PLATESXV-XVIII TABLE OF CONTENTS PAGE I. INTRODUCTION ... ae re He 405 = os "oe dee soe ee Aaa II. NOMENCLATURE Ae a aes a TT Yr a sae coe 1446 TI. GeroGrapuicat DisTRIBUTION eae se ae Ae ae Sais area 4 7 IV. MorpHoLtocy AND Bionomics-(ryiAXehalt it . 2 ae. ¥3 Sec ae oe +7 es 2 i. 9449 (2) Egg is ome 2 SA eee eee ee eee ge er ers (3) Larva-(ae weehistar 4202 BIBL? STON FE DA, 957 14 S79 (6) 2nd instar cas) Meceate. «9h meee oe ae > 2 Fy es tinh eaeh 9 409 (c) 3rd instar aes ose eae re ee we ms ee Aa (4) Puparium eee ee Sern eet | Sse ee ee AT V. DeveLOPMENT IN ANIMALS-(1) Duration in experiments Se See er on cted abies op een (2) Pathogenicity to animals =e es "yt rahe nie bee ATO (3) The animal hosts in nature... oe 3% = aii ak if: GEaSs (4) The main natural reservoir... ae ve ane ee Pee gh y-(5) Temperature of animal host and rection ow Ie ook ask 2 dod (6) Puparia in nature ot an 8 & 7m Bie 32 HICSS VI. Ace INcIDENCE ask aoe. BAF aoe er as bed oe See vA. O0 VII. Immunity pias +e ? "ap 5ee Bas ae i Sey ack AOD VIII. Srasonat INCIDENCE ... eee wee ane are tr ae
The Report dealt with :1. The prevalence of Urinary Schistosomiasis in the various districts traversed, and among the various tribes examined.2. The discovery of the intermediate snail host; this was proved to be Physopsts c.f. globosa, Morelet.3. The rarity of snails of the genus Planorbis and the absence of Intestinal Schistosomiasis.4. Tribal customs which facilitate the spread of infection.5. Sanitary condition of the villages. 6. Recommendations for the control of the disease.In the present paper, it is proposed to deal with certain morphological observations on the cercariae found in the intermediate host, and with some facts relating to the bionomics of this snail which were not dealt with in the Government Report.Major Connolly, to whom the various snails collected were sent and who kindly identified them, proposes to publish a complete account of all the snails found during the expedition and to include in it all previously known forms found in
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