DR. T. S. COBBOLD, FURTHER OBSERVATIONS ON ENTOZOA. 357 
some unusually slender forms of Echmorhynchi, which were accompanied by several 
unimportant-looking Nematodes. 
Amongst birds I may mention the occurrence of numerous tape-worm proglottides 
infesting a black-throated species of Amadina; and in the intestinal caeca of the Cheer 
Pheasant (Phasianus Wallichii), as also in those of the Black-backed Kalcege (Euplo- 
comus rnelanotis) , multitudes of the oft-recurring Ascaris vesicularis. The last-named 
bird was bred in the Zoological Society's Gardens. Here also may be noticed t he existence 
of many examples of no less than three entirely different species of Strongylus infesting 
respectively the proventriculus, intestines, and caeca of an Ashy-headed Goose {Bemicla 
poliocephala) . One of these parasitic forms appears to be new ; but, of the others, the 
second is clearly referable to Strongylus tubifex, and the third is probably S. nodularis. 
The intestines of a Tinamou (Tinamus ?) likewise yielded several specimens of a new 
Strongylus. 
From a Starling (Sturnus vulgaris) shot by me on the 10th of January last, I obtained 
a solitary example of the Taenia far ciminalis , the lowermost joints of which, though still 
firmly adherent to the strobila, were amply furnished with mature eggs containing six- 
hooked embryos, having a diameter of about groth of an inch. I have figured one of 
these in the shell (fig. 17), to contrast with those found in the cestode infesting the 
chicken. The last-named parasite I suppose to have been Tcenia infundibuliformis. 
Turning to Mammalia, I have to notice the occurrence of multitudes of Pentastomcs in 
the abdominal cavity and viscera of a Cape Guevi {Cephalophus pygmceus), these being in 
all respects similar to those I have described from the Bubale Antelope. In a Spring-bok 
(Gazella Eucliore) I also encountered two characteristic specimens of the so-called 
Oysticercus tenuicollis ; and in one of the bronchial tubes of the American Red Fox 
{Vulpes fulvus) , from which the new Distome, D. conjunct um (mihi), was procured, there 
were found two specimens of Trichosoma cerophilum. The eggs of the last-named worm are 
scarcely distinguishable in outline from those of Trichocephalus affinis, their longitudinal 
diameter being only a trifle less— that is to say, about the sh t]l of an inch (% 18 )- From 
the common Rat I have secured an example of Tarnia pus ilia, measuring upwards of 20 
inches in length ; and lastly, I may mention some remarkably large Cysticerci infesting the 
abdominal cavity of the ^Ethiopian Wart Hog {Pkacochcerus cethiojneus), and of the Red 
River Hog {Potamochoerus penicillatus). These gigantic Scolices are apparently referable 
to two distinct forms of tape-worm ; but, as their separate description and comparison will 
involve many other points of interest, I do not offer any further particulars respecting 
them in the present communication*. 
* In the recently published ' Proceedings of the Zoological Society' for 1861, Part I., I have since given a minute 
description of these Cysticerci (p. 93, plate xvii.) ; and in a separate paper published in the same Part of the 
' Proceedings ' the new forms of Entozoa above mentioned are described under the following titles -.—Echinorhynckxts 
inflexus from the Turtle ; Cestoideum Amadina from the Amadina ; Strongylus acuticaudatm from the Ashy-headed 
Goose ; and Strongylus spiculatus from the Tinamou. Three of these species are likewise figured in plate xx. 
3b 
9 
