4SO 



DISCOVERY REPORTS 



(Plate XI, fig. 6), and others which, although the specimens are more than 2 cm. long, 

 branched, and with as many as six series of zooecia, have few secondary branches, and 

 these only on the proximal parts, and consisting of few zooecia, often of only one 

 (Plate XI, fig. 5). It is thus not surprising that no secondary branches were present in 

 Kluge's material, and the very close agreement with his description in other ways puts 

 the identification beyond doubt. 



I 1 I . I l I 







•5mm 



Fig. 45. A, B. Camptoplites bicornis var. magna (Kluge). St. 1652, Ross Sea. Frontal and basal views of an 

 ovicell on a main branch. C, D. C. lewaldi (Kluge). St. 1652, Ross Sea. Frontal and basal views of 

 an ovicell on a secondary branch. In Fig. D note the process connecting the ovicell and the distal 

 zooecium. E, F. C. giganteus (Kluge). St. WS 33, South Georgia. Frontal and basal views of an ovicell 

 on a secondary branch. G. C. lewaldi (Kluge). St. 1652, Ross Sea. Large avicularium. 



d.z. distal zooecium. 



The axillary chamber forms runners. Ovicells, which were absent in Kluge's material, 

 are present in mine (Fig. 45 C, D). They are of the same general pattern as those of the 

 other species of the bicornis group, and are rather markedly reduced (see p. 436). Where 

 the distal zooecium is at an angle to the fertile zooecium, a process from its proximal end 

 connects it with the ovicell (Fig. 45 D). Elsewhere in the same colony the two zooecia 

 are more in line and the proximal end of the distal zooecium lies basally to the ovicell 

 and is connected with it in the usual way. 



A specimen of Camptoplites lewaldi from St. 1652 has one exceptionally large long- 

 headed avicularium (Fig. 45 G). In it the upper head-angle is more obtuse and the 

 lower more acute than in those of ordinary size. The beak forms a greater proportion 



