OPHIODERMATIDAE— OPHIOLEPIDAE 301 



Africa, fig. 77, p. 375). On the whole, in spite of the unfortunate fact that only a single 

 specimen is at hand, and we thus do not know whether it is adult or only a young 

 specimen, there can be no doubt that it is a distinct species, the genus Ophionereis being 

 thus represented by two species in New Zealand seas. To the other New Zealand species, 

 Ophionereis fasciata (Hutton), the present species is not closely related. 



Family OPHIODERMATIDAE 

 Pectinura cylindrica (Hutton) 



Pectimtra cylindrica, Mortensen, 1924. Ecliinoderms of New Zealand and the Auckland-Campbell 

 Islands. II, Ophiwoidea. Papers from Dr Th. Mortensen 's Pacific Exped., XX (Vid. Medd. 

 Dansk Naturh. Foren., 77), p. 172, figs. 35, 1-2. 



P. cylindrica, Mortensen, 1925. Ibid., III-V, p. 391. 



For earlier literary references, see my paper of 1924, he. cit. 



St. 941. 20. iii. 32. 40° S3' S, 174° 47' E, Cook Strait, New Zealand, 128 m. Numerous 

 specimens. 



I may recall the fact that the species is viviparous and hermaphrodite (op. cit., 1925). 



Ophioderma longicauda, var. guineense, GreeflF 



Ophioderma guineense, Greeff, 1881. Echinodermen beobachtet auf einer Reise nach der Guinea- 



Insel Sao Thome. Zool. Anzeiger, v, p. 156 

 O. longicauda, var. guineense, Koehler, 1914. Meeresfauna Westafrikas. Echinoderma, p. 173, 



pi. ix, figs. 1-3. 



St. 283. 13. viii. 27. Off Annobon, Gulf of Guinea, 18-30 m. 4 specimens. 



I quite agree with Koehler that this form from the Gulf of Guinea is not sufficiently 

 different from the West Atlantic and Mediterranean O. longicauda to rank as a separate 

 species. It may even be doubted whether it deserves the rank of a separate variety. But 

 it is not the place here to enter on a detailed study of this question. 



Family OPHIOLEPIDAE 



Ophiozonella falklandica, n.sp. 



St. WS 212. 30. V. 28. 49° 22' S, 60° 10' W, 242 m. ca. 10 adult specimens, and a great number 

 of young ones. 



St. WS 244. i8. vii. 28. 52° 00' S, 62° 40' W, 253 m. Several specimens. 



St, WS 818. 17.1.32. 52° 31' S, 63° 25' W, 272-278 m. 4 specimens. 



St. WS 819. 17. i. 32. 52° 45' S, 62° 27' W, 329-242 m. 4 specimens. 



St. WS 820. 18.1.32. 52° 53' S, 61° 51' W, 351-367 m. 6 specimens. 



St. WS 821. 18.1.32. 52° 56' S, 60° 55' W, 461-468 m. I specimen. 



St. WS 839. 5. 11. 32. 53° 30' S, 63° 29' W, 403-414 m. i specimen. 



St. WS 871. I. iv. 32. 53° 16' S, 64° 12' W, 336-341 m. I specimen. 



Diameter of disk of largest specimen 10 mm. ; arms rather robust, scarcely exceeding 

 three times the diameter of disk. 



Dorsal side of disk covered with coarse, but smooth scales, among which the primary 

 plates are usually very conspicuous ; in the younger specimens there are only some few 



