. Animal activities; a first book in zoo?logy. Zoology; Animal behavior. 36 ANIMAL /ICTiyiTIES. seen, consisting of the oesophagus, or gullet, a large crop, a stomach with many tubes called gastric cseca, and an intestine reaching to the anal opening. Lying along the ventral portion of the abdomen are masses of nerve-matter called ganglia, a double mass or pair of ganglia to each segment. These are connected by nerves. All the ganglia, with one exception, the supraoesophageal ganglion, or bi-ain, lie below the digestive tract. This arrangement of organs, the heart dorsal, the nervous system ve
. Animal activities; a first book in zoo?logy. Zoology; Animal behavior. 36 ANIMAL /ICTiyiTIES. seen, consisting of the oesophagus, or gullet, a large crop, a stomach with many tubes called gastric cseca, and an intestine reaching to the anal opening. Lying along the ventral portion of the abdomen are masses of nerve-matter called ganglia, a double mass or pair of ganglia to each segment. These are connected by nerves. All the ganglia, with one exception, the supraoesophageal ganglion, or bi-ain, lie below the digestive tract. This arrangement of organs, the heart dorsal, the nervous system ventral, and the digestive tube between is characteristic of insects. It is interesting to observe. 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 French, Nathaniel Stowers, 1854-. New York [etc. etc. ] Longmans, Green and Co
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecta, booksubjectzoology
