. Annales du Musée de l'Afrique du Sud  = Annale van die Suid-Afrikaanse Museum. L'histoire naturelle. 272 ANNALES DE LA SOUTH AFRICAN MUSEUM 1899 J9J5 1922 1923 1924 1932 1936 1944 I948 1952 Bassett-Smith, Proc. €ool. Soc. Lond., p. 468. Stebbing, Ann. S. Afr. Mus., xv, p. 58 (record). Wilson, loc. cit., p. 23, pi. 1, fig. 1-8. id., Ark. €ool., xv, 3, p. 13. id., Proc. Nat des États-Unis. Mus., LXIV, p. 12. ibid., loc. cit., p. 446, fig. 281. Yamaguti, par. Copep. Le Japon, pt. Caligoida 3, 2, p. 12. Brian, Un. Mus. L'Argentino, xli, p. 208, pi. 5, fig. 43, 44. Debouteville, Bull. Mus. Hist. Nat. Paris, xx,

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. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 272 ANNALS OF THE SOUTH AFRICAN MUSEUM 1899 I9J5 1922 1923 1924 1932 1936 1944 I948 1952 Bassett-Smith, Proc. £ool. Soc. Lond., p. 468. Stebbing, Ann. S. Afr. Mus., xv, p. 58 (record only). Wilson, loc. cit., p. 23, pi. 1, figs. 1-8. id., Ark. £ool., xv, 3, p. 13. id., Proc. U.S. Nat. Mus., lxiv, p. 12. id., loc. cit., p. 446, fig. 281. Yamaguti, Paras. Copep. Japan, pt. 3, Caligoida 2, p. 12. Brian, An. Mus. Argentino, xli, p. 208, pi. 5, figs. 43, 44. Debouteville, Bull. Mus. Hist. Nat. Paris, xx, 5, p. 446. Birkett & Burd, Ann. Mag. Nat. Hist, (xii), v, p. 391. fig.. Fig. 18. Anthosoma crassum (Abildg.). a, $, with 2nd antenna further enlarged; b, <$', c, 1st leg cJ; d, 2nd leg <$. ? 15 mm., o* 9 mm., ovisacs 25 mm. Carapace yellowish-brown or amber, dorsal plates and foliaceous legs greyish-white, abdomen brown. Localities. Durban (Stebbing, Wilson); Table Bay, False Bay, and Durban, on Porbeagle and species of Carcharias (S. Afr. Mus.). Distribution. Europe, east and west coasts of N. America, New Zealand, Japan, Argentine. On various sharks: Lamna, Carcharias, Isurus, Oxyrhyncha, Cetorhinus, Selache. Remarks. Wilson says this parasite is usually found in the throat attached to the gill-arches. Birkett & Burd record a heavy infestation in the skin of the underside of the shark, Selache, extending around the [axils of the] pectoral fins and into the mouth and gill-slits. The South African Museum specimens were collected by Mr. G. L. Biden (1928 and 1953) from among the teeth of Porbeagles and species of Carcharias. The parasites were present in enormous numbers, closely packed together; the flesh of the jaws was raw and suppurating, and in some cases most of the teeth had fallen out. As Birkett & Burd remark, such an infestation must seriously endanger the health and even the life of the host.. Please note that these images are extracted from scanne

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