TY  - JOUR
T1  - On the Echinoidea of the 'Porcupine' Deep-Sea Dredging-Expeditions
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 164
SP  - 719
EP  - 756
PY  - 1874/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1874.0021
M3  - doi:10.1098/rstl.1874.0021
AU  - Thomson, W.
ER  -