Life cycle of Coitocaecum anaspidis Hickman, a New Zealand digenetic trematode | Parasitology | Cambridge Core (original) (raw)

Extract

The life cycle of Coitocaecum anaspidis involves three important stages. The adult occurs in Galaxias brevipennis, G. attentuatus, Gobiomorphus gobioides, and in specimens of Anguilla spp. less than 30 cm. long. Potamopyrgus antipodum and P. badia are the molluscan hosts of the sporocyst and cercaria. In New Zealand the cercaria attacks and encysts in Paracalliope fluviatilis, and in Australia in Anaspides tasmaniae. A metamorphosis of the cercarial larva into a progenetic metacercaria takes place in the amphipod.

Paracalliope does not become infected with Coitocaecum till the crustacean has reached 2·0 mm. in length. The thigmotropism of the Paracalliope fits exactly with the ground-living habit of the stumpy-tailed cercaria. The small river fish feeding in slack water acquire Coitocaecum from Paracalliope.

References

Chilton, C. (1904). On the occurrence of a species of cercaria in the cockle. Trans. N.Z. Inst. 37, 322–4.Google Scholar

Hickman, V. V. (1934). On Coitocaecum anaspidis (n.sp.), a trematode exhibiting progenesis in the freshwater crustacean Anaspides tasmaniae Thomson. Parasitology, 26, 121–8.Google Scholar

Hopkirk, C. S. M. (1927). The intermediate host of Fasciola hepaticum in New Zealand. N.Z. J. Agric. p. 175.Google Scholar

Hutton, W. F. (1904). Index Faunae Novae Zealandiae. London.Google Scholar

Lühe, M. (1909). Trematoda. Die Süsswasser-fauna Deutschlands. Jena.Google Scholar

McCoy, O. R. (1929). The life history of a marine trematode Hamacreadium mutabile Linton. 1910. Parasitology, 21, 220–5.CrossRefGoogle Scholar

Macfarlane, W. V. (1937). Liver fluke in New Zealand sheep. J. Agric. N.Z. 55.Google Scholar

Monticelli, F. S. (1899). Notes on some entozoa in the collection of the British Museum. Proc. zool. Soc. Lond. pp. 321–5.Google Scholar

Nicoll, W. (1910). On the entozoa of fishes from the Firth of Clyde. Parasitology, 21, 341–7.Google Scholar

Nicoll, W. (1915). Trematode parasites of Queensland. Parasitology, 8, 22–41.Google Scholar

Pigulewsky, S. W. (1931). Neue Arten von Trematoden aus Fischen des Dnjeprbassins. Zool. Anz. 96.Google Scholar

Stunkard, W. H. (1930). An analysis of the methods of study of larval trematodes. Parasitology, 22, 268–73.CrossRefGoogle Scholar

Yamaguti, S. (1934). Helminth fauna of Japan. II. Jap. J. Zool. 5 (Coitocaecum, p. 356).Google Scholar

Young, M. R. (1938). Helminth parasites of New Zealand. Imp. Bur. agric. Parasii. (Helminthology).Google Scholar