474 GLASS REPTILIA. 



long chaplets. The young preserve their gills for a longer or 

 or shorter time, and the colours of these animals change ac- 

 cording to age, sex, and season. 



The S. Marmorata, Latreille, attains to the length of 

 eight or nine inches. It is found abundantly in the southern 

 parts of France, the neighbourhood of Montpellier, Fon- 

 tainbleau, &c. It lives habitually in the water, but some- 

 times quits it in the evening, or when the weather is hot or 

 stormy. It sheds rather a foetid odour, and passes the winter 

 in the holes of rotten trees. 



There are many more of these salamanders ; but it would 

 be wholly unproductive of interest to our readers to take up 

 any more time concerning them. 



The genus Amphtuma has been re-established by our 

 author. It cannot be passed over in this place without a few 

 observations. 



In 18S2, Dr. Mitchill sent to the administration of the 

 Museum of Natural History in Paris a very exact description 

 of the animal which forms the type of this genus. In the 

 course of the same year, another description was given of it 

 in a number of " The Medical Recorder," under the name 

 of chrysodonta larvcEformis. Its external character and con- 

 formation, have also been very correctly given by Dr. Harlan 

 in the third volume of the Journal of the Academy of 

 Sciences of Philadelphia, and in the number for June, 1825, 

 of the Annals of the Lyceum of Natural History of New 

 York. The Doctor also gives two excellent figures of this 

 animal. 



From all these descriptions, and from the osteological re- 

 searches of the Baron on the siren and amphiuma, we must 

 be convinced how erroneous is the opinion that these two 

 reptiles are only individuals of different ages, but of the 

 same species. 



The amphiuma means of Garden, to which our author 



