20 REPTILES. 



from the Ameivas and Safeguards by a collar under the neck, formed of 

 a transverse row of large scales, separated from those on the belly by a 

 space covered with small ones only, like those under the throat; and by 

 the circumstance that a part of the cranium projects over their temples 

 and orbits, so as to furnish the whole top of the head with a bony 

 buckler. 



They are very numerous, and our country produces several species 

 confounded by Linnaeus under the name of Lacerta agilis. The 

 most beautiful is the Grand Lezard vert ocelle, — Lac. ocellata, 

 Daud.; Lacep. I, xx; Daud. Ill, xxxiii; from the south of France, 

 Spain, and Italy. (The Ocellated Lizard). It is more than a foot 

 long, of a beautiful green, with lines of black dots, forming rings or 

 eyes and a kind of embroidery; the young, according to Milne 

 Edwards, is the Lezard gentil, Daud. Ill, xxxi. The Lac. viridis, 

 (The Green Lizard), Daud. Ill, xxxiv, of which the Lac. bilineata, 

 Id. xxxvi, 1, according to the same gentleman, is a variety;— the 

 Lac. septum, Id. lb. 2, of which the Lac. arcnicola, Id. xxxviii, 2, 

 is a variety ; — and the Lac. agilis, Id. xxxviii, 1 , are found in the 

 environs of Paris. The south of France produces the Veloce, Pall., 

 to which must be referred the Bosquien, Daud. xxxvi, 2, and some 

 new species*. 



The Algyres — Algyra, Cuv. 

 Have the tongue, teeth, and femoral pores of the Lizards, but the scales 

 of the back and tail are carinated, those of the belly smooth and imbri- 

 cated. The collar is wanting j. 



The Tachydromes, or Swift Lizards — Tachydromus J, Daud. 



Have square and carinated scales on the back, under the belly, and on the 

 tail; neither collar nor femoral pores, but on each side of the anus is a 

 small vesicle opening by one pore. The tongue is still like that of the 

 Lizards, and the body and tail are very much elongated. 



FAMILY III. 



THE IGUANAS.— IGUANIDA§. 



All the family of Saurians possess the general form, long tail, and free 

 and unequal toes of the Lizards; their eye, ear, penis, anus, are simi- 



* I add, but with hesitation, the Lac.cericea, Laur. 11, 5; argus, Id. 5; terrestris, 

 Id. Ill, 5. The tiliguerta of Daudin is made up of an American Ameiva and the 

 green Lizard of Sardinia, from a bad description by Cetti. The ccerule ocephala, the 

 lemniscata, the quinquelineata, are Ameivas. The sexlineala, Catesb. XLVIII, is a 

 Seps. 



N.B. With due submission to our author, this appears to be a mistake, the 

 sexlineata, Catesb., is most certainly an Ameiva. — Eng. Ed. 



f Lac. alegyra, Lin. 



X Tachus and dromon, (Gr.), Quick-runner. 



§ Iguane, a name according to Hernandez, Scaliger, &c. originating in St. Domingo, 



