitats are subtropical or tropical moist lowland forests.