. Animal biology. Zoology; Biology. P/n^ cai/7a/ Pc>//fT/7 ves/c/es Gen/-^/ o, Ampu/Zae lOf7^/'-/-ac///-?ar/ musc/e banc/ Cov/'e-/'/crr7. ^«V7//^ rl ~'\^i\/^^^^^por/'-^e Gonard ;7~ ~\\^/n-/-esf/ne — b/ooof vessel Venfrenf b/ooo/ vessef ^^^^- Pesp/'ra-Z-ory tree Paef/'a/ musc/es Fig. 121. Fig. 122. Fig. 121.—A sea cucumber, Cucumaria planci Brandt, from the Mediterranean. From a preserved specimen. X /s- Fig. 122.—Diagram of the internal anatomy of a sea cucumber representing the animal laid open and the wall of the body turned to each side. bearing smaller pinnules arranged like the barbs o
. Animal biology. Zoology; Biology. P/n^ cai/7a/ Pc>//fT/7 ves/c/es Gen/-^/ o, Ampu/Zae lOf7^/'-/-ac///-?ar/ musc/e banc/ Cov/'e-/'/crr7. ^«V7//^ rl ~'\^i\/^^^^^por/'-^e Gonard ;7~ ~\\^/n-/-esf/ne — b/ooof vessel Venfrenf b/ooo/ vessef ^^^^- Pesp/'ra-Z-ory tree Paef/'a/ musc/es Fig. 121. Fig. 122. Fig. 121.—A sea cucumber, Cucumaria planci Brandt, from the Mediterranean. From a preserved specimen. X /s- Fig. 122.—Diagram of the internal anatomy of a sea cucumber representing the animal laid open and the wall of the body turned to each side. bearing smaller pinnules arranged like the barbs on a feather. The tube feet are tentacle-like and without ampullae. Crinoids are found mostly at moderate depths, but a few belong to the deep-sea fauna. They may be free-swimming, when they are known as feather stars (Fig. 124). 241. Reproduction.—The reproduction of all echinoderms is similar to that of the starfish. They all develop a bilaterally symmetrical swimming larva, and all undergo metamorphosis. The larvae of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wolcott, Robert Henry, 1868-1934; University of Nebraska (Lincoln campus). Dept. of Zoology. New York ; London : McGraw-Hill Book Company, Inc.
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