| Family: |
Ictaluridae (North American freshwater catfishes) |
| Max. size: |
6.47 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
North America: USA. |
| Diagnosis: |
Dorsal soft rays (total): 6-6; Anal soft rays: 15-17. Diagnosis: Distinguished from other members of the Noturus elegans species group by having: modally 16 anal rays (vs. 18 in Noturus fasciatus); modally 8 pelvic rays (vs. 9); 2-10 medium-large sized melanophores on the cheek (vs. large melanophores absent on cheek); adipose fin band extending only to base or half-way up fin (vs. extending half-way up to edge of fin in fasciatus); adipose and caudal fins distinctly joined at their juncture (vs. weakly connected in fasciatus); three evenly spaced pale and dark bands in caudal fin (vs. caudal fin bands usually two and unevenly spaced); robust body shape, with body width at pectoral fin origin 23% or more of SL and greater than anal fin base length (vs. slender body shape, with body width at pectoral fin origin 22% or less of SL and less than anal fin base length). There is an absence of shared alleles for eight allozyme loci (mAAT-A, sACOHA, GPI-B, LDH-B, sMDHP-A, Pep-b, Pep-D, and PGM-A) distinguishes crypticus and fasciatus, which also differ by 5% Cytb sequence divergence. Similarly, both share no alleles at eight allozyme loci (mAAT-A, sAATA-A, sACOH-A, FUM-A, GPI-A, GPI-b, LDH-B, sMDHP-A, and Pep-D) and are 6.3% divergent for Cytb (Ref. 56218). |
| Biology: |
|
| IUCN Red List Status: |
Critically Endangered (CR); Date assessed: 02 March 2012 (B1ab(iii)+2ab(iii)) Ref. (124695)
|
| Threat to humans: |
harmless |
| Country info: |
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