Journal
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
Volume 142, Issue 2, Pages 233-252Publisher
OXFORD UNIV PRESS
DOI: 10.1111/j.1096-3642.2004.00132.x
Keywords
functional morphology; mechanical function; setal types
Categories
Ask authors/readers for more resources
The crustacean cuticle has numerous projections and some of these projections, the setae, have important mechanical as well as sensory functions. The setae display a wide diversity in their external morphology, which has led to great problems separating setae from other projections in the cuticle and problems in making a consistent classification system. Here, the cuticular projections on the mouthparts of seven species of decapods are examined by scanning and transmission electron microscopy. A new definition is given: a seta is an elongate projection with a more or less circular base and a continuous lumen; the lumen has a semicircular arrangement of sheath cells basally From the details of the external morphology the mouthpart setae are divided into seven types: pappose, plumose, serrulate, serrate, papposerrate, simple and cuspidate setae, which are suggested to reflect mechanical functions and not evolutionary history. This classification system is compared with earlier systems. (C) 2004 The Linnean Society of London.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available