@book {21, title = {An account of the alcyonarians collected by the Royal Indian Marine Survey Ship Investigator in the Indian Ocean. Part 1. The Alcyonarians of the deep sea}, year = {1906}, pages = {1-132, pls. 1-10}, publisher = {The Indian Museum}, organization = {The Indian Museum}, address = {Calcutta}, keywords = {Acanella, Ceratoisis gracilis, isididae}, author = {Thomson, J. Arthur and Henderson, W.D.} }