TY  - JOUR
T1  - Croonian Lecture: Evolution and Symmetry in the Order of the Sea-Pens
JF  - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934)
VL  - 90
IS  - 626
SP  - 108
EP  - 135
PY  - 1918/04/02/
UR  - http://dx.doi.org/10.1098/rspb.1918.0004
M3  - doi:10.1098/rspb.1918.0004
AU  - Hickson, S.
ER  -