224 DISCOVERY REPORTS 



Family ECHINOMETRIDAE 

 Echinometra lucunter (Linn.) 



Echinometra lucunter,Mortensen, 1933. Echinoderms of St Helena [other than Crinoids). Papers 

 from Dr Th. Mortensen's Pacific Exped., 1914-16, lxvi (Vid. Medd. Dansk Naturh. Foren., 

 93), p. 468. 



For other literary references, see the paper quoted. 



St. 2. 17. xi. 25. Clarence Bay, Ascension. Littoral. 4 specimens. 

 St. 271. 29. xi. 27. Elephant Bay, Angola. Littoral. 2 specimens. 



As for the identification of these specimens as E. lucunter I may refer to the remarks 

 given in my St Helena Echinoderms, loc. cit. I expect that a thorough revision of the 

 Echinometras will give the result that these mid-Atlantic and West African specimens 

 are not simply identical with the West Indian E. hicunter. But this is not the place for 

 such revision; I hope to give it in Part III of my Monograph of the Echinoidea. 



Family HEMIASTERIDAE 



Abatus cavernosus (Philippi) 



(Plate III, figs. II, 12) 



Abatus cavernosus, Mortensen, 1910. Swedish South Polar Exped. Echinoidea, p. 70, pis. ix; 



X, figs. 2, 4, 6-8, 10-13; .xvii, fig. 9; xviii, figs. 3-4; xix, figs. 28-30, 32-33, 35-39, 4^-43. 



45-46, 50-51. 

 A. cavernosus, H. L. Clark, 1917. Hawaiian Echini. Echinoneidae. . . Spatangidae, p. 175. 

 A. cavernosus, H. L. Clark, 1925. Cat. Recent Sea-Urchins Brit. Mus., p. 205. 

 A. cavernosus, Bernasconi, 1925. Result. Primera Exped. a Tierra del Fuego. Equinodermos. 



i. Echinoidea, p. 12, Lam. ii, figs. 4-6. 

 A. cavernosus, Koehler, 1926. Austral. Antarct. Exped. Echinod. Echinoidea, vni, iii, p. 53, 



pi. cix, figs. 1-4, 6-8. 

 A. cavernosus, Grieg, 1929. Echinodermata from the Pahner Archipelago, South Shetlatids, South 



Georgia and Bouvct Islands, Sci. Results Norwegian Antarct. E.xped. 1927-8 and 1928-9, 11, 



p. 12. 

 A. cavertiosus, Grieg, 1929. Sofne Echinoderms from the South Shetlands. Bergens Mus. Arbok, 



1929, m, p. 8. 

 A. cavernosus, Tortonese, 1933. Gli Echinodermi del Museo di Torino. I. Echinoidi. Boll. Mus. 



Zool. Torino, XLiii, p. 160, Tav. xi, fig. 48. 

 A. cavernosus, Tortonese, 1934. Asterie ed Echini della Patagonia e della Tierra del Fuoco. Boll. 



Mus. Zool. Torino, xliv, p. 12. 

 The literature prior to 1910 has been dealt with in my work on the Echinoids of the Swedish 

 South Polar Expedition, where a revision of the Abatus species and related forms was given, 

 clearing up so far as possible the confusion till then reigning in this group of Spatangoids. 

 As for the older literature reference may be made to this revision, only the literary references to 

 works after 1910 being given here. The statement of Grieg that A. cavernosus occurs at 

 Kerguelen is evidently a mistake that has crept in from the old literature. 



St. 27. 15. iii. 26. West Cumberland Bay, South Georgia, no m. i young specimen. 



St. 28. 16. iii. 26. West Cumberland Bay, South Georgia, 168 m. 3 specimens. 



St. 30. 16. iii. 26. West Cumberland Bay, South Georgia, 251 m. Several specimens. 



