An Aid to a Collector of the Coelenterata And Echinodermata of New England
The book An Aid to a Collector of the Coelenterata And Echinodermata of New England was written by author Fewkes Jesse Walter Here you can read free online of An Aid to a Collector of the Coelenterata And Echinodermata of New England book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is An Aid to a Collector of the Coelenterata And Echinodermata of New England a good or bad book?
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Lam. STRONG YLOCENTROTUS. Strong ylocentrotus. Body globose ; anus and mouth op- posite. Spines ot one kind, short, small, greenish color. 68 CCELENTERATA AND Apical area with irregular plates. Pluteus without anal rods. S. Drobachiensis. Clypeastroids. Echinarachnius. Body nearly circular, very flat with sharp, entire margin. Vent close to edge. Petaloid re- ECHINAR AC HNIUS . gion nlarked. Spines small, short, brown or reddish color. Pluteus without anal rods. E. Parma. Spatangoids. Schizaste...r. Body heart-shaped, irregular, oval with avenues on the upper surface. Mouth asymmetrical. Test thin, fragile. Ambnlacral zones depressed and petaloid. Pluteus with single median calcareous rod on the anal lobe. jS. Fray His. ECHINODERMATA OF NEW ENGLAND. 69 HOLOTHURIOIDE A . Body elongate, vermiform with oral and anal openings at opposite poles of the animal. Skin leathery often cov- ered with scales, sometimes spinous, often with embedded spicules or anchors. Ambulacra! suckers wanting or'pres- ent.
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