A MONOGRAPH OF THE EXISTING CRINOIDS 287 



chijima; 164 meters; July 31, 1914 [Gisl6n, 1922, 1924]. This is a young example of 

 Tropiometra macrodiscus; see p. 277. 



Norfolk Island [P. H. Carpenter, 1888; A. H. Clark, 1911, 1912]. Dr. Maxi- 

 milian Holly, who has charge of the invertebrate collections in the Naturhistorisches 

 Museum in Vienna, has been so very kind as to write me that there is no Antedon 

 marmorata in the collections under his care -indeed there are no specimens of any sort 

 from Norfolk Island. He says that either Carpenter's record was a mistake, or the 

 specimen has been lost. 



Geographical range. From the northeastern coast of Ceylon and the adjacent 

 portion of India north to Waltair, about three miles north of Vizagapatam; ?Java. 



Bathymeirical range. From the low tide mark down to 9 meters. 



History. In a paper on the comatulids of the Leyden Museum published in 

 1881 Dr. P. H. Carpenter said that this museum contains a small and mutilated 

 specimen of Antedon carinata from the Indian Ocean which differs from specimens 

 obtained at Mauritius in the somewhat larger relative size of the lower pinnules, and 

 in the greater smoothness of the outer portions of the arms. In a paper on the 

 comatulids of the Hamburg Museum published in 1882 he recorded and gave notes 

 upon four specimens from Java, comparing them with typical carinata from Mauritius. 

 In the Challenger report upon the stalked crinoids published in 1884 Carpenter men- 

 tioned the occurrence of Antedon carinata in Java. In the Challenger report upon 

 the comatulids published in 1888 Carpenter included Java among the localities for 

 Antedon carinata, but with a query, and said he had a strong suspicion that an indi- 

 vidual from Norfolk Island which he saw in Vienna in 1880 with the museum name 

 Antedon marmorata is very closely allied to, if not identical with, Antedon carinata; 

 but he said he would prefer to leave the point undecided for the present until he 

 could make a more detailed examination of the Vienna specimen (see above). He 

 said that he must confess to a certain amount of doubt respecting the presence of 

 Antedon carinata at Java, as the Hamburg label records, and can only wait with 

 interest for further information on the subject. 



In 1888 Prof. F. Jeffrey Beh 1 included Antedon carinata in a list of the crinoids 

 of the Sea of Bengal, "taking as southern boundaries Ceylon on the west and the 

 Nicobars on the east." 



In my first revision of the old genus Antedon published in 1907, I included this 

 form in Tropiometra carinata, but in 1908 I referred to it as Tropiometra sp., saying 

 that it is known only from the Indo-Pacific-Japanese faunal area. In a paper on 

 the crinoids of the Copenhagen Museum published in 1909, I said that a specimen 

 of Tropiometra carinata from somewhere in the East Indies has the brachial carina- 

 tion but slightly marked and agrees well with specimens at hand from the "South 

 Pacific" (in reality Rio de Janeiro; see p. 319) taken by the United States Exploring 

 Expedition. This specimen, and also two others which have no data in regard to 

 locality, are peculiar in being white. At the same time I identified a specimen bear- 

 ing Liitken's manuscript name Antedon encrinus as Tropiometra carinata. In a paper 

 on the crinoids of the Leyden Museum published in 1911, I gave notes upon a speci- 

 men from the Indian Ocean which I identified as Tropiometra sp., saying that it 

 appeared to belong to an undescribed species that occurs westward from the Indian 

 Ocean to the South Sea Islands. I said that I had not yet been able to examine a 



