REPORT ON THE ANTIPATHARIA. 181 



It will be seen from the foregoing list that the whole of the species obtained during 

 the voyage of the Challenger are probably new to science. This is largely accounted for 

 by the fact that the majority of the species were obtained from regions not previously 

 investigated, added to which, six of the species occur at depths from 1070 to 2900 

 fathoms, whereas no species previously described has been met with at a depth greater 

 than 890 fathoms. The chief areas from which Antipatharia have previously been 

 recorded are the West Indies, the Mediterranean, the Indian Ocean, and the East Indies. 

 The Mediterranean and Indian Ocean proper were not visited by the Challenger, and 

 although Bermuda and St. Thomas were visited, I am not aware that any Antipatharia 

 were obtained there. It is altogether remarkable that no Antipatharia were, so far as 

 I am aware, obtained in the North Atlantic between Stations 1 and 100, although 

 species have previously been obtained near both the east and west shores of the Atlantic, 

 and also off Greenland. Only four of the species come from the East Indies, and two of 

 these belong to a new subfamily (Schizopathinse). The Pacific Ocean is, on the other 

 hand, represented by ten species, whereas only five species altogether had previously 

 been obtained there, most of them from comparatively shallow water. It is also 

 interesting to note that of the nineteen species of Antipatharia included in the 

 Challenger Collection, eight were obtained south of lat. 40° S. 



Our knowledge of the distribution of the Antipatharia is as yet too incomplete to 

 admit of general conclusions being drawn. I have, however, arranged the information 

 at present available in tabular form, in order to facilitate further investigation on the 

 subject. Two species are described of which the habitat is not known ; these are Anti- 

 pathes pectinata, Lamk. (sp. incert. sed.), and Cirripaihes paucispina, n. sp. The 

 remaining ninety-six species have been arranged in eight more or less artificial areas, 

 according to the information obtainable on the subject. The following table shows the 

 divisions adopted, and the number of species recorded from each : — 



I. North Atlantic, 10 species. 



II. Mediterranean, 8 ,, 



III. West Indies, 27 „ 



IV. South Atlantic, 5 



V. Indian Ocean, 26 species. 



VI. East Indies, 17 ,, 



VII. North Pacific, 7 



VIII. South Pacific, 16 



I. North Atlantic (excluding West Indies and Mediterranean). 



Stichopathes gracilis (Gray). 

 Avtipathes furcata, Gray. 

 Antipailiella gracilis (Gray). 

 ,, boscii (Lamx.). 



Aphanipathes ivollastoni (Gray MS.). 



Pteropathes fragilis, n. sp. 

 [Antipathes] arctica, Liitken. 



,, spinescens, Gray. 



,, squamosa, Koch. 



,, alopecuroides, E. and S. 



