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Show 58 MR. H. B. FANTHAM ON A NEW SPOROZOON. [M a y 3 6 , A. hottentottus, but markedly narrower across the brain-case ; and the zygomata less thickened at their posterior base. As a result, the two skulls being of about the same length, the general outline was much less broadly triangular. Muzzle and interorbital region narrow and delicate. Outer edge of permanent teeth narrow antero-posteriorly, and of milk-teeth broad with conspicuous cusps, as shown in the Plate. The anterior premolar triangular, not extended transversely as in A. obtusirostris and chrysillus. Dimensions of the type, measured in the flesh :-Head and body 129 mm.; hind foot 13. Skull-greatest length 28, basal length 22'6 ; greatest breadth across brain-case 16'6 ; greatest height 12Mi; interorbital breadth 8 ; front of i1 to back of nr 105 ; palate, breadth across premolars 8-l. An adult female had a head and body length of 118 mm.; greatest skull length 25'7. Hob. Knysna, S. Cape Colony. " In Forest." Type. Old male. Original number 1021. Collected 25 January, 1905, by C. H. B. Grant, and presented to the British Museum by Mr. C. D. Rudd. Ten specimens examined. This handsome little species was not only a very interesting discovery in itself, but the fine series of it obtained by Mr. Grant, of both sexes and different ages, had enabled Mr. Thomas to identify with confidence the milk and permanent dentitions of the specimen figured in the plate illustrating his paper on the Zululand Mammals collected by Mr. Grant. No proper knowledge of the respective characters of the two dentitions had hitherto existed. Mr. H. B. Fantham, B.Sc., F.Z.S., exhibited microscopic slides of and made remarks upon Lankesterella tritonis, n. sp., a Ha?mogregarine parasitic in the red blood-corpuscles of a Newt, Triton cristatus (Molge cristata). Blackboard sketches were made illustrating the life-history of the parasite so far as was known. This parasite was found some time ago by the exhibitor while working in the Zoological Laboratory, University College, London. Afterwards his observations were independently confirmed by Dr. A. C. Stevenson. Up to the present the trophozoite and schizogonous stages only had been seen, and the sporogony probably took place in an intermediate host. Schaudinn's and Siegel's recent observations on the sporogony of allied parasites in the lizard and water-tortoise were quoted in support of this view, and mention was made of the inaccuracy of Hintze's account of the sporogony of L. ranarum in the intestine of the frog, the cysts therein mentioned probably being Eimerian stages of a Cocciclian. The trophozoites, vermiform in shape, were apparently 5 p to G p in length, and slightly over 1 H broad. They became U-shaped |
