266 DISCOVERY REPORTS 



Ophiactis resiliens, Lyman 



OpJiiactis resiliens, Lyman, 1882. Sci. Results H.M.S. 'Challenger'. Ophiuroidea, p. 115, 



pi. XX, figs. 7-9. 

 O. Jiomentis, Farquhar, 1907. Notes on New Zealand Echinoderms with description of a nezv 



species. Trans. New Zealand Inst., xxxix, p. 125. 

 O. resiliens, Mortensen, 1924. Echitioderms of New Zealand and the Auckland-Campbell Islands. 



II, Ophiuroidea. Papers from Dr Th. Mortensen 's Pacific Exped., xx (Vid. Medd. Dansk 



Naturh. Foren., 77), p. 124. 

 For other literary references see my paper of 1924, loc. cit. 



St. 941. 20. viii. 32. Cook Strait, 128 m. i specimen. 



This is a typical specimen of this fine species. It may be mentioned that the dorsal 

 arm plates are partly broken up into smaller, irregular plates ; this feature I have not 

 observed in the specimens from New Zealand on which my statements in the work 

 quoted were based, whereas it occurs not uncommonly in Australian specimens. 

 Farquhar, however, has observed it in specimens of his O. nomentis, which, as I have 

 shown in my paper quoted, is identical with O. resiliens. 



Ophiactis profundi, var. Novae-Zelandiae, Mortensen 



Ophiactis profundi, var. Novae-Zelandiae, Mortensen, 1924. Echinoderms of New Zealand and 

 the Auckland-Campbell Islands. II, Ophiuroidea. Papers from Dr Th. Mortensen 's Pacific 

 Exped., XX (Vid. Medd. Dansk Naturh. Foren., 77), p. 128. 



St. 941. 20. viii. 32. 40° 53' S, 174° 47' E, Cook Strait, New Zealand, 128 m. 5 specimens. 



There is no doubt that these specimens are identical with the form which I described 

 in my paper on the Ophiuroidea of New Zealand as a variety of Ophiactis profundi, 

 Liitken and Mortensen. It is possible also that this O. profundi may be identical with 

 the West Indian O. plana, Lyman. 



Not having had the opportunity of comparing directly any West Indian specimen 

 with the Pacific O. profundi or the var. Novae-Zelandiae, and as the West Indian form 

 has never been sufficiently well figured (the photographic figures given by H. L. Clark 

 in his Catalogue of the Recent Ophiurans, pi. x, figs. 1-2, do not show all the important 

 details clearly), I shall refrain from taking a definite position on the question of the 

 identity or distinctness of the Atlantic and the Pacific forms ; I deem it therefore the best 

 course to identify these specimens as — what they are sure to be — O. profundi, var. 

 Novae-Zelandiae, leaving it to future researches to prove or disprove their identity with 

 the West Indian O. plana. 



Family AMPHIURIDAE 



Amphiura magellanica, Ljungman 



Amphiura magellanica, Koehler, 1923. Swedish Antarct. Exped. Asteries et Ophiures, p. 112. 

 A. magellanica, Mortensen, 1924. Echinoderms of New Zealand and the Auckland-Campbell 



Islands. II, Ophiuroidea. Papers from Dr Th. Mortensen 's Pacific Exped., xx {\'\d. Medd. 



Dansk Naturh. Foren., 77), p. 132. 

 For references to the older literature see the latter work, loc. cit. 



