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Noturus crypticus Burr, Eisenhour & Grady, 2005 |
Image contributors to this species: |
Conservation Fisheries Inc (1) J.R. Shute/USFWS (1) |
ScotCat Sources: |
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Other Sources: |
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Relevant Information: |
Description: Dorsal soft rays (total): 6; Anal soft rays: 15 - 17. 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 N. 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). Remarks: The Chucky Madtom, Noturus crypticus, was described in 2005 and despite extensive recent surveys, only three specimens have been collected over the past 10 years. This fish was most recently observed in Little Chucky Creek in east Tennessee. Two (male & female), collected in 2004, lived in our facility. The female died before any spawning could occur and the male lived at CFI until he died as well in 2008. Agriculture has impacted the creek and all surrounding streams. If additional specimens can be collected we hope to propagate more Chucky Madtoms to enhance the population in Little Chucky Creek. As of August 9, 2011, the Chucky Madtom was listed as endangered by the USFWS. (Conservation Fisheries Inc. 2021). Etymology: The specific name crypticus: Derived from the transliterated Greek kryptos, meaning hidden or concealed, in reference to the close morphological and pigmentation similarities of this species to congeners and its previously unrecognised taxonomic distinctiveness. |
Common Name: |
Chucky madtom |
Synonyms: |
None |
Family: |
Ictaluridae |
Distribution: |
USA: French Broad River basin, eastern Tennessee. Type locality: Tennessee, Greene County, Little Chucky Creek at mouth of Jackson Branch, 36º07'11"N, 83º02'04"W. |
Size: |
6.5cm. (2½ins) |
Temp: |
16-23°C (59-73°F) |
p.H. |
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6.5-7.2. |
IUCN Red List |
This species is listed as Critically Endangered in view of its very small extent of occurrence and area of occupancy (one location consisting of a few stream kilometers). The habitat is threatened by agricultural activities. Current trend is unknown, and the entire population may include fewer than 100 individuals (needs updating IUCN 2013). |
Reference: |
Burr, B.M., D.J. Eisenhour and J.M. Grady,
2005. Two new species of Noturus (Siluriformes: Ictaluridae)
from the Tennessee River drainage: description, distribution,
and conservation status. Copeia 2005(4):783-802. |
Family: Ictaluridae Back to Ident-A-Cat Click on Thumbnails |
Noturus crypticus |
 Noturus
crypticus |
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