. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Ascarid from the Sperm-iohale, 213 (fig. 2, I'.), separated by valves from the muscular portion. It is witliout the sigmoid curve common in allied species, and is thickest near its posterior end. Here it measures up to 1*1 mm. in diameter, while the length o£ the organ is only 1 mm. The intestine is much wider at its commencement Fig. Anisakis physeteris, female. Posterior portion of oesophagus aud anterior portion of intestine. intestine; ces., oesophagus; v., ventric
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Ascarid from the Sperm-iohale, 213 (fig. 2, I'.), separated by valves from the muscular portion. It is witliout the sigmoid curve common in allied species, and is thickest near its posterior end. Here it measures up to 1*1 mm. in diameter, while the length o£ the organ is only 1 mm. The intestine is much wider at its commencement Fig. Anisakis physeteris, female. Posterior portion of oesophagus aud anterior portion of intestine. intestine; ces., oesophagus; v., ventriculus. than the ventriculus. The excretory pore (fig. 1, e.) is situated, as usual in the genus, between the bases of the ventro-lateral lips. The excretory organ is of the type usual in this group of Ascaridse. The terminal duct, whicli opens at the pore, widens out posteriorly into a flat gland (fig. 3, e.) which runs along the ventral side of the left lateral 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 London, Taylor and Francis, Ltd
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