Iowa DNR
BioNet
River & Stream Biological Monitoring
Fish and Benthic Macroinvertebrate Surveys
Physical Habitat Assessments

Caenis anceps Small Squaregill Mayflies

Taxa Hierarchy
Phylum
Arthropoda
Class
Insecta
Order
Ephemeroptera
Family
Caenidae
Genus
Caenis
Species
anceps
ITIS Links
TSN
Parent TSN
Metric Values
Tolerance
7.0
FFG
Collector/Gatherer
Habit
Unidentified
CW Ind
False
Assessment Program Statistics
Total Individuals Collected
168
Number of Unique Sites Collected
16

Taxa Distribution Map