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Title: Molar surface-morphology in streptocephalus-coomansi (crustacea, branchiopoda, anostraca)
Authors: Brendonck, Luc # ×
Issue Date: Feb-1994
Publisher: Wiley-liss
Series Title: Journal of morphology vol:219 pages:165-172
Abstract: Except for the posterio-dorsal margin, the circumference of the molar surface exhibits flagellated processes which become simple at the posterio-ventral margin. Four topographic regions are distinguished: A) a postero-dorsal region, B) a peripheral region, C) a transitional zone, and D) a central region. The postero-dorsal region of the left mandible has one row of widely spaced, stout, conical teeth, while in the right mandible two rows of slender teeth, which become multi-branched anteriorly, are present. The peripheral molar region stretches between the bordering flagellated processes and the central region and consists of several parallel, dorso-ventral rows of armed teeth. The maximum number of teeth in one dorso-ventral row is higher at the ventral than at the dorsal side and in the left than in the right mandible. In the transitional zone, the number of cusps on each tooth is progressively reduced. The central region, a perforated thickened cuticular plate, extends over the majority of the molar surface. This region is unique among the anostracans studied in this respect and may reflect a different feeding ecology. The strongly diversified molar surface probably allows the species to exploit a wide trophic spectrum. It remains to be tested if these observations may be extrapolated to the entire genus. (C) 1994 Wiley-Liss, Inc.
ISSN: 0362-2525
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Ecology, Evolution and Biodiversity Conservation Section
× corresponding author
# (joint) last author

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