Cat-eLog Right Ictaluridae Right Noturus  |  | 

Down Cat-eLog Data Sheet
Scientific Name Noturus insignis  (Richardson, 1836)
Common Names Margined Madtom
Sortfinnet Giftmalle (Denmark)
Type Locality Vicinity of Philadelphia, Pennsylvania, U.S.A.
Synonym(s) Pimelodus insigne
Pronunciation no two russ - in SIG niss
Etymology From the Greek notos, meaning back and oura, meaning tail. In reference to the confluent adipose and caudal fins. The specific name comes from the Latin insignis, meaning distinguished, in reference to the distinctly marked fins.
Article Link - CotM Right 2004 Right July
Down Species Information
Size 150mm or 5.9" SL. Find near, nearer or same sized spp.
Identification Yellow to slate gray above; white or light below; yellow or light gray fins. upper jaw projects beyond lower jaw. 15-21 anal rays.
Sexing Breeding male with swollen lips,enlarged cephalic epaxial muscles, and large bulbous gentital papilla. Female with papilla with deep median groove ending in a small bump
General Remarks Inhabits rocky riffles and runs of clear, fast creeks and small to medium rivers.
Down Habitat Information
Distribution North America: Atlantic Slope from St. Lawrence River and southeastern Lake Ontario drainages in New York to upper Altamaha River drainage in Georgia, USA; upper Kanawha (New) River system in Virginia and North Carolina, USA; upper Monongahela River system in the USA.
North American Atlantic Drainages (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2012.
pH 6.2 - 7.0
Temperature 14.0-22.0°C or 57.2-71.6°F (Show species within this range)
Other Parameters Highly oxygenated water not necessary but preferred.
Down Husbandry Information
Feeding Readily feeds on live and frozen foods. Will also adapt to flake and prepared foods for the aquarium. User data.
Furniture Provide sand mixed with peat moss, pvc pipes, flat rocks and vegetation.
Compatibility Suitable for a coldwater community tank.Ideal tank mates include small-midsized North american native fishes such as darters and shiners.
Suggested Tankmates Ideal tankmates include small to midsized North American native fishes such as darters and shiners.
Breeding Spawning occurs in the months of May-August. It is difficult in the aquarium however it has been done when wild caught specimens are added to aquariums with warmer temperatures than the river or drainage system they are captured from. Nests are sited beneath flat rocks in gentle runs and in slow water above and below riffles. Eggs number 54-200 per clutch and are guarded by the male.
Breeding Reports There is no breeding report.
Down Further Information
Reference Fauna Boreali-Americana Part 3, pp 132.
Registered Keepers There are 9 registered keepers, view all "my cats" data.
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There are 9 records of this fish being seen, view them all.
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Last Update 2020 Oct 04 00:51 (species record created: 2003 Aug 16 00:00)