Observations sur le Cidaris pseudopistillum Cott. Brissopneustes Aturensis.
1898. Reprint: Actes Soc. Linn. Bordeaux T. LIII; pp. 3-19, 1 plt. h.t. Comes with other short paper by the same author on echinoids. Orig wrps. top of spinea bit worn, contents uncut.
Observations sur le Cidaris pseudopistillum Cott. et Brissopneustes aturensis.
1898. Reprint: Actes Soc. Linn. Bordeaux LIII; 19 pp. 1 plt. h.t. Comes with tow short reprints (11+11 pp.) by the same author on echinoids. Orig. wrps. very good, uncut.