. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. ENCHYTRAEIDAE 257. Fig. 8. Lumbricillus antarclicus; sperma- theca as reconstruct- ed from sections; a glandular mass en- velopes the whole of the duct. penetrate within the epitheHal layer of the ampulla. The duct is short; the narrow lumen of the duct expands rather suddenly at its upper end to become the cavity of the ampulla; in this sense ampulla and duct are fairly well marked off from each other, though externally there is no very precise delimitation. A complete circle of glands surround
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. ENCHYTRAEIDAE 257. Fig. 8. Lumbricillus antarclicus; sperma- theca as reconstruct- ed from sections; a glandular mass en- velopes the whole of the duct. penetrate within the epitheHal layer of the ampulla. The duct is short; the narrow lumen of the duct expands rather suddenly at its upper end to become the cavity of the ampulla; in this sense ampulla and duct are fairly well marked off from each other, though externally there is no very precise delimitation. A complete circle of glands surrounds the whole length of the duct and embraces the base of the ampulla; the glandular mass is lobed, and consists of the bodies of the cells of the duct epithelium, all the cells being prolonged through the muscular coat, which is visible as a single layer of fibres running longitudinally on the duct; there are no nuclei in the basal portions of the cells internal to the muscular layer. Copulatory glands are present in segments xiii, xiv and xv; they are of moderate size, and leave the dorsal surface of the cord quite free; those in xiii are rather smaller than those of the other seg- ments. The present species is related not distantly to L. lineatus, but appears to be distinguished from it by the shortness of the male funnel; it is alone among the southern species of this genus in having these propor- tions. Genus Enchytraeus, Henle Enchytraeus albidus, Henle. Enchytraeiis humicultor, Ude, 1896, p. 26. Efichytraeus humicultor var. similis, Ude, 1896, p. 27. Enchytraeus albidus, Michaelsen, 1903, p. 142. Enchytraeus albidus, Michaelsen, 1905, p. 8. Enchytraeus albidus, Michaelsen, 1905 a, p. 17. Enchytraeus albidus, Benham, 1905, p. 295. St. 122. 14. xii. 26. Maiviken, West Cumberland Bay, South Georgia. Shore coll., fresh water. Several specimens, mostly with signs of sexual maturity. Same locality and date. Under stones near upper lake; along with E. australis. Several specimens
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