Animal life in the sea and on the land . Fig. 2.—Sponges SPONGES. 3 bodies united in a mass, and supported by a framework ofhorny fibres, and needle-shaped objects called spicules,which you will see in Fig. 3, and which we must examinefurther after a while. This jelly-likeflesh, covering all parts of the skele-ton, is about as thick as the whiteof an egg, and it decays immedi-ately after the death of the life the flesh presents many bright colors; in some species it is r. „ p A „ & * Fig. 3.—Groups of Spic- of a brilliant green, while in others ules. it is orange, red,
Animal life in the sea and on the land . Fig. 2.—Sponges SPONGES. 3 bodies united in a mass, and supported by a framework ofhorny fibres, and needle-shaped objects called spicules,which you will see in Fig. 3, and which we must examinefurther after a while. This jelly-likeflesh, covering all parts of the skele-ton, is about as thick as the whiteof an egg, and it decays immedi-ately after the death of the life the flesh presents many bright colors; in some species it is r. „ p A „ & * Fig. 3.—Groups of Spic- of a brilliant green, while in others ules. it is orange, red, or yellow. 5. Framework.—The framework varies in differentkinds of sponges. In those which are valuable for our usethis framework consists of horny fibres interwoven in alldirections until they form a mass of lacy net-work. Thisyou can easily see with the naked eye, but by lookingthrough a microscope you will see beauty you had notimagined. In our ordinary sponges these fibres are allthat remain of the former living animal, the soft fleshwith which t
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1887
