The annals and magazine of natural history : zoology, botany, and geology . ii. Portiou of n trnnsvorse section nearthe hinder end, passing through the Bcolex. cuticle ; M., muscle-lnyers; N., coils of the neck cut across ;P., parenchyme of the bladder; 6., scolex. found to bo continuous at one end with the wall of thebladder at the point of invagination, and at the other end bycareful search may be seen to end blindly in a slight bulbousexj^ansion which contains a scolex. Tho tube, in fact, is 420 Mr. H. A. Baylis on a remarkable simply an extraordinarily elongated neck/ precociouslydevel
The annals and magazine of natural history : zoology, botany, and geology . ii. Portiou of n trnnsvorse section nearthe hinder end, passing through the Bcolex. cuticle ; M., muscle-lnyers; N., coils of the neck cut across ;P., parenchyme of the bladder; 6., scolex. found to bo continuous at one end with the wall of thebladder at the point of invagination, and at the other end bycareful search may be seen to end blindly in a slight bulbousexj^ansion which contains a scolex. Tho tube, in fact, is 420 Mr. H. A. Baylis on a remarkable simply an extraordinarily elongated neck/ precociouslydeveloped within the bladder of the cysticercus. The coils ofthis tube run in various directions (figs. 1 & 2, N.), but inthe main antero-posteriorly. After fixation of the worm itis impossible to straighten out this neck for the purpose ofmeasuring it; but Moniez calculated that in one moderate-sized specimen examined by him it measured centimetres,and the length was probably greater still in larger must, at all events, be many inches in length. Fig-. Cysticercus T(BnicB Grimaldiiy The scolex, as seen by transparencywithin the swollen blind end of the neck. B., bothridium ; P., terminal papilla; S., accessorj sucker. The structure of the scolex (fig. 2, S., & fig. 3) is espe-cially important. Moniez dismisses it with the statementthat it is provided with four suckers and destitute of reality, however, its suckers deserve special are, strictly, bothridia of the type seen in certainCestodes of the family Phyllobotliriidpe—i. e., they iiave theform of elongated flaps (fig. 3, B.) attached to the scolex attheir anterior ends and hanging freely posteriorly. Theiredges are slightly curled inwards at the sides and behind, Cysticercus //o^i a rar«^ l>vli>liin. 4Jl formiuo; i\ aliallow cup. At the anterior end of eachbotliiiiliiini there is a .sinall roiuideil iiiuscuhir accessorysucker (tix hears a slifjhtpapilla (inyzorhynchus) (fig. 3
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Keywords: ., bookcentury1800, bookidser9annalsmaga, booksubjectnaturalhistory
