Isichthys henryi
Size:
to 235 mm SL
Isichthys henryi Gill, 1863
EOL Text
Holotype for Isichthys henryi Gill
Catalog Number: USNM 7448
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Locality: No Data; Liberia?, Liberia, Africa
- Holotype: Gill, T. N. 1863. Proceedings of the Academy of Natural Sciences of Philadelphia. 14 (9): 444.
| License | http://creativecommons.org/licenses/by/3.0/ |
| Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
| Source | http://collections.mnh.si.edu/search/fishes/?irn=5217919 |
Habitat and Ecology:
Habitat and Ecology
Isichthys henryi is a demersal species. It possesses electroreceptor's over the entire head, the dorsal region and some parts of the ventral region; absent from the side and the caudal peduncle where the electric organ is located. The Electric organ discharge (EOD) rates are of low frequency and sexually dimorphic as to waveform (Mller 1995).
Systems
- Freshwater
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/182624 |
Environment:
demersal; freshwater; pH range: 5.0
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Tess Cruz, FishBase |
| Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=5077 |
Electric Organ Discharge:
EOD with two phases, an initial head-positive phase, followed by a head-negative phase. The overall duration is very long: 6.1-11.8 msec. There is a pronounced inflection point in the rising head-positive phase, leading to a sharp increase just before the first peak, P1. There is no initial head negativity. The electrocytes of the electric organ are non-penetrating and are innervated on the posterior surface (Type NPp).
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | Sullivan, John P., Hopkins, Carl D., Africhthy |
| Source | http://mormyrids.lifedesks.org/pages/2095 |
Barcode data: Isichthys henryi:
The following is a representative barcode sequence, the centroid of all available sequences for this species.
No available public DNA sequences.
Download FASTA File
Statistics of barcoding coverage: Isichthys henryi:
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
IUCN Red List Assessment:
Red List Category
LC
Least Concern
Red List Criteria
3.1
Year Assessed
2010
Assessor/s
Moelants, T. & Olaosebikan, B.D.
Reviewer/s
Snoeks, J., Tweddle, D., Getahun, A., Laly, P., Paugy, D., Zaiss, R., Fishar, M.R.A & Brooks, E.
Contributor/s
This species has a wide distribution, with no known major widespread threats. It is therefore listed as Least Concern. It has also been assessed regionally as Least Concern for central and western Africa.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/182624 |
Population:
Population
No information available.
Population Trend
Unknown
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/182624 |
Biology:
Possesses electroreceptors over the entire head, the dorsal region and some parts of the ventral region; absent from the side and the caudal peduncle where the electric organ is located. Electric organ discharge (EOD) rates are of low frequency and sexually dimorphic as to waveform (Ref. 10011).
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | Tess Cruz, FishBase |
| Source | http://www.fishbase.org/summary/SpeciesSummary.php?id=5077 |
Threats:
Major Threats
There is no information available on threats to this species.
| License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
| Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
| Source | http://www.iucnredlist.org/apps/redlist/details/182624 |