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Show 3/2 MR. F. E.. BEDDARD ON THE [Api*. 19. that they both arise in the same way, viz. by exposure and subsequent hardening of the secretion peculiar to the gland ; for on submitting the smooth oval patch to microscopic examination, I was delighted to find that it covered a collection of glands resembling sweat-glands, each gland being tubular and provided with a distinct duct, but occasionally two ducts would unite near the point where they opened on the patch of smooth skin. As many as fifteen of these ducts can be counted in a single fine section through the patch ; therefore the number of the orifices may be estimated at somewhere about seven hundred, and in some cases perhaps as many as a thousand. On examining the forearm of a foetal Lemur catta I found a cluster of long stiff hairs associated with some large sebaceous glands and at once, though hastily, concluded that this must correspond to those which I have just described. On examining the arm of Lemur macaco and Chirogaleus coquereli some similar long hairs associated with glands were also detected. On carefully re-examining the arm of Lemur catta, it turned out that this peculiar gland is aho represented, as seen in fig. 4, which will illustrate its appearance and situation far better than a verbal description. The tuft of hairs with their glands occurs in all the Lemurs I have been able to examine alive in the Society's gardens and in dried skins in the Prosector's room, as well as in Hapalemur. Singularly it is absent in the West-African Lemur, Perodicticus potto. The intention of the paper is two-fold : - 1 . To call attention to tbe glands underlying the smooth raised heap of black skin in Lemur catta ; 2. To draw attention to the tuft of long hairs near it, and its representative in the arm of other Lemurs. Finally I am of opinion that the spur in Lemur catta and the patch of spines in Hapalemur are formed of the dried secretions peculiar to the glands. 3. Contributions to the Anatomy of Earthworms.-Nos. I., II., III. By F R A N K E. B E D D A R D , M.A., F.R.S.E., Prosector to the Society, and Lecturer on Biology at Guy's Hospital. [Eeceived April 1, 1887.] (Plate XXXIII.) I. On the Structure of Eudrilus sylcicola, p. 372. II. Further Note on the Reproductive Organs of Acanthodrilus, p. 387. III. Note on the Genital Seta? of Perichceta houlleti, p. 389. I. ON THE STRUCTURE OF Eudrilus sylvicola. (Plate XXXIII.) Mr. W . L. Sclater has kindly presented m e with a numher of Earthworms which he collected in British Guiana; among these are a few specimens of a species of Eudrilus which proves to be new to science. The worms were carefully preserved and have proved to be in an excellent condition for microscopical investigation. |