Abstract
PROF. BOUVIER points out in his introduction that the pycnogonids of the French fauna have never been studied in systematic fashion. There are memoirs by Hoek on the species found at Roscoff, by Grube on those of S. Malo, and a recent account by Cuenpt of his observations on pycnogonids at Arcachofi. The author has turned to G. 0. Sars' well-known monograph and to that of Dohrn for further information, and from these and from Hoek's work he has borrowed most of the figures used in the present volume. He gives an account of the external morphology, the internal anatomy, and the development and biology, and in a brief discussion of the affinities states his view that the pycnogonids are arachnids. In a short reference to the forms with five pairs of legs, e.g. Decalopoda, he concludes that these are primitive relatively to Colossendeis. Keys are given for the orders, families, genera, and species, and with the help of these and the clear illustrations the determination of any given specimen is fairly easy. This concise memoir will be very useful to collectors on the shores of Great Britain who have an interest in this group.
Faune de France. 7: Pycnogonides.
Prof.
E.—L.
Bouvier
Par. (Fédération française des Sociétés de Sciences naturelles: Office central de Faunistique.) Pp. 70. (Paris: Paul Lechevalier, 1923.) 8 francs.
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Faune de France 7: Pycnogonides. Nature 114, 272 (1924). https://doi.org/10.1038/114272d0
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DOI: https://doi.org/10.1038/114272d0