. On the anatomy of vertebrates [electronic resource] . 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. B Spermatozoa within theA. Spermatozoa of B. Spermatozoon of sperm-cell {Torpedo Narce). Seymnus nicceensis. cccvi. Torpedo Narce. cccvi. cccvi. is straigh
. On the anatomy of vertebrates [electronic resource] . 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. B Spermatozoa within theA. Spermatozoa of B. Spermatozoon of sperm-cell {Torpedo Narce). Seymnus nicceensis. cccvi. Torpedo Narce. cccvi. cccvi. is straight, and tapers at both ends: in Seymnus nicceensis, , it is spirally disposed. In Spinax acanthias, the Rays andTorpedos, fig. 404, the spiral coils are rather closer, usually fourin number: in Raia oxyrhynchus the coils are more numerous,but only affect the anterior half of the body. In the Plagiostomes the spermatoa appear as one or more nucleiwithin the sperm-cell, like those in fig. 399, b: but they are not,as in Osseous Fishes, excluded in that In each spermatoon1 cccvi. vol. iv. p. 484. SEMINATION OF HJEMATOCRYA. 591 At this stage 406
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