. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). TYPE C(ELENTERA. 89 fnnctioD, whence the medusae are f^squentlj termed oceUate and, secondly, iu that the re- * productive organs develop in the wall of the manubrium instead of on the line of the four radiating canals. Ten- tacles as a rule occur at the margin of the bell, and it is at their bases that the e^'es are formed. Occasionally, as in Jfargelis (Fig. 45), tentacles also arise from the end of the mauabrium. As a rule, the sexual generation is composed of free
. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). TYPE C(ELENTERA. 89 fnnctioD, whence the medusae are f^squentlj termed oceUate and, secondly, iu that the re- * productive organs develop in the wall of the manubrium instead of on the line of the four radiating canals. Ten- tacles as a rule occur at the margin of the bell, and it is at their bases that the e^'es are formed. Occasionally, as in Jfargelis (Fig. 45), tentacles also arise from the end of the mauabrium. As a rule, the sexual generation is composed of free-swimming medusae, as iu Coryne, Margelis, and Pen- naria, but not infrequently the medusa-buds become retarded iu their development, as iu ^'o- â Medusa of Margelis caroli- nensis. Hydractinia, Clava, Tuhularia, aud to an extreme extent in Eudendrium, and all intermediate stages between the two extremes are to be 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 McMurrich, J. Playfair (James Playfair), 1859-1939. New York : H. Holt
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1896
