It is perhaps because fishes live in a buoyant medium, whether it be fresh or sea water, that they show a diversity in body shapes that is unparalleled by other vertebrates. There is also a unique diversity in the modes of reproduction, whether by external or internal fertilization, and this, with the morphology and fine structure of the reproducti

chapter 1|24 pages

Phylogeny and Classification

chapter 4|24 pages

The Testis and Spermatogenesis in Teleosts

chapter 6|20 pages

Ultrastructure of Spermatozoa in Agnathans

chapter 8|16 pages

Ultrastructure of Spermatozoa: Chondrostei

chapter 11|102 pages

Ultrastructure of Spermatozoa: Ostariophysi

chapter 16|38 pages

Ultrastructure of Spermatozoa: Sarcopterygii