. The Canadian field-naturalist. Figure 1. Ichthymomyzon castaneus: female, 224 mm TL; Black Lake, Ottawa, Co., Michigan, 1 March 1929; J. Metzelaar; UMMZ 101722. Note characteristic bicuspid endolateral teeth, in this case numbering 8. of Saskatchewan, it has been captured in the Whitesand River (51°34'N, 101°56'W), in Round Lake (50°32'N, 101°22'W), in the Qu'Appelle River at Tantallon (50°32'N, 101°50W) [Royal Ontario Museum (ROM 34319)], and in the Shell River near Shellmouth (50°56'N, 101°29'W), Manitoba (Alton and Merkowsky 1983). In the Red River basin of Manitoba, it has been reported
. The Canadian field-naturalist. Figure 1. Ichthymomyzon castaneus: female, 224 mm TL; Black Lake, Ottawa, Co., Michigan, 1 March 1929; J. Metzelaar; UMMZ 101722. Note characteristic bicuspid endolateral teeth, in this case numbering 8. of Saskatchewan, it has been captured in the Whitesand River (51°34'N, 101°56'W), in Round Lake (50°32'N, 101°22'W), in the Qu'Appelle River at Tantallon (50°32'N, 101°50W) [Royal Ontario Museum (ROM 34319)], and in the Shell River near Shellmouth (50°56'N, 101°29'W), Manitoba (Alton and Merkowsky 1983). In the Red River basin of Manitoba, it has been reported in the Rat River, km upstream from St. Malo (49°16'N, 96°51W) [Case 1970], in the Red River (Keleher 1952), between Selkirk and St. Andrews locks (50°09'N, 96°52'W) and at Winnipeg (49°53'N, 97°09'W [ROM 19839]; in Lake Winnipeg, near Black Island (51°12'N, 96°36'W) [ROM 16295] and Dog Head Point (51°45'N, 96°48'W) [ROM 285]; in the Assiniboine River (49°53'N, 97°08'W) [ROM 14341] where it was first reported in Canada at Portage la Prairie (49°59'N, 98°18'W) [Scott and Crossman 1973]; in the Winnipeg River (50°38'N, 96°19'W) [Hinks 1943]; and in Devil Creek at Red River (50°19'N, 96°49'W) [Manitoba Museum of Man and Nature (MMMN )]. This distribu- tion represents the northern limits of the range of this species in North America. Protection The Chestnut Lamprey is not listed as endangered, threatened or of special concern in North America (Williams et al. 1989). In Canada, the species is not the object of any legal protection other than the gen- eral protection granted under sections 34 to 42 of the Fisheries Act, which pertain to the protection of, and prevention of pollution in, fish habitats. In Manitoba, protection can be offered through the provincial Endangered Species Act by regulation. Population Sizes and Trends The Chestnut Lamprey was first reported in Canada by E. S. Thompson in 1898: he recorded the species as present in the Assi
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Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1910, bookyear1919
