. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 58 DISCOVERY REPORTS Eucampia (Molleria). Mangin has shown that the formation of a genus Molleria by Castracane, as distinct from the genus Eucampia, Ehr., is not justified and has further shown by the discovery of intermediate forms and forms having the characters of both, that the two " species ", Eucampia balaustium, Castr., and Molleria antarctica, Castr., are really forms of one 10,000 ? ,000 Q 50,000-100,000 I 100,000-500000 ,000. Fig. 28. Distribution of Ch
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 58 DISCOVERY REPORTS Eucampia (Molleria). Mangin has shown that the formation of a genus Molleria by Castracane, as distinct from the genus Eucampia, Ehr., is not justified and has further shown by the discovery of intermediate forms and forms having the characters of both, that the two " species ", Eucampia balaustium, Castr., and Molleria antarctica, Castr., are really forms of one 10,000 ? ,000 Q 50,000-100,000 I 100,000-500000 ,000. Fig. 28. Distribution of Chaetoceros socialis round South Georgia in the December-January 1926-7 survey. For full explanation see legend of Fig. 16. species which he names Eucampia antarctica. Following Mangin we will refer to the type balaustium and type molleria; the former was found on each side of the island and the latter only at the southern end of the island. Their distribution and numbers are shown in Appendix I and Fig. 30. Fragilaria. F. antarctica, Castr., is one of the diatoms which occurred in considerable abundance. Its distribution and numbers are shown in Appendix I and Fig. 31. It will be seen to be absent from waters at the northern end of the island and most abundant where the two streams of Weddell Sea and Bellingshausen Sea waters meet at the south-west side of the island. 3,360,000 were estimated to be present at WS 44. It was also. 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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