NATURAL HISTORY. 



immature worms, but the single specimen I found there amply 

 suffices to establish my position. 



(3.) The absence of the following common species of equine 

 parasites should be noted : — Fasciola hepatica, Strongylus micrurus, 

 Filaria Papillosa, Hydatids, and Amphistomes. 



(4.) The numerical preponderance of Ascarides is interesting, 

 for these parasites are, according to my observations, rather rare 

 in domesticated equines in this country. 



(5.) Cysts with small white worms iu the large bowel are rare. 

 They were very numerous and did not resemble the immature Str. 

 tetr acanthus. Indeed they rather reminded one of the Spiroptera 

 found in the stomach. I have not made a detailed examination of 

 the specimens, but if they be Spiroptera from the coecum, this is re- 

 markable, as also would be the absence of Str. tetracanthus, so 

 frequent in domesticated equines. 



(6.) It is interesting to observe that the parasites which infest 

 the wild ass are of the same species as those found in the 

 domesticated horses. 



DESCRIPTION OF THREE NEW SFECIES OF 



HYDROPHIS FROM THE BOMBAY HARBOUR 



AND THE MEKRAN COAST. 



By James A. Murray. 

 Hydrophis Phipsoni. Sp. Nov. 

 Head scarcely distinct from n'eck ; rostral pentagonal, as high 

 as wide; length of nasal 1|, its greatest width ; vertical subtrian- 

 gular in front, tapering behind, and fitting into a nearly triangular 

 furcation between the occipitals ; the length of each occipital is 

 twice its greatest width. 3 — 4 temporals on the side of each 

 occipital, the anterior the largest and separated from the 6th upper 

 labial by an intervening shield. 7 upper labials, the 3rd, 4th, and 

 5th under the eye. 9 small and 2 large lower labials, the 1st on each 

 side in contact behind the triangular mental, the 3rd, 4th, 5th, fth, 

 and 7th have three large shields below them. Two pairs of ehin 

 shields in contact with each other. One pras and one post- 

 ocular, the latter in suture with the superciliary, occipital, 

 anterior temporal, the intervening shield between the 5th and Oth 

 upper labials and the upper edge of the 5th labial. 



