A zoological pocket-book, or, synopsis of animal classification ; comprising definitions of the phyla, classes, and orders, with explanatory remarks and tables / by Emil Selenka ; translated from the third German edition by J. R. Ainsworth Davis.

  • Selenka, Emil, 1842-1902.
Date:
1890
Catalogue details

Licence: Public Domain Mark

Credit: A zoological pocket-book, or, synopsis of animal classification ; comprising definitions of the phyla, classes, and orders, with explanatory remarks and tables / by Emil Selenka ; translated from the third German edition by J. R. Ainsworth Davis. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    Group B. Leptostraca. Small marine Crustaceans, with five cephalic, eight free thoracic, and eight abdominal segments; a forked fcelson. Anterior part of body enclosed in a bivalve shell. Eight pairs of folia- ceous swimming-feet attached to the thorax. Eyes compound, on short stalks. No larval stage. Only known genus, Nebalia. The Crustacean head is often regarded as composed of six segments ; the telson is possibly a segment. —Tr.