CLASS XV. 

 REPTILES [REPTILIAy. 



The Reptiles are vertebrate animals, mostly oviparous and cold- 

 blooded^, that breathe by lungs. Some breathe at first by gills, 

 which afterwards disappear, when the lungs have been developed; 

 whilst in a few, during the whole life, there are both gills and 

 lungs. 



The spinal column is in this class of very various length, and 

 by this is already indicated the much greater diversity of form by 



' On this class may be consulted : 



Lacep. Quadrup. ovip. et serp., Lacepede, Histoire naturelle des Quadrupedes ovi- 

 pares et des serpens. Paris, 1 789, 2 Vol. 4to, with many (mostly very defective) figures. 



J. E. Schneider Historke AmpMhiorum natur . et literarke Fasc. 11. Jense, 1799, 

 i8or, Svo, with plates. 



Daud. iJgjji. r. M. Daudin, Histoire natur. genercde et particuliere des Reptiles, 

 Paris, An. x. xi. (1802, 1803) viii. Tom. 8vo, with plates. 



Merkem Beitr. B. Mekeem Beitrdge zur Gesch. der Aniphihien. Duisburg, Leipzig 

 und Essen, 1790 — 182 1. 3 Heft, 4to, with coloured plates. 



DuMBR. et BiBRON ErpCtol. A. M. C. Dumeril ct G. Bibeon, Erpetologie genercde 

 ou Hist. nat. complete des Repdiles, ix. Vol. Svo, Paris, 1834 — 1854, avec Atlas de 108 

 PI. 



As systematic works we may add the following : 



J. N. Laurenti Specimen medicmn exMhens synopsin ReptiUum. Cum tab. sen. 

 Viennse, 1768, Svo, — A. Brongniart, Essai d'lme classification des Reptiles. Paris, 

 1805, avec 2 PI. 4to, — B. Merrem Tentamen systematis AmpMhiorum. Marburgi, 

 1820, Svo, — L. J. FiTZiNGER Neue Classification der ReptiUen. Wien, 1826, 4to, and 

 by the same, [Systema ReptiUum, Fascicuhis primus. Amhlyglossce. Vindobonse, 1843, 

 Svo, — J. Wagler Naturliches System der Amphibien. Miinchen, Stuttgart und Tubin- 

 gen, 1830, Svo. 



As collections of figures we may cite : 



H. Schlegel Ahhildungen neuer oder unvollstdndig iehannter Amphibien. Dussel- 

 dorf, 1837 — 1844 (50 col. plates in large 4to, with explanatory text in Svo); many 

 Rep)tilia are figured in the first and second parts of the great work of Seba, Locuple- 

 tissimi Rerum naturalium Thesauri accurata descriptio et iconib. artif. expressio, Amstelod. 

 1734 — 1765) i'^' ^ol- folio; also the Abbildungen zur NaturgeschicJite Brasiliens. by 

 Prince Max of Wied (15 Liefer. Weimar, 1S22 — 1831, folio) contain principally species 

 of Reptiles (only a few Mammals and Birds). Of the German species of Reptiles 

 small but generally good figures are to be found in Stdrm Deutschlands Fauna, 3te 

 Abth. Die Amphibien 6 Hefte. 1797— 1828, i2mo. 



^ On the temperature of Reptiles see A. Dumeril Rech. experimentales sur la tem- 

 perature des Reptiles, Ann. des So. nat., ^ihme S^rie, xvii. 1852, Zool. p. 522. 



