﻿PARASITES 113 



Within the alimentary tube have been found 

 species of Triclwmonas and Caryospora. 



Bacteria. — Acid-fast baciUi have been described 

 in tubercular lesions found in snakes by Sibley, 

 Gibbs and Shurley, Shattock, Hausemann, and 

 Sambon. 



The so-called " canker," which so frequently 

 develops in the oral cavity of captive snakes, is also 

 a bacterial disease, due to a specific bacterium of 

 thick, rod-shaped form. 



LIST OF PARASITES HITHERTO 

 RECORDED FROM EUROPEAN SNAKES 



TROPIDONOTUS NATRIX, L. 

 ACANTHOCEPHALA. 



Echinorhynchus incequalisy Rudolphi. 



Echinorhynchus polyacanthus, Creplin. 

 Nematoda. 



Strongylus auricularisy Zeder. 



Strongylus catanensis, Rizzo. 



Trichosoma mingazzini, Rizzo. 



Oxysoma brevicaudattim, Zeder. 



Nematoxys commutatus, Rudolphi. 



Ascaris cephaloptera, Rudolphi. 

 Trematoda. 



Opisthorchis caudatum, Polonio. 



Dicroccelium assula, Dujardin. 



Diplodiscus conicum, Polonio. 



Tetracotyle colubri, v. Linstow. 

 8 



