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Show 294 DR. T. s. COBBOLD O N ENTOZOA. [Mar. 7> 3. Notes on Entozoa.-Part IV. By T. SPENCER COBBOLD, M.D., F.R.S., F.L.S., Correspondent of the Academy of Sciences of Philadelphia. [Received February 14, 1876.] (Plate XXI.) The present series comprises a variety of new and interesting parasites, all of them belonging to the Nematode Order. 12. ASCARIS CORNELYI, nov. sp. (Plate XXI.) On the 21st of December, 1875, I was requested to identify a ne-matoid which Mr. Sclater had only a few days previously received from Mr. J. M . Comely, C.M.Z.S. As stated on the label of the bottle, the worms had been removed from the intestines of a Vulturine Pintado (Numida vulturinai). At once making a pocket-lens examination of the parasites, I remarked that the species was probably new to science ; and on the 30th of the same month this opinion was confirmed by careful investigation. In a more or less marked manner its characters differed from allied forms infesting fowls and game birds (such as Ascaris compar, A. perspicilla, A. inflexa, he.); consequently I have ventured to name the worm A. cornelyi, after the discoverer. The bottle contained eleven specimens in all, eight of them being of the male sex. I think the worms must have been unduly shaken during transmission ; for not only were they coiled together in a very complicated way, but at least three of the males had their exserted spicules broken. From the best examples I gathered the following diagnostic characters:-Head entirely naked and destitute of appendages, the dorsal lip being conspicuously larger than either of the two ventral lips ; body much contorted and rather suddenly narrowed at either end, especially towards the head in the female ; tail of the male appearing diagonally abrupt when seen in profile, and furnished with a sharply pointed subulate process at the tip, also presenting on either side a feebly developed but distinctly four-lobed membrane ; spicules two in number, long and slender, unequal, the exserted portion of the longer one measuring fully -j^- of an inch ; tail of the female with an ensiform profile, sharply pointed and furnished with an extremely minute, distinct but scarcely separable process at the tip. Males up to f of an incli in length, the females being very nearly an inch long, with abreadthof y^of aninch. Of the accompanying figures, two of them illustrate the characters of the head and tail of a female worm, whilst the others show respectively right and left profile views of the tail of the male as exhibited by the two most perfect specimens (Plate X X I . figs. 1-4). The arrangement of the spicules in the fourth figure is clearly the result of artificial twisting. 13. STRONGYLUS HEMICOLOR, nov. sp. (Plate XXI.) Nearly ten years back I received a batch of parasites from the |
