TY  - JOUR
A1  - Gray, J. E.
JO  - Proceedings of the Zoological Society London
SP  - 35
EP  - 39
C1  - 23: 35-39
TI  - An arrangement of the Families of Echinida, with Descriptions of some New Genera and Species
UR  - https://www.biodiversitylibrary.org/page/30747882
VL  - 23
PY  - 1855
Y2  - 2026-09-15
ER  -