. La Canadian field-naturaliste. 82 Le Canadian Field-Naturalist Vol. 98. La figure 2. Répartition canadienne du lépisosté tacheté (Lepisosteus oculatus). Avec la permission de D. E. McAllister, Musée National des Sciences Naturelles. argiles, de détritus et de soft muck. Une seule capture site dans la baie Rondeau avait un chemin de gravier et de pierres bas dépourvu de macrophytes aquatiques ; cependant, aquatiques denses vege- tion était présent à quelques centaines de mètres de l'emplacement. En général, la végétation aquatique a été dense aux sites de capture. Spatterdock (Nuphar sp.). Les quenouilles (Typha sp.) et d'élodée (Anacharus sp.) ont été abondantes. Tur- bidity amon varié

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. The Canadian field-naturalist. 82 The Canadian Field-Naturalist Vol. 98. Figure 2. Canadian distribution of Spotted Gar (Lepisosteus oculatus). Courtesy of D. E. McAllister, National Museum of Natural Sciences. clays, detritus, and soft muck. A single capture site in Rondeau Bay had a gravel-and-stone bottom devoid of aquatic macrophytes; however, dense aquatic vege- tation was present a few hundred meters from the site. Typically, aquatic vegetation was dense at capture sites. Spatterdock (Nuphar sp.). Cattails (Typha sp.) and Waterweed (Anacharus sp.) were abundant. Tur- bidity varied among capture sites (Secchi disk range from 30 cm to over 3 m) and dissolved oxygen levels ranged from 9 to 11 mg/ L at water temperatures from 15° C to 17° C in September. This species is tolerant of warm waters and low dissolved oxygen levels, and can survive in these conditions for a long time (Scott 1967). General Biology Much of the pertinent literature states that the biol- ogy of the Spotted Gar is similar to that of the Long- nose Gar, but no detailed discussions seem to be avail- able (Scott and Grossman 1973). The Spotted Gar is distinguished from the Long- nose Gar by head colour, snout length and lateral line scale count. The Spotted Gar has a spotted head; its snout is wide, least snout width 6 to 8 times in snout length; and lateral line scales vary in number from 53 to 57. The Longnose Gar does not have a spotted head; it has a long, narrow snout, least snout width 14 to 18 times in snout length; and h has a higher lateral line scale count than the Spotted Gar, usually 61 to 65. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club

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