. Catalogue of the Batrachia Salientia s. Ecaudata in the collection of the British Museum. 2d Amphibians. 10. TKIPEION. 431 10. TRIPRION. Pharvngodon, Cope, Proc. Ac. Philad, 1865, p. 193. Triprion, Cope, Proc. Ac. Philad. 1866, p. 127, and Joum. Ac. Philad. (2) vi. 1866, p. 85. Pupil erect. Tongue subcircular, scarcely free behind, entire. Vomerine teeth, and a series of parasphenoidal teeth. Head a bony casque, with, projecting labial borders. Tympanum distinct. Pingers with a slight rudiment of web; toes webbed, the tips dilated into regular disks. Outer metatarsals united. Omosternum
. Catalogue of the Batrachia Salientia s. Ecaudata in the collection of the British Museum. 2d Amphibians. 10. TKIPEION. 431 10. TRIPRION. Pharvngodon, Cope, Proc. Ac. Philad, 1865, p. 193. Triprion, Cope, Proc. Ac. Philad. 1866, p. 127, and Joum. Ac. Philad. (2) vi. 1866, p. 85. Pupil erect. Tongue subcircular, scarcely free behind, entire. Vomerine teeth, and a series of parasphenoidal teeth. Head a bony casque, with, projecting labial borders. Tympanum distinct. Pingers with a slight rudiment of web; toes webbed, the tips dilated into regular disks. Outer metatarsals united. Omosternum cartilagi- nous ; sternum a cartilaginous plate. Diapophyses of sacral vertebra strongly dilated. Yucatan. 1. Triprion petasatus. Pharvngodon petasatus, Cope, Proc. Ac. Philad. 1865, p. 193. Triprion petasatus, Cope, Proc. Ac. Philad. 1866, p. 127, and Journ. Ac. Philad. (2) vi. 1866, pi. 25. f. 7 & Upper view of head. Lateral view of head. Open mouth. Vomerine teeth in two small groups between the choanse ; para- sphenoidal teeth in a simple series. Head entirely bony, rough ; snout quite flat, projecting far beyond the mouth-opening, the latter being very inferior ; canthus rostralis and superciliary ridges forming an elevated ridge; hinder edge of casque straight, raised; tympanum half the diameter of orbit. Pingers with a slight rudiment of web ; toes short, two-thirds \^ebbed ; disks smaller than the tympanum ; subarticular tubercles moderate. The hind limb being carried for- wards along the body, the tibio-tarsal articulation reaches between the shoulder and the eye. Skin smooth above, granulate beneath. Brownish above, spotted with darker ; head with white punctua- tions ; whitish beneath, immaculate. Male with an external sub- gular vocal sac ; during the breeding-season the inner side of the first finger covered with blackish rugosities. Yucatan. a-b. <3. Yucatan. M. G. A. Boulenger [P.]. c-d. $. Please note that these images are extracted from sc
Size: 1304px × 1917px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectamphibians, bookyear1
