id author title date pages extension mime words sentences flesch summary cache txt 46614 Jordan, David Starr A Guide to the Study of Fishes, Volume 1 (of 2) .txt text/plain 184207 11703 69 How Fishes Breathe.--The Gill Structures.--The Air-bladder.--Origin Fishes.--Variations in Fin-rays.--Relation of Numbers to Conditions =Form of Body.=--With a glance at the fish as a living organism and =Specialization of the Skeleton.=--In the lowest form of fish-like the fish-like series, and the origin of the paired fins or limbs, which =Forms of the Tail in Fishes.=--In the process of development the immature fish passing through a series of form stages which differ one =Peculiar Larval Forms.=--The young fish usually differs from the deal-fish (_Trachypterus_) the form of the body and fins changes This is a large family containing many species, fishes of local habits, At present about 900 species of fishes are known from the four great Several species of fresh-water fishes occur at the same time hundred species[75] of fishes as found in the fresh waters of North stream of a large number of species of fishes are the following, the ./cache/46614.txt ./txt/46614.txt