Discovery reports (1937) Discovery reports discoveryreports14inst Year: 1937 Fig. 9. a, E. liicem, median lobe of the left copulatory organ of a male from in front, x 67. b, Thysanoessa vicina, terminal proximal and lateral processes of the left copulatory organ of a male from behind, x 266. Both figures show the rudiments of the processes of the succeeding moult at the bases of the existing processes. veloped in the normal way in one of the specimens examined of E. lucens).' I have found no reference to this in any other work by Hansen, nor have I ever seen the spine- shaped process in E. l
Discovery reports (1937) Discovery reports discoveryreports14inst Year: 1937 Fig. 9. a, E. liicem, median lobe of the left copulatory organ of a male from in front, x 67. b, Thysanoessa vicina, terminal proximal and lateral processes of the left copulatory organ of a male from behind, x 266. Both figures show the rudiments of the processes of the succeeding moult at the bases of the existing processes. veloped in the normal way in one of the specimens examined of E. lucens).' I have found no reference to this in any other work by Hansen, nor have I ever seen the spine- shaped process in E. lucens. Distribution. The stations at which E. lucens was taken are shown in Figs. 10 and 11. It occurs constantly in all but the coldest water of the sub-Antarctic Zone, though it may occur in that too as far south as the Antarctic convergence. It has never south of the convergence. It occurs also in a narrow belt of the coldest water of the sub- tropical Zone just north of the subtropical convergence. Of the stations at which it was taken the three south-east of the Cape had the highest surface temperatures, that of the first of them, 20-1° C, being the highest. This is warmer water than they are usually found in, and their presence in it is accounted for by the shape of the subtropical convergence in this region. To the west of the Cape it lies in 37° S, but to the south of it the Agulhas Current causes it to bend sharply southwards. Its position varies more here than elsewhere (except perhaps south of the Brazil Current), and a mixing of sub-Antarctic and subtropical waters takes place throughout a large area. But the area would not include the northernmost two of the three stations at which E. lucens occurred. Although they were far from the convergence to the south they were
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