66 BULLETIN OF THE 
225-252 fathoms, 1880. Some of these specimens must have been at least 
20mm. in diameter. They agree in all respects with the larger specimens 
figured by Moseley. 
This coral is remarkable for having a wider range, in depth and geographi- 
cally, than any other known species. It was first taken by Pourtalés, off 
Florida, in 350 and 450 fathoms, on the Bache; and in 100 fathoms, off 
Barbados, on the Hassler. By the Challenger it was taken in the North 
Atlantic, off the Azores and off Bermuda, in 32 to 1075 fathoms; in the South 
Atlantic, in 1900 to 2650 fathoms; in the South Indian Ocean, in 1600 to 1950 
fathoms; in the Malay Archipelago and West Pacific, in 360 to 2440 fathoms; 
east of Japan, in 2300 to 2900 fathoms ; off Valparaiso, in 1375 fathoms. 
Studer also records it from the Pacific Ocean. 
The Fungiacyathus fragilis of Sars closely resembles this coral, but according 
to the figures its septa are not united into groups, nor are there any transverse 
dissepiments nor trabicule in the four specimens described, although some of 
them were larger than many of the specimens of Bathyactis, in which these 
characters are well marked. A larger series of the arctic form may, however, 
serve to unite them hereafter. 
JULY, 1888. 
