Bats navigate the dark using echolocation. Echolocation is enhanced by external ears, but external ears increase the projected frontal area and reduce the streamlining of the animal. External ears are
Counts and measurements were made on specimens of the Halloween darter (Percina crypta) and of the Blackbanded darter (Percina nigrofasciata, sensu lato). Data used in the original description of Perc
The term ecomorphology refers to the structural expression in the flow waters and their shore areas. The ecomorphology describes the design of the habitat Bach. An ecomorphological assessment evaluate
Table I. – Morphometric values of Mastiglanis durantoni. Data are expressed as proportions of SL or of HL (starting with head depth). HolotypeAverageRangeStandard length (mm)63.755.9944.9-68.3Predorsa
