4 o6 DISCOVERY REPORTS 



presence of a small ovary, before development of any trace of the ovicell which appears 

 late. 



Ovicell large, taller than wide, entooecium radially striated, the spines remaining 

 intact behind ovicell. Connexion with distal zooecium as in other species of the genus. 



Avicularia of two kinds, frontal and basal, both kinds unstalked and rigidly attached. 



Frontal avicularia slightly curved and placed on the proximal border of the opesia 

 (Fig. 31 A). 



Basal avicularia larger, stouter, not curved, attached to the middle of the basal surface 

 of the expanded part of a few zooecia, projecting outwards (Fig. 31 B). 



Remarks. This species appears to be related to Cornucopina grandis (Busk, 18526, 

 p. 42), which is also known from New Zealand. It differs from C. grandis in the shape 

 of the opesia and its relation to the axis of the branch, in the narrower, more curved, 

 unhooked cryptocyst (see Harmer, 1902, p. 290), in the more numerous spines and the 

 absence of any trace of a spine-bearing process (cf. Figs. 30 A and 31 A), in the presence 

 of frontal avicularia and the smaller size of the basal ones, and in the absence of any 

 tendency for the tips of the branches to curl. 



9. Cornucopina moluccensis (Busk). Fig. 32 A, B. 



Bicellaria moluccensis Busk, 1884, p. 34, pi. vi, fig. 4. 



Cornucopina moluccensis Harmer, 1926, pp. 422, 424, pi. xxix, figs. 7-10, 13-16 (synonymy); 

 Hasenbank, 1932, p. 339, text-fig. 13 A-F. 



Station distribution. Not represented in the Discovery collections. 



Geographical distribution. Indian Ocean (Hasenbank); Malay Archipelago (Busk; Harmer); 

 New Zealand (Terra Nova). 



These specimens agree with Cornucopina moluccensis in the appearance of the colony 

 and the general form of the zooecia. The spines have the same arrangement, and the 

 avicularia are similar in position and form. Ovicells have not been found. The opesia 

 extends to the end of the spine-bearing process, and there is a rather long cylindrical 

 region between the tubular basal part of the zooecium and the opesia (Fig. 32 B). In 

 these respects this material corresponds to Harmer 's fig. 15. It differs from that figure, 

 and from C. moluccensis in general, in the large size of the swelling of the proximal 

 zooecium from which the daughter zooecium springs (Fig. 32 A, B) and in the shortness 

 of the digitiform process. The avicularia are all of the long trumpet-shape with trans- 

 verse mandible (Harmer, pi. xxix, fig. 7) and are variable in size. 



10. Cornucopina angulata (Kluge). 



Bicellaria angulata Kluge, 1914, p. 641, text-fig. 23. 



Cornucopina angulata Harmer, 1926, p. 422. 

 Station distribution. Not represented in the Discovery collections. 

 Geographical distribution. Southern Ocean, 2450 m. (Kluge). 



I have not seen a specimen of Cornucopina angulata. It may prove to be a synonym 

 of C. naviculars Busk (1884, p. 32, pi. vii, fig. 2) from Challenger St. 122, a deep-water 



