. The Canadian field-naturalist. 222 The Canadian Field-Naturalist Table 1 — {Continued) Vol. 88 Total vertebrae Standard Collection length. Standard number Location Habitat mm Number Range Mean error NMC 71-54, New Brunswick, Burnt Church River 47°13' N, 65°07' W F 46-61 12 30-34 NMC 66-189, Newfoundland, Avalon Peninsula, St. Mary's Bay 47°04' N, 53°34' W M 24-58 36 31-34 NMC 59-297, Nova Scotia, south-west Cape Breton Park 46°40' N, 60°55' W F 32-41 16 30-33 NMC 71-66, New Brunswick, Northumberland Co., stream at New Doaktown Bridge 46°33' N, 66°08' W F 32-5
. The Canadian field-naturalist. 222 The Canadian Field-Naturalist Table 1 — {Continued) Vol. 88 Total vertebrae Standard Collection length. Standard number Location Habitat mm Number Range Mean error NMC 71-54, New Brunswick, Burnt Church River 47°13' N, 65°07' W F 46-61 12 30-34 NMC 66-189, Newfoundland, Avalon Peninsula, St. Mary's Bay 47°04' N, 53°34' W M 24-58 36 31-34 NMC 59-297, Nova Scotia, south-west Cape Breton Park 46°40' N, 60°55' W F 32-41 16 30-33 NMC 71-66, New Brunswick, Northumberland Co., stream at New Doaktown Bridge 46°33' N, 66°08' W F 32-52 40 31-33 NMC 58-317, Prince Edward Island, Hunter River 46°26' N, 63°19' W F 31-43 22 31-33 NMC 64-862, Quebec, Priest Creek near Ottawa 45°44' N, 75°35' W F 26-49 22 32-33 NMC 58-324, Nova Scotia, Oxford 45°44' N, 63°52' W F 21-47 17 29-32 NMC 67-177, Quebec, Quyon River 45°43' N, 76°24' W F 31-42 34 31-32 NMC 65-335, New Brunswick, St. John River 45°28' N. 66°08' W F? 33-55 18 31-33 NMC 66-215, New Brunswick, Magaquadavic River 45°07' N, 66°54' W F 38-53 28 30-33 NMC 64-688, Massachusetts, Wellfleet, Cape Cod 41=57' N, 70°02' W M 48-58 5 31-32 NA. HA Figure 1. Left lateral view of caudal vertebrae of 35-mm standard \&ngXhGasterosteus aculeatus (NMC 64-862). Note fusion of vertebral centra 17 and 18 and displace- ment of haemal arches. (C20 = vertebral centrum 20; HA = haemal arch and spine; NA = neural arch and spine). leback, Gasterosteus wheatlandi, from Amory Cove, Quebec was found to contain eight such individuals from a sample size of 56 (Coad and Power 1973a). Both marine and freshwater populations of the fourspine stickleback, Apeltes quadracus, may have fused vertebrae (a single individual from each of the samples examined by Coad and Power (1973b)). Palistrophic conditions have not been reported before for these stickleback species. The degree effusion
Size: 1631px × 1531px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorottawafieldnaturalistsclub, bookcentury1900, bookcolle
