REPORT ON CORALS— HYDROCORALLIN^. 83 



Station 3. South of the Canary Islands, lat. 25° 45' N, long. 20° 12' W, 1525 

 fathoms. 



Station 24. Off Sombrero, Danish West Indies. 390 fathoms. 



Station 171. North of the Kermadec Islands, lat. 28° 33' S., long. 197° 50' W. 

 600 fathoms. 



Station 236. Lat. 34° 58' N, long. 139° 30' E. Between Vries Island, Oosima, 

 and Cape Sagami, Japan. 775 fathoms. 



Species of Stylasteridje at present known. 



A list of all the species of Stylasteridse, at present described, here follows. The list 

 is not to be considered as constituting a revision of the species. Access has been had 

 to only a limited number of specimens, and as in the case of many of the species good 

 figures, or indeed any figures at all, are wanting, and the description founded on a 

 false theory as to the nature of the organisms described are necessarily imperfect, a 

 revision has not been found possible. Indeed, such can only be carried out when the 

 soft structures of more species shall have been examined. The list, such as it is, 

 represents an attempt to draw attention to all the species of which an account has been 

 published. Few references are given, those only in each case being selected which are 

 the latest and will supply all further references required when consulted, or those which 

 indicate figures of the species described. The localities are appended in most instances 

 in order to show the distribution of the members of the family. 



Last of all the Species of Stylasteridce at present known. 1 



Family Stylasteridce, Gray (Ann. and Mag. Nat. Hist., vol. xix., 1847). 



(I.) Genus Sporadopora, Moseley, Phil. Trans. Roy. Soc, 1878, part 2, p. 474. 

 Polypora, Moseley, Proc. Roy. Soc, No. 172, 1876, pp. 94, 95. 

 Species 1. Sporadopora dichotoma, Moseley, pi. i. figs. 3, 4 ; pi. ii. figs. 1, 2, 9. 

 Polypora dichotoma, Moseley, Proc. Roy. Soc, No. 172, 1876, pp. 94, 95, 

 Challenger, Feb. 14, 1876, in lat. 37° 17' S., long. 53° 52' AV., off the 

 mouth of the Rio de la Plata, from 600 fathoms. 



(II.) Genus Pliobothrus, Pourtales, Bull. Mus. Comp. Zool., Harvard, No. 7 ; Deep-Sea 

 Corals, p. 57. See 111. Cat. Mus. Comp. Zool., Harvard, No. 10. 



1 In the preparation of the present list I was kindly assisted by Dr F. Briiggemann, of the British Museum. 



