Role of maxilla 2 and its setae during feeding in the shrimp Palaemon adspersus (crustacea: decapoda). From: The Biological Bulletin | Date: April 1, 2003| Author: Garm, A.; Hallberg, E.; Hoeg, J. T. | COPYRIGHT 2003 Marine Biological Laboratory. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

The movements of the basis of maxilla 2 in Palaemon adspersus were examined using macro-video recordings, and the morphology of its setae was examined using both scanning and transmission electron microscopy. The basis of maxilla 2 performs stereotypical movements in the latero-medial plane and gently touches the food with a frequency of 3-5 Hz. The medial rim of the basis of maxilla 2 carries three types of seta. Type 1 is serrate, type 2 and 3 are serrulate, and type 2 has a prominent ter...