. On the anatomy of vertebrates [electronic resource] . 590 ANATOMY OF VERTEBRATES. Fishes the spermatozoa resemble those of the Perch, fig. 400: butin some, e. g. the Loach, there is a small swelling at the insertionof the appendage, as in fig. 401. In a few the £ body is scarcelyindicated, e. g. in the river Lamprey, fig. 402 : in the Petromyzonmarinas the body expands into an egg-shape. 400 401 402. Spermatozoa of Perca Spermatozoa of Colitis Spermatozoon of Petromyzon fluviatilis. cccvi. fossilis. cccvi. fiuviatilis. cocrvi. The spermatozoa in the Plagiostomes are very long, with ananterio
. On the anatomy of vertebrates [electronic resource] . 590 ANATOMY OF VERTEBRATES. Fishes the spermatozoa resemble those of the Perch, fig. 400: butin some, e. g. the Loach, there is a small swelling at the insertionof the appendage, as in fig. 401. In a few the £ body is scarcelyindicated, e. g. in the river Lamprey, fig. 402 : in the Petromyzonmarinas the body expands into an egg-shape. 400 401 402. Spermatozoa of Perca Spermatozoa of Colitis Spermatozoon of Petromyzon fluviatilis. cccvi. fossilis. cccvi. fiuviatilis. cocrvi. The spermatozoa in the Plagiostomes are very long, with ananterior cylindrical body. This is proportionally shortest inChimcera monstrosa, and is disposed in three spiral coils: inScyllium canicala it is about half the length of the spermatozoon, 403 404 405
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Keywords: ., bookcentury1800, booksubject, booksubjectbirds, booksubjectfishes
