. The Canadian field-naturalist. 1979 Notes 311 QUEBEC NORTH SHORE. Figure I. Map of south-eastern Quebec and Newfoundland showing the major currents (based on Cameron 1958) and the collection sites of the freshwater leeches (•). added records for Helobdella triserialis and Glossi- phonia complanata. Davies (1973) recorded seven species from the Gaspe Peninsula to which, from subsequent collections, can now be added Nephelo- psis obscura and Percymoorensis marmorata (Table 1). Although no new species can be added to the 18 recorded in Quebec by Davies (1973) (Table 1) the presence on the Quebe
. The Canadian field-naturalist. 1979 Notes 311 QUEBEC NORTH SHORE. Figure I. Map of south-eastern Quebec and Newfoundland showing the major currents (based on Cameron 1958) and the collection sites of the freshwater leeches (•). added records for Helobdella triserialis and Glossi- phonia complanata. Davies (1973) recorded seven species from the Gaspe Peninsula to which, from subsequent collections, can now be added Nephelo- psis obscura and Percymoorensis marmorata (Table 1). Although no new species can be added to the 18 recorded in Quebec by Davies (1973) (Table 1) the presence on the Quebec North Shore of H. stagnalis, H. triserialis, G. complanata, M. fervida, N. obscura, Erpobdella punctata, and Dina parva can be con- firmed. Three of the four leech species on Anticosti Island {H. stagnalis, H. triseralis, and G. complanata) belong to the family Glossiphoniidae while M. fervida belongs to the family Erpobdellidae. The Glossi- phoniidae produce thin-walled cocoons which are immediately covered by the parents' body and to which, while still enclosed within the egg membrane, the young glossiphoniids develop an embryonic attachment. As young glossiphoniids prematurely removed from the parent fail to survive, it can be assumed for these three species at least, that dis- persion to Anticosti Island must have been in the adult stage. The Erpobdellidae deposit their cocoons on a firm substratum and the parent has no further participation. It is thus possible for M. fervida to be dispersed in the cocoon stage while attached to stones or plant material. Table 1—The distribution of freshwater Hirudinoidea species in the province of Quebec, Gaspe Peninsula, Anticosti Island, and the Quebec North Shore Que- Anti- North Species bec Gaspe costi Shore Piscicola geometra (Linn.) X Piscicola milneri {WeTuW) X Piscicola punctata (Verrill) X Bactracobdella picta (Verrill) X X Glossiphonia complanata (Linn.) X X X X Glossiphonia heteroclita (Linn.) X X Helobdella stagnalis (Li
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