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The whale shark, Rhincodon typus, is a livebearer: 300 embryos found in one ‘megamamma’ supreme

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References cited

  • Balon, E.K. 1981. Additions and amendments to the classification of reproductive styles in fishes. Env. Biol. Fish. 6: 377–389.

    Google Scholar 

  • Balon, E.K. 1990. Epigenesis of an epigeneticist: the development of some alternative concepts on the early ontogeny and evolution of fishes. Guelph Ichthyol. Rev. 1: 1–42.

    Google Scholar 

  • Bass, A.J., J.D. D'Aubrey & N. Kistnasamy. 1975. Sharks of the east coast of southern Africa. IV. The families Odontaspididae, Scapanorhynchidae, Isuridae, Cetorhinidae, Alopiidae, Orectolobidae and Rhiniodontidae. Invest. Rep. No. 39, Oceanogr. Res. Inst., Durban. 102 pp.

    Google Scholar 

  • Baugham, J.L. 1995. The ovipariy of the whale shark. Rhincondon typus, with records of this and other fishes in Texas waters. Copeia 1955: 54–55.

    Google Scholar 

  • Clark, E. 1992. Whale sharks. National Geographic 182(6): 120–139.

    Google Scholar 

  • Compagno, L.J.V. 1984. FAO species catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1. Hexanchiformes to Lamniformes. FAO Fish. Synop. 125, Vol. 4, Pt. 1, Rome. 249 pp.

  • Garrick, J.A.F. 1964. Additional information on the morphology of an embryo whale shark. Proc. U.S. Nat. Mus. 115(3467): 1–8.

    Google Scholar 

  • Wolfson, F.H. 1983. Records of seven juveniles of the whale shark, Rhincodon typus. J. Fish Biol. 22: 647–55.

    Google Scholar 

  • Wourms, J.P. 1981. Viviparity: the maternal-fetal relationship in fishes. Amer. Zool. 21: 473–515.

    Google Scholar 

  • Wourms, J.P., B.D. Grove & J. Lombardi. 1988. The maternal-embryonic relationship in viviparous fishes. pp. 1–134. In: W.S. Hoar & D.J. Randall (ed.) Fish Physiology, Vol. 11B, Academic Press, San Diego.

    Google Scholar 

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Joung, SJ., Chen, CT., Clark, E. et al. The whale shark, Rhincodon typus, is a livebearer: 300 embryos found in one ‘megamamma’ supreme. Environ Biol Fish 46, 219–223 (1996).

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Key words

  • Rhincodontidae
  • Sizes of embryos
  • Egg cases
  • Reproductive anatomy
  • Obligate lecithotrophic livebearer
  • Ovoviviparity
  • Lecithotrophic viviparity
  • Elasmobranch