A revision of the adult cestodes of cattle, sheep and allied animals ... / by C.W. Stiles ... and Albert Hassall.

  • Charles Wardell Stiles
Date:
1893
Catalogue details

Licence: Public Domain Mark

Credit: A revision of the adult cestodes of cattle, sheep and allied animals ... / by C.W. Stiles ... and Albert Hassall. Source: Wellcome Collection.

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    oral margin of the segment in its anterior third. The male and female canals were distinct troin each other, but their lumena were very indis- tinct. The female glands were very small, but could be distinguished. A large number of testicles were distributed in the median field, and they were as numerous in the median line as elsewhere. Short linear interproglottidal glands without sacs were present in the median line. In several segments (Plate iv, Fig. 5) measuring 4mm wide by 2.2,,im long, the uteri occupied almost the entire segment and were filled with ova. The other organs were atrophied. The genital pore was in the middle or anterior half of the segment. In the segments G.5mm wide no details were recognized. SPECIFIC DIAGNOSIS. The specific diagnosis of this cestode is very unsatisfactory, owing to our lack of knowledge in regard to important details. H. Neumanni M., 1891.—Strobila 11 to 2 feet long, perhaps longer. Head square, 0.9mm or more broad, suckers powerful, same diameter as in M. Benedeni, hut not so distinctly lobed as in that species. Neck about 2-2.5,nm long, anterior port ion filiform, very thin. Segments narrower and thinner than those of M. Benedeni; the largest segments measure 8min broad by 1.5mm long; the segments at the posterior end somewhat narrower and longer, 6mm by 2mm. Topography of longitudinal canals, gen- ital canals, and female glands probably the same as in M. Benedeni; testicles arranged in a quadrangle. Interproglottidal glands small, linear, without sacs. Ova 55-65 u: embryo 18-21 ju. Type specimens are in the possession of Prof. Moniez, Lille, France^ Bureau of Animal Industry, and C. W. Stiles, Washington, I). C. It will be seen from the above that M. Neumanni as well as 71/. Bene- deni must be subjected to a thorough anatomical study by some one who can obtain the proper material. The powerful contraction of the specimens, and the inability to obtain fresh material, is offered as an apology for not going more into details. See also M. nullicoUis (p. S3). c. w. s. B. Expansa Group. (M. expansa, 71/. oblongiceps, and 71/. trigonophora.) Characterized by the grouping of the interproglottidal glands around blind sacs. (4) Moniezia expansa (R., 1810) R. Bl., 1891. [Plate V, Figs. 1-3; Plate VI.] Synonymy.—(After Rudolphi) Tcenia vasis nuiritiis distinctis Bloch, 1782; T. ovina Goeze, 1782; T. ovina Batscli, 1786; T. ovina Schrank, 1788; T. ovina Gmelin, 1789; Halysis ovina Zeder, 1803—(After Creplin) T. denticulata Mayer—(After Baird, 1853) Alyselminthus expansus Blainvillo—(After Stiles) T. expansa, ex parte of Railliet, Neumann, Perroncito, Curtice, and other recent authors. Hosts.—Sheep (Ovis aries), found by various authors; cattle (Bos taurus), found by various authors; Zebu (Bos indie us), found by Perroncito; goats (Capra hireus); Pyrenian tor or ibex (Capra pyrenaica); roe deer (Capreolus caprea), reported by Nitzsch; pampas deer (Cariacus campestris), see Dies.; brocket (Cariacns rufus), see Dies.; Cervus Nambi, see Dies, (collected byNatterer); Gazella doreas, reported by Bremser, see Dies.; Ovibos moschatus] geiuse or chamois (Ilupicapra tray us), reported by Bremser.