A revision of the adult tapeworms of hares and rabbits / by Ch. Wardell Stiles.

  • Charles Wardell Stiles
Date:
[1896]
Catalogue details

Licence: Public Domain Mark

Credit: A revision of the adult tapeworms of hares and rabbits / by Ch. Wardell Stiles. Source: Wellcome Collection.

    18/138
    unarmed, about 0.5 mm. in diameter; rostellum not observed; neck filiform. Segments 500 to 800 in number, quadrate, broader than loug• gravid segments may attain 8 mm. in breadth. Genital pores in about the middle of the margin or in distal half of the margin, irregularly alternate, but for the greater part unilateral. Male organs: Testicles scattered through the entire breadth of the median field; cirrus pouch 0.4 to 0.48mm. long by 0.14 to 0.16 mm. broad, quite muscular, and con- tains a distinct vesicula seminalis; prostata round. Female organs: Vagina distal of cirrus swelling to an elongate receptaculum seminis ventral of vas deferens; ovary near median line in pore side of median field; uterus forms a network in median field, but as the ova develop the boundaries of the meshes become quite indistinct. Ova 48 to 60 p in diameter; pyriform body 20 p broad by 32 to 44 pi long. Calcareous bodies become numerous in distal segments. Host. European wild rabbit (Lepus cuniculus) in Saxony by Biehm; ? European hare (Lepus timidus), see p. 155. Cotypes. Sos. 1377, 1378, U.S.N.M.; collection of Leuckart; Vienna Museum. Genus BERTIA, R. Blanchard, 1891. 1891, Bertia, R. Blanchard, M6m. Soc. zool. France, IV, pp. 186-196. Type, Bertia studeri, R. Blanchard. Provisional diagnosis.—Anoploceplialinse, with segments broader than long. Genital pores regularly or irregularly alternate. Uterus (in all cases'?) a transverse tube with proximal and distal egg pouches; geni- tal canals pass dorsally of dorsal and ventral canal and lateral nerve trunk, but in the two cases at least ventrally of dorsal longitudinal nerve; distinct prostatic gland wanting. Dorsal canal dorsal to dorso- lateral of ventral canal; Egg with well-developed pyriform body. Calcareous corpuscles present or absent. Hosts: Primates and rodents. Type.—B. studeri, B. Blanchard, 1891. Two year's prior to the publication of the genus Andrya by Bailliet, B. Blanchard, in 1891, proposed the genus Bertia for anoplocephaline cestodes with alternate genital pores, taking B. studeri from Anthro- popithecus troglodytes as type of the genus; as second species of the genus he described B. satyri. Unfortunately, on account of paucity of material, Blanchard was unable to give the anatomy of the type species, so that the generic diagnosis was based chiefly upon external characters. His original diagnosis reads as follows: Caput crassum, subspliaericum, rostro aculeisque carens, acetabulis ellipticis, in dua paria valde distautia dispositis. Collum breve, propre tain larguin quam caput. Corpus e permultis annulis brevissimis latisque, imbricatis, constans. Pori geni- tales marginales, tenuissimi, ab uno annulo ad alterum plus minus regulariter alter- nates. In annulo permaturo, ova in plures fasciculos regulares, transverse dis- positus, collecta. Oncosphaera pyriforme apparatu circumdata. Involutio ignota. From Blanchard’s descriptions of the species the following may be taken as provisional specific diagnoses.
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