xii 



INDEX. 



Pala?ornis cyanocephala (z. s. l.), 303. 



Pathology. 



The function of Pathological states 

 in Evolution, 237 ; Diagnosis of 

 Helminth infections, 308. 



Pisces : 



On two new Elasmobranch Fishes : 

 systematic, 231 ; Account of the 

 Freshwater Fishes of Great 

 Britain, 303. 



Protospinacidse, fam. n., 232. 



Protospinax, gen. n>, 233. 



annectans, sp. n., 233. 



Python reticulatus (z. s. l.), 309. 



Reptilta : 



Comparison between the lower jaws 

 of the Oynodont Reptiles Gompho- 

 gnathus and Cynognathus : struc- 

 ture, 197; On Hermaphroditism in 

 a Lizard : structure, 223 ; Mada- 

 gascar Frogs of the genus Manti- 

 dactylus : structure, systematic, 



257 ; On Seymouria, the most 

 primitive known reptile : structure, 

 267. 



Structure. 



Mammalia : On a new genus of ex- 

 tinct Muscardine Rodent from the 

 Balearic Islands, 209. 



Eeptilta : Comparison between the 

 lower jaws of the Cynodont Rep- 

 tiles Gompkognathus and Cyno- 

 gnathus, 197 ; On Hermaphro- 

 ditism in a Lizard, 223 ; Mada- 

 gascar Frogs of the genus Manti- 

 daciylus, systematic, 257 ; On 

 Seymouria, the most primitive 

 known reptile : structure, 267. 



Mollusca : Ciliary action in Tleuro- 

 brachia pileas, 263. 



Taurotragus oryx (z. s. l.), 307. 



PRINTED IJY TAYLOR AND FRANCIS, KED LION COURT, FLEET STREET. , 



