. Elementary text-book of zoology. SEPIA. 279 into the stomach, in which it is mixed with the digestive juices from the digestive gland and pancreatic caeca. It may be noticed that the anus is not at the hind end of the body, but the intestine is bent forwards along the under surface till the whole alimentary canal is U-shaped, with a ventral flexure. Fig. 197.—Dissection of Organs of Sepia Officinalis from THE Left Side. (Semi-diagrammatic.) {Ad nat.) CEsophagus, Anterior Aorta. | Buccal Mass. Buccal Glands. I Intestine. Digestive Ctenidium. Auricle. Posterioi Aorta. Mantle'Cavity. In
. Elementary text-book of zoology. SEPIA. 279 into the stomach, in which it is mixed with the digestive juices from the digestive gland and pancreatic caeca. It may be noticed that the anus is not at the hind end of the body, but the intestine is bent forwards along the under surface till the whole alimentary canal is U-shaped, with a ventral flexure. Fig. 197.—Dissection of Organs of Sepia Officinalis from THE Left Side. (Semi-diagrammatic.) {Ad nat.) CEsophagus, Anterior Aorta. | Buccal Mass. Buccal Glands. I Intestine. Digestive Ctenidium. Auricle. Posterioi Aorta. Mantle'Cavity. In its natural position, the cuttle rests suspended in the water near the surface with the body horizontal, the tentacles jj . hanging loosely downwards, the two long ones being coiled up inside the others. A forward, swimming motion is caused by undulations of the two lateral fins. A powerful backward jerk is produced by forcible ejection of water through the siphon. There are special muscles for moving the tentacles and the eyes. Fig. 198.—Ventral View of Shell of Cuttle. The inner part is calcareous, outer hornj'.. 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 Masterman, Arthur Thomas. Edinburgh, E. & S. Livingstone
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1900, bookyear1902
