838 . 
before anus, with well pigmented glandular body. 
A large genus, of which half of the known species from the East 
Indian region. Though world wide in warm seas in depths of from 70 
to 2200 meters they are usually found in depths of 800 meters or less. 
Likely when extensive deep sea collections are made in hitherto little 
known waters many more species will be found. 
