68 CATALOGUE OF AMPHIBIA. 
Operculum none. 
Teeth in each jaw. | 
Palate with numerous cross series of teeth on the vomerine bones. 
b.4 17: 
Living in moist clay, rarely in water, but can swim well. 
Sirenina Gray, Ann. Phil. 1825, 216. 
Sirenide Bonap. Amph. Eur. 32. ; ; Hogg, Ann. N. H. 1839. 
Ichthyoida (part.) Latr. Fam. Nat, 1828. 
Sirenes (part.) Fitz. S. R. 35. 
Proteidew (part.) Tschudi, Batr. 96. 
Meantes Linn. S.N. i. addend. 
Synopsis of Genera. 
1. Stren. Fingers four. Gills ciliated. 
2. Psrupoprancuus. Fingers three. Gills not ciliated. 
1. SIREN. 
Head oblong, subquadrate, short. Mouth small. Eyes very small. 
Maxillary and intermaxillary teeth none. Palatine teeth nume- 
rous on the front of outer side, i1.many oblique cross series 
on the vomerine bone (t. 4. f.17.). Tongue small, arrow-shaped. 
rather rounded in front, only free at the tips and front of sides. 
— Gulls three on each side, small; spiracles three on each side 
under the gills.— Feet two, anterior, small. Fingers four.— Body 
cylindrical, elongate.— Skin smooth. 
Siren Linn, S.N.1i. add., Amen. Acad. vii. 311. 1766; Schneid. 
Amph. i. 48.; Scopoli. Int. H. N. 463. 1777 ; Latr. Rept. li. 159. 5 
Daud. Rept. vii. 269. 438.; Cuvier, R. A, ii. 102. ; Merrem, 
Tent. 188.; Gray, Ann. Phil. 1825, 46.; Tschudi, Batr. 69—98. ; 
Fitz. S. R. 35.; ; Holbrook, N. A. Herp. ; Baird, |. c. 1849, 291. 
Sirena Rafin. Annal. Nat. 78. 1818. 
Murena sp. Gmelin, S. N. i. 1136. 
Larve lacertee Pallas 2? Nov Comm. Petrop. xix. 438. 1775 ; Linn. 
S. N. 1. 871. note. 
1. SrrEN LAcERTINA. Siren, or Mud Eel. 
Black, with numerous white specks ; beneath purplish. 
Mud Iguana Ellis, Phil. Trans. lvi. 189. t. 
Murena Siren Gmelin, S. Nat. i. 11386. | 
Siren lacertina Linn. Amen. Acad. vii. 311. 1766; Syst. Nat. add. j 
2.t. 99. f. 2.3; Shaw, Zool. iii. 601.; Baird, 1. c. 291. if 
Siren Penn. Arct. Zool, 325. 
