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On a New Bothriocephalus and a New Genus of Proteocephalidae from Indian Fresh-water Fishes

  • W. N. F. Woodland (a1)
Abstract

1. A new species of Bothriocephalus—B. pycnomerus—is described from the intestine of Ophiocephalus marulius Ham. Buch., from the Ganges and Jumna at Allahabad, India.

2. B. pycnomerus closely resembles B. histiophorus (Shipley 1901; from the marine sword-fish Histiophorus) in structure but differs chiefly in the possession of an armed scolex and its crowded indistinct segmentation.

3. Lühe's definition of the genus Bothriocephalus must be amended to include forms with armed scolices and forms in which the ventral uterine apertures are a-median and irregularly alternate.

4. Two new species of Proteocephalidae are described which possess armed muscular rostella, and for these a new genus Gangesia is created and defined. The definitions of the Order Tetraphyllidea (Lühe 1910) and of the Family Proteocephalidae (La Rue 1914) must be amended to include forms possessing muscular rostella, armed or unarmed.

5. These two new species—Gangesia wallago and G. macrones—were found in the intestines of Wallago attu Bleek and Macrones seenghala Sykes (both Siluroids) respectively, from the Ganges and Jumna at Allahabad.

6. Southwell's “Ophryocotyle bengalensis,” from Ophiocephalus striatus, Labeo rohita and Wallago attu, is probably identical with Gangesia wallago.

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References
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Beddard F. E. (1913). Contributions to the Anatomy and Systematic Arrangement of the Cestoidea. VII, On Six Species of Tapeworms from Reptiles, belonging to the Genus Ichthyotaenia (s. 1). Proc. Zool. Soc. London, p. 4.
La Rue G. R. (1911). A Revision of the Cestode Family Proteocephalidae. Zool. Anzeig. xxxviii. 473.
La Rue G. R. (1914). A Revision of the Cestode Family Proteocephalidae. Illinois Biological Monographs (Univ. of Illinois, Urbana), Vol. i.
Lühe M. (1899). Beiträge zur Kenntnis der Bothriocephaliden. Centralbl. Bakt. u. Parasit. xxvi. 702.
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Southwell T. (1915 b). Notes from the Bengal Fisheries Laboratory, Indian Museum. No. 3. On Helminths from Fish and Aquatic Birds in the Chilka Lake. Rec. Indian Mus. xi. 331.
Woodland W. N. F. (1923). On some remarkable new Forms of Caryophyllaeidae from the Anglo-Egyptian Sudan, and a Revision of the Families of the Cestodaria. Quart. Journ. Micr. Sci. lxvii. Part III, p. 435.
Woodland W. N. F. (1924). On a new Species of the Cestodarian Genus Caryophyllaeus from an Egyptian Siluroid. Proc. Zool. Soc. London, Part 2, p. 529.
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Parasitology
  • ISSN: 0031-1820
  • EISSN: 1469-8161
  • URL: /core/journals/parasitology
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