TY  - BOOK
AU  - Herdman,William A.
TI  - Report on the Tunicata: collected during the voyage of H. M. S. Challenger during the years 1873-1876 
PY  - 1882///-1888
CY  - London
PB  - Her Majesty's Stationery Office, 
N1  - Part 1. : Ascidiae simplices; Part 2. : Ascidiae compositae
ER  -