Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0101clau Year: 1884 D FIG. 76.—Alimentary canal and nsrvous system of Mesosto- mum Ehrenbergi (after Graff). G, the paired cerebral ganglia with two eye-spots; St. one of the two main lateral nerves ; Z>,alirnentary canalwithmonth and pharynx. Crt G3- G FIG. 77.—Nervous system of FIG. 78.—Nervous system the larva of Coccinella (after Ed. Brandt). G, su- pra-oesophageal ganglion or brain; Gfr, frontal ganglion; Sy, subosso- phageal ganglion; G',-G', the eleven ganglia of the ventral chain of thorax and
Elementary text-book of zoology (1884) Elementary text-book of zoology elementarytextbo0101clau Year: 1884 D FIG. 76.—Alimentary canal and nsrvous system of Mesosto- mum Ehrenbergi (after Graff). G, the paired cerebral ganglia with two eye-spots; St. one of the two main lateral nerves ; Z>,alirnentary canalwithmonth and pharynx. Crt G3- G FIG. 77.—Nervous system of FIG. 78.—Nervous system the larva of Coccinella (after Ed. Brandt). G, su- pra-oesophageal ganglion or brain; Gfr, frontal ganglion; Sy, subosso- phageal ganglion; G',-G', the eleven ganglia of the ventral chain of thorax and abdomen. of adult Coccinella (after Ed. Brandt). A(j, optic gansrlion. The other let- ters as in fig. 77. (Gephyrea) or of a ventral chain of ganglia, which may have a homonomous (Annelids) or heteronomous (Arthropods) arrangement (figs. 77 and 78). The concentration of the nervous system begun 6
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