. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. NEMERTEANS 241 is almost as thick as the longitudinal layer of muscles and between two and four times as thick as the basement membrane and circular muscles together. These last are about equal in thickness. There are many large gland cells in the epithelium; they may be the black specks of the living animal. The sickle-shaped bodies similar to those first de- scribed by Marion (1872) are found in the epithelium of all forms; they appear to resist acid and are yellowish brown in colour (Fig. 14)


. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. NEMERTEANS 241 is almost as thick as the longitudinal layer of muscles and between two and four times as thick as the basement membrane and circular muscles together. These last are about equal in thickness. There are many large gland cells in the epithelium; they may be the black specks of the living animal. The sickle-shaped bodies similar to those first de- scribed by Marion (1872) are found in the epithelium of all forms; they appear to resist acid and are yellowish brown in colour (Fig. 14). The fibre-containing basement mem- brane stains deeply with haematoxylin, and numerous minute ducts can be seen pene- trating it, especially on the head. Often the glands are themselves in the membrane but sometimes they are more deeply placed in the longitudinal muscles. Farther down the body they are much less 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 Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press


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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti