240 DE. T. S. COBBOLD ON THE PARASITES OF ELEPHANTS. 



Mr. Collins reckoned that there were ahout a thousand of these parasites lodged in 

 the colon. 



9. Amphistoma ornatttm, sp. nov. 



Body of a pink colour, plano-convex, hut slightly concave anteriorly, pointed in front, 

 hroadly rounded off behind, and furnished with inconspicuous 

 transversely disposed rugae. Head and neck more or less pro- Ko . y 



nounced. Mouth surrounded by circular folds, which are 

 armed with prominent, regularly arranged, and bluntly pointed 

 papillae. Ventral surface marked by lateral projections, which 

 fold regularly, sometimes showing a V-shaped groove at the 

 base of the neck. Caudal sucker subtcrminal. Reproductive 

 papilla large, and placed well forward. 



Length \ to -A of an inch. . L .. 



° * Outline of Amphistoma ornatum 



Breadth -^ of an inch. ( x 5 diam.). 



Ilab. Intestines of Elephas indicus. 



On the 24th of August, 1876, as already mentioned, I obtained a variety of parasites 

 from one of the herd of performing Elephants that perished at Sanger's Circus. Amongst 

 the parasites were quantities of amphistomes of various shapes and sizes. As all of them 

 were found in the same general situation, I at first concluded that they were of the same 

 species as those sent from India by Colonel Ilawkes. However, subsequent investiga- 

 tion led to the conclusion that, although we obtained two distinct forms of Amphistome 

 from the Circus Elephants, neither of them corresponded with the species received from 

 Southern India. 



When I removed the parasites from the colon, they had the characteristic bright pink 

 colour, and were so transparent that a pocket lens was sufficient to show the general 

 arrangement of the internal organs. These will be referred to when dealing with the 

 next species. 



I separate this form from Ilawkes's Amphistome chiefly on account of its smaller size, 

 its more conical figure, its large reproductive papilla, its slightly concave ventral surface, 

 and, more particularly, on account of the presence of papilla) in the neighbourhood of 

 the head. These papillary eminences are so conspicuous that with a magnifying power 

 of three or four diameters their projecting points are rendered visible. 



10. Ampuistojia papillatum, sp. nov. (Plate XXIV. fig. 11.) 



Body of a bright pink colour, smooth, conical, bluntly pointed in front, broadly 

 rounded off behind, with fine and regularly disposed transverse ruga) forming distinct 

 rings in the region of the head. Caudal sucker subterminal, very large, its cup being 

 armed with numerous large fungiform papillae, closely set, and regularly disposed over 

 the entire surface of the concavity. Reproductive papilla placed well forward. 



Length £ to \ of an inch. 

 Breadth \ to \ of an inch. 

 Sab. Large intestines of Elephas indicus. 



