A MONOGRAPH OF THE EXISTING CRINOIDS 337 



was said to occur from Simon's Bay, Capo of Good Hope, to Zanzibar, Madagascar, 

 the Seychelles, Saya de Malha, Cargados Carajos, and Mauritius, in 0-55 meters. 



In 1924 Dr. Torsen Gisl6n mentioned the sluggishness and inactivity of this 

 species as described by Dr. H. L. Clark. In 1928 Gisldn published notes on the small 

 specimen from the Challenger collection that had been recorded as Antedon dubenii by 

 Dr. P. H. Carpenter. 



In a paper on a collection of crinoids from the Indian Ocean and the Bay of 

 Bengal published in 1932, I listed all the localities from which Tropiometra carinata is 

 known. 



In 1933 Dr. Torsten Gisl6n recorded and gave notes on 18 specimens of Tropio- 

 metra carinata that had been collected by Dr. Th. Mortensen at St. Helena. He made 

 detailed comparisons between specimens of T. carinata from Zanzibar and Portuguese 

 East Africa and others from St. Helena and from Tobago (the last collected by 

 Mortensen), and he compared both with specimens in the Copenhagen Museum that 

 had been determined as T. encrinus by the author. He figured cirri from specimens 

 from Tobago, St. Helena, and Portuguese East Africa. He said ho must confess that 

 he failed to find any tlifferences in regard to the proportions of the cirrus segments, and 

 as the carination of the arms in specimens from the West Indies and from East Africa 

 seemed to him identical, he was forced to regard T. picta as a synonym of T. carinata. 

 He remarked that the specimens from St. Helena usually have a slightly greater num- 

 ber of cirri than examples from other localities, but said that he could not regard this 

 difference as even a varietal character. The cirrus segments are also a little more 

 numerous in the specimens from St. Helena (24-27, or even 29) ; but he recalled that I 

 mentioned a specimen of T. carinata from South Africa with 28 cirrus segments. He 

 regarded T. encrinus, however, as a valid form. In 1938 Gisl6n recorded Tropio- 

 metra carinata from Pieter Faure stations 2001 and 2012, and under the name Tropio- 

 metra clarki described in detail a specimen from Mortensen 's station 66 in False Bay. 



TROPIOMETRA CARINATA INDICA A. H. Oark 



[See vol. 1, pt. 1, fig. 265 (ventral view of centrodorsal) , p. 257.) 



Antedon carinata Bell, Sci. Trans. Roy. Dublin Soc, ser. 2, vol. 3, 1887, p. 645 (Ceylon); Proc. 

 Zool. Soc. London, 1888, p. 387 (Bay of Bengal [ = Ceylon]) .—P. H. Carpenter, Challenger 

 Reports, Zoology, vol. 26, pt. 60, 1888, pp. 200, 202 (Ceylon).— Chadwick, Report Ceylon 

 Pearl Oyster Fisheries, pt. 2, Suppl. Report 11, 1904, p. 153 (occurs at Ceylon), p. 154 (stations 

 LIV, LXVIII).— Hartlatjb, Mem. Mus. Comp. Zool., vol. 27, No. 4, 1912, p. 374 (Ceylon). 



Antedon adeonae Bell, Sci. Trans. Roy. Dublin Soc, ser. 2, vol. 3, 1887, p. 645 (Ceylon); Proc. 

 Zool. Soc. London, 1888, p. 387 (Ceylon; Tuticorin, Madras). 



Tropiometra carinata (part) A. H. Clark, Smithsonian Misc. Coll., vol. 50, pt. 3, 1907, p. 349 (in- 

 cluded under this name up to 1911). 



Tropiometra sp. A. H. Clark, Notes Leyden Mus., vol. 33, 1911, p. 189 (Indian Ocean; notes). 



Tropiometra encrinus (part) A. H. Clark, Proc. U. S. Nat. Mus., vol. 40, 1911, p. 36 (Cej-lon); 

 Crinoids of the Indian Ocean, 1912, p. 177 (Galle, Ceylon; 7India; characters; Indian Ocean). — 

 Reichensperoeb, Abh. Senck. naturf. Ges., vol. 35, No. 1, 1913, p. 106 (Ceylon; detailed 

 discussion; considered identical with carinata). 



Tropiometra indica A. H. Clark, Proc. U. S. Nat. Mus., vol. 43, 1912, p. 384 (identity), pp. 401, 

 402 (characters; comparison with T. audouini; Ceylon and adjacent parts of India); Smith- 

 sonian Misc. Coll., vol. 61, No. 15, 1913, p. 39 (published references to specimens in the B. 

 M.; Ceylon; Tuticorin, Madras; characters); Bcitrage zur Kenntnis der Meeresfauna Westa- 

 frikas, Echinod. II, Crinoidea, 1914, p. 313 (range; Ceylon and the adjacent portions of southern 



