NORTH A3IERICAN BATRACHIA AND REPTILIA. 61 



Coccyx — The vertebra? of the tail, or those behind tlie sacrum. 

 Condyle — Articuhxting surface of a bone. 

 Connate — United into one body. 



Coracoid — A bone or cartihige on the ventral side of an animal, 

 which helps to form the socket for the articulation of the arm. 



Coriaceous — Leathery. 



Costal — Pertaining to or in relation with the ribs. 



Costal grooves or plicm — Grooves or folds between the ribs. 



Cruciform — Cross-like. 



Dentaries — Distal ossification of the mandible or lower jaw. 



Dejpressed — Flattened. 



Diaphragm — The muscular septum separating the thoracic and 

 abdominal cavities. 



Diapoyhyses — Transverse processes of the vertebrae. 



Digits — Fingers and toes. 



Distal — Remote from point of attachment. 



Dorsal — Pertaining to the back or upper surface. 



Edentulous — Without teeth. 



Emarginate — Slightly notched at ti]). 



Epicoracoid — Equivalent to precoracoid of Huxley. It is a por- 

 tion of the coracoid bone or cartilage lying in front of and 

 more or less separated from the rest by a fontanelle. 



Femoral pores — ^Pores along the under surface of the thigh. 

 Fontanelle — A space between bones occupied by a membrane. 

 Fossa — A depression or excavation more or less cup-shaped. 

 Fronto-parietal — A bone formed by, and occupying the place of, 

 the frontal and parietal. 



G. Gastrosteges — Transverse band-like plates on the abdomen. 

 Gidar fold — A transverse fold across the throat. 

 Hypopophyses — A process from the median line of the under 



surface of the bodies of the vertebrae. 

 Iliac hones — ^That part of the pelvic bones which articulates with 



the vertebrae. 

 Imhricate — Overlapping, like sliingles. 

 Internasals — Plates on top of snout, between nasals. 

 Isodont — Equal toothed. 

 Keel — Ridge. 



