. A text-book of invertebrate morphology. Invertebrates. 120 INVEBTEBBATM MOBPHOLOOT. CHAPTER VI. THE CTENOPHORA. The group of forms known as the Ctenophora, to â which the systematic value of a class may be given, present no little general resemblance to the Coelentera, but at the same time depart so widely in structural and histological characters from the Cnidaria and Porifera that it seems advisable, until further evidence is forthcoming, to consider them as a group apart. All the Ctenophores are pelagic and are of great transpa- rency and delicacy, due to the nature of the mesogloeal tiss
. A text-book of invertebrate morphology. Invertebrates. 120 INVEBTEBBATM MOBPHOLOOT. CHAPTER VI. THE CTENOPHORA. The group of forms known as the Ctenophora, to â which the systematic value of a class may be given, present no little general resemblance to the Coelentera, but at the same time depart so widely in structural and histological characters from the Cnidaria and Porifera that it seems advisable, until further evidence is forthcoming, to consider them as a group apart. All the Ctenophores are pelagic and are of great transpa- rency and delicacy, due to the nature of the mesogloeal mc Pig. 66.âBoUna hydatina (after Cmra). cp = ciliated plates. tc = funnel-canal. g = stomach or funnel. I = lobe. mc = stomodseal canal. In form they vary greatly, some being almost spherical or pyriform {Pleurohrachia), sometimes with broad lobes project- ing from near the oral extremity (Fig. 66, I) {Bolina, Mnemi-. 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 and Company
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1894
