1893.] NATURAL SCIENCES OF PHILADELPHIA. 233 



time, a much wider geographical range, a very similar species, the so- 

 called Andrias scheachzeri, living in Miocene times in Europe. This 

 celebrated fossil, discovered in the (Enigen quarries of Switzerland 

 and described in 1726 by the Swiss physician, Scheuchzer, 20 is so evi- 

 dently a batrachian that it is astonishing that it should ever have 

 been regarded, at least by a physician, as the remains of a man — of 

 one who had witnessed the deluge, " Homo Diluvii testis," and that 

 it should have been reserved for Cuvier 21 to have correctly inter- 

 preted its nature. 



Explanation of Plates. 

 Plate V. 

 Fig. 1. — Bulbus arteriosus and branchial arteries. 



ba, bulbus arteriosus. 



1, 2, 3, branchial arteries. 



4, pulmonary artery. 



a, aorta. 

 Fig. 2.— Heart. 



Si sinus. 



bristle a indicates course of pulmonary vein. 



bristle b indicates course of sinus. 



L A, left auricle. 



R A, right auricle. 



V, ventricle. 



Plate VI. 

 Fig. 1. — Urogenital apparatus, anterior view. 



vd, vas deferens. 



T, testicle. 



dd', ducts. 



W, Wolffian bodies. 



R, rectum. 



B, bladder. 



cl, cloaca. 



Plate VII. 



Fig. 1. — Urogenital apparatus, posterior view; letters as in Plate 



VI. 

 Fig. 2. — Urogenital apparatus (diagrammatic), dd' ducts ; remaining 



letters as in Plate VI. 



20 Philosophical Transactions, 1726, Vol. 34, p. 38. Homo Diluvii testis et theo- 

 skopos, Tiguri, 1726. 



21 Ossemens Fossiles, Paris, 1836, Tome Dixieme, p. 360. 



16 



