. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). 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 § I 6. Order Hydrocorallinse. The Hydrocoralliuffi are colonial marine forms represented by the Stag's-horn Coral, Millepora, and characterized by the deusely ramified ccenosarcal tubes being enclosed in a mass of carbonate of lime secreted by the ccenosarcal ectoderm aud taking the place of
. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). 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 § I 6. Order Hydrocorallinse. The Hydrocoralliuffi are colonial marine forms represented by the Stag's-horn Coral, Millepora, and characterized by the deusely ramified ccenosarcal tubes being enclosed in a mass of carbonate of lime secreted by the ccenosarcal ectoderm aud taking the place of the perisarc. From minute pores on the surface of this calcareous mass, the corallum, the hydrauths protrude and present a well-marked polymorphism. The pores are arranged in groups consisting of a central one sur- rounded by a varying number of smaller ones. From tiie central pore protrudes a hydranth with a circle of short ten- tiu-los tipped with knobs containing niimerous nematocysts; tins IS tiie trophopolyp or gasferozoid (Fig. 46, g). From the smaler surrounding pores more elongated hydranths protrude, <lestitute of a mouth, and with short scattered tentacles also. 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
