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V.—On Some Points in the Anatomy and Habits of the Lophogastrid Crustacea

Published online by Cambridge University Press:  06 July 2012

S. M. Manton
S. M. Manton
Affiliation:
Demonstrator in Comparative Anatomy in the University of Cambridge, and Fellow of Girton College.
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Extract

In the following pages two separate subjects are considered which are connected only by their relation to the same animals. The first concerns the feeding mechanisms and habits of the Lophogastridæ, but unfortunately no living animals could be examined.

As a result of some work on the feeding mechanisms of the Malacostraca (Cannon and Manton, 1927, in the press, etc.) it was concluded that in the Syncarida, Peracarida, and Eucarida a primary filter-feeding habit exists. This has been modified or given up entirely in the higher forms of each division in favour of feeding on larger masses of food. In the adult Hemimysis, Anaspides, and Nyctiphanes the filter-feeding mechanisms are essentially similar. The maxilla forms a combined suction pump and filter and draws a current of water through a filtering comb of setæ borne on its proximal endite. This comb is scraped by the basal part of the first trunk limb, which transfers the collected food forwards on to the proximal endite of the maxillule by which it is pushed into the mouth.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 56 , Issue 1 , 1929 , pp. 103 - 119
Copyright
Copyright © Royal Society of Edinburgh 1929

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