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On some commensal Turbellaria of the Canadian East Coast

  • Ecology & Faunistics
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Abstract

The brachyurans Chionoecetes opilio and Hyas araneus collected from the east coast of Canada harbour two species of commensal turbellarians. Ectocotyla hirudo (Levinsen) and E. multitesticulata Fleming & Burt are found on the gills and branchial chambers of male and female crabs. The molluscs Crassostrea virginica and Mytilus edulis collected from several locations where they are cultured along the Northumberland strait carry two commensal eulecithophoran turbellarians, both on the gills, viz., Urasloma cyprinae (Graff) and Paravortex gemellipara (Linton), the latter being a new host record. Aspects of the biology and life-history of these turbellarians are discussed, especially in relationship to the biology of their hosts.

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Abbreviations

A:

Atrium

An:

Antrum

C:

Capsule

CO:

Common Oviduct

E:

Embryo

Ep:

Egg-laying pore

GP:

Genital Pore

I:

Intestine

O:

Ovary

Od:

Oviduct

Og:

Ora-genital Pore

Ph:

Pharynx

Sp:

Sperm

SV:

Seminal Vesicle

T:

Testes

Va:

Vagina

Y:

Yolk

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Authors and Affiliations

  1. Department of Biology, University of New Brunswick, E3B 6E1, Fredericton, N.B., Canada

    Lesly C. Fleming & Michael D. B. Burt

  2. Research and Productivity Council, Fredericton, NB., Canada

    G. B. Bacon

Authors
  1. Lesly C. Fleming
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  2. Michael D. B. Burt
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  3. G. B. Bacon
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Fleming, L.C., Burt, M.D.B. & Bacon, G.B. On some commensal Turbellaria of the Canadian East Coast. Hydrobiologia 84, 131–137 (1981). https://doi.org/10.1007/BF00026171

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