. The common frog. Frogs. 26 THE COMMON FROG. [chap. the frogs and toads. Nevertheless a very perfect organ for both wounding and poisoning has been discovered by Dr. Giinther to exist in a certain fish [Thalassophryne reticulata), belonging to a groijp ^£-3%.^ 1 ; *''. FiG. 7.—Poison Organ of ThalassoJ>hry7ie reticulata (after Giinther). i, Hinder half of the head with the venom-sac of the opercular apparatus in situ. * Place where the small opening in the sac has been observed, a. Lateral line and its branches; d, gill-opening; c, central fin; d, base of pectoral fin; e, base of dorsal fi
. The common frog. Frogs. 26 THE COMMON FROG. [chap. the frogs and toads. Nevertheless a very perfect organ for both wounding and poisoning has been discovered by Dr. Giinther to exist in a certain fish [Thalassophryne reticulata), belonging to a groijp ^£-3%.^ 1 ; *''. FiG. 7.—Poison Organ of ThalassoJ>hry7ie reticulata (after Giinther). i, Hinder half of the head with the venom-sac of the opercular apparatus in situ. * Place where the small opening in the sac has been observed, a. Lateral line and its branches; d, gill-opening; c, central fin; d, base of pectoral fin; e, base of dorsal fin 2, Operculum, with the periorated spine. which, on account of their superficial resemblances to frogs, are termed " ; He found in the fish no less than four spines, each perforated like the tooth of a viper, and each having a sac at its base. One such poison-spine Avas situated on each side of the hinder uart of the head in front. 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 Mivart, St. George Jackson, 1827-1900. London, Macmillan and co.
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherlondo, bookyear1881
