REPTILES. 
306 
row of black spots on each side ; belly blue-gray. Two feet 
three inches long. Inhabits Europe.— Shaw, III. pi. 101. 
TRIBE III.-NAKED SERPENTS. 
Genus SO.—CiE CILIA— Linnceus. 
Generic Character .—Body cylindrical; skin not protected by 
scales, but having longitudinal folds; eyes extremely small. 
Ccecilia glutinosa .— The White- Sided Cacilia. 
Plate LXXII. fig. 2. 
Head long and tumid; nostrils wide ; deep b»own, with a 
white longitudinal stripe on each side, disposed so as to form a 
slight carina. Twelve inches long. Inhabits South America. 
ORDER IV.—BATRACHIA. 
Heart with one auricle ; body covered with a naked cuticle ; 
povided with lungs in the natural state; but with branchiae, like 
fishes in their immature condition before they are transformed. 
Genus 1.—RANA— Linnceus. 
\ 
Generic Character —Body slender; fore-legs short, feet with 
generally four toes, free; hind-legs long, muscular, feet with 
five toes, usually palmated to the extremities; skin smooth; 
upper jaw provided with a row of small teeth, and an interrupt¬ 
ed transverse one in the middle of the palate; males with a 
thin extensible membrane under the ear, which is inflated with 
air when they croak. 
Rana esculenla. — The Green Frog. 
Plate LXXII. fig. 3. 
Green, spotted with black; back with three longitudinal 
yellow lines ; abdomen clear white. 
Genus 2.—HYLA.— Cuvier. 
Generic Character. —Body somewhat compressed, elongated, 
and smooth ; tongue short and thick ; fore-feet provided with 
four toes, free ; hind-feet with five, all clawless, but in their 
