The germ-cell cycle and method of reproduction in the daughter sporocysts of the bucephalid Cercaria bucephalopsis haimeana (Lacaze-Duthiers, 1854) and the gymnophallid Cercaria dichotoma Lebour, 1911 (non Muller) from the edible cockle, Cardium edule L., have been investigated by the examination of stained sections. A review is given of the principal interpretative theories which attempt to explain the nature of the reproduction and the homology of the germinal sacs of the Digenea. It is suggested that the life-cycle includes a cyclic alternation of homologous generations. Of these, the miracidium/mother-sporocyst and the daughter germinal-sac generations usually reproduce by apomictic parthenogenesis but polyembryony may also occur secondarily in some species.We are very grateful to Dr Gwendolen Rees and Professor E. W. Knight-Jones for considerable help with the manuscript.

A study of the miracidium of GigantoWharzta huroneruis Najim, 1950, with special reference to the germinal cells.

Reproduction in the daughter sporocyst of Cercaria bucephalopsis haimeana (Lacaze-Duthiers, 1854) (Bucephalidae) and Cercaria dichotoma Lebour, 1911 (non Müller) (Gymnophallidae)

Additional excerpts

/pdf/trematodes-of-the-pacific-northwest-an-annotated-catalog-by-3sumj7dk0l.pdf

Trematodes of the Pacific Northwest, an annotated catalog [by] Ivan Pratt [and] James E. McCauley.

https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=7484&context=rtd

A study of the miracidium of GigantoWharzta huroneruis Najim, 1950, with special reference to the germinal cells.

Citations

Reproduction in the daughter sporocyst of Cercaria bucephalopsis haimeana (Lacaze-Duthiers, 1854) (Bucephalidae) and Cercaria dichotoma Lebour, 1911 (non Müller) (Gymnophallidae)

Trematodes of the Pacific Northwest, an annotated catalog [by] Ivan Pratt [and] James E. McCauley.

Biology and host-parasite relationships of Gigantobilharzia huronensis (Trematoda: Schistosomatidae)

Studies on Chromosomes of Reproductive Cells and Fertilization of Echinostoma hortense ASADA (1926) (Trematoda, Echinostomatidae)