TY  - BOOK
AU  - Hertwig,Richard
TI  - Report on the Actiniaria: dredge by H. M. S. Challenger during the years 1873-1876 
PY  - 1882///-1888
CY  - London
PB  - Her Majesty's Stationery Office, 
N1  - 2 v. supplement (1888)
ER  -