. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ncm FIG. 8. A, Transverse section of lateral nerve cord and accompanying muscle (ncm) in Cunconemcrtcs gracilis Coe. B, Same in Balananemertcs chuni Burger. C, Section of lateral nerve cord in Planktoncmertes agas- sizii Woodworth, showing the origin of dorsal lateral and ventral periph- eral nerves. Proboscidial nerves.—The proboscis is large and highly spe- cialized in most of the pelagic nemerteans, with a powerful mus- culature and a thick epithelial lining of secretary and sensory cells in addition to the minute sickel-


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ncm FIG. 8. A, Transverse section of lateral nerve cord and accompanying muscle (ncm) in Cunconemcrtcs gracilis Coe. B, Same in Balananemertcs chuni Burger. C, Section of lateral nerve cord in Planktoncmertes agas- sizii Woodworth, showing the origin of dorsal lateral and ventral periph- eral nerves. Proboscidial nerves.—The proboscis is large and highly spe- cialized in most of the pelagic nemerteans, with a powerful mus- culature and a thick epithelial lining of secretary and sensory cells in addition to the minute sickel-shaped weapon with which it is provided. Consequently it requires an abundant supply of nerves. In some forms these are provided by means of a pair of large nerve stems arising from the points where the ventral commissure joins the ventral brain lobes (Fig. i). This pair of large nerves divides into the definite number of proboscidial nerves. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology