REPORT ON THE ANTIPATHARIA. 



189 



Table showing the Bathymetrical Range of all the Species of 

 Antipathaeia, so far as known — continued. 



The foregoing tables bring out several points of considerable interest. Perhaps one 

 of the most important is the fact that no species belonging to the subfamily Anti- 

 pathinse are known to occur at depths exceeding 900 fathoms. Indeed, only two 

 species are known which extend beyond the continental zone ; both occur in the 

 Caribbean Sea, and extend from the littoral zone into deep water. Stichopathes 

 pourtalesi is perhaps the most abundant species in the West Indies, and has a wide 

 range — 45 to 878 fathoms. Parantipathes columnaris (Duch.) is also frequent in 

 the same area, and extends from 73 to 861 fathoms. With these two exceptions the 

 bathymetrical range of the Antipathinse is from 5 feet to 400 fathoms. The Schizo- 

 pathinse, on the other hand, are chiefly abyssal forms, but a few species occur at depths 

 between 300 and 500 fathoms. An interesting comparison may be instituted between 

 the form and thickness of the corallum in various Schizopathinse, and the depths at 

 which the respective species occur. In Schizopathes crassa (1900 fathoms) and 

 Schizopathes affinis (1070 and 1428 fathoms), the stem is slender and bears two rows 

 of elongate slender branches. In Schizopathes conferta, obtained off Prince Edward 

 Island in 310 fathoms, the stem and branches are much thicker and more densely 

 clothed with spines. Four species of Bathypathes are described, the types of which 



