1828 | 1833 |
Bosc, L. A. G., 1830. Histoire naturelle des Vers Vol. 3. Paris. (2nd ed.) (PDF File)
Thompson, J. V., 1830. On Polyzoa, a new animal discovered as an inhabitant of some Zoophites - with a description of the newly instituted genera of Pedicellaria and Vesicularia, and their Species Memoir 5. King & Ridings, Cork. (pp.89-102 (treatment?))
Bronn, H G., 1831. Italiens Tertiär-Gebilde und deren organische Einschlüsse. (Karl Groos, Heidelberg). 176pp.
Ehrenberg, C. G., 1831. Symbolae Physicae, seu Icones et descriptiones Corporum Naturalium novorum aut minus cognitorum, quae ex itineribus per Libyam, Aegyptum, Nubiam, Dongalam, Syriam, Arabiam et Habessiniam ... studio annis 1820-25 redirerunt Berolini?, Berlin. (Pars Zoologica, v.4. Animalis Evertebrata exclusis Insectis.)
Johnston, George, 1832. A descriptive catalogue of the Recent zoophytes found on the coast of North Durham. Transactions of the Natural History Society of Northumberland, Durham and Newcastle-upon-Tyne 2: 239-272.