Paramormyrops kingsleyae (Günther, 1896)

Onglets principaux

EOL Text

General Description:

A medium-sized Paramormyrops with 5 teeth in the upper jaw, 6 in the lower, 12 circumpeduncular scales, and a U-shaped head when viewed from above. The dorsal profile of head is rounded, not concave. Head short, 19.5–28.7% SL. Caudal peduncle moderately thick, its depth 4.1–7.5% SL. Interorbital distance large,121–212% of snout length. Body depth 14.8–24.9% SL. Head length 19.5–28.7% SL., head depth 13.5–20.2% SL. Eye diameter 7.4–16.3% HL, 27.8–79.7% of snout length. Snout 18–29% HL. Interorbital distance 121–212% of snout length, 40–67% of postorbital length. Postorbital length 54–82% HL; 202–385% of snout length. Mouth width 14.2–22.2 % HL. Inter-narine distance 18–41% of snout length. Dorsal fin 15–21% SL with 15–19 rays including an initial single unbranched, unsegmented ray. Anal fin 18–28% SL with 21–26 rays including a single unbranched, unsegmented initial ray. Pectoral 13–20% SL. Pelvic fin 9–14% SL with 6 rays. Caudal peduncle moderately short and thick, its length 14–22% SL, its depth 4.1–7.5% SL, 21–43% of caudal peduncle length. Predorsal distance 64–74% SL, preanal distance 58–70% SL. Lateral line with 55–62 scales total. 9–10 scales dorsal to lateral line, 9–12 above.

The fish varies from dark chocolate brown to lighter brown with violet spots above, lighter brown to yellow/gold on the beneath.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorSullivan, John P., Sullivan, John P., Hopkins, Carl, Africhthy
Sourcehttp://mormyrids.lifedesks.org/pages/2030

Maximum size: 135 mm SL

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorFishWise Professional, FishWise Professional
Sourcehttp://www.fishwisepro.com/Species/details.aspx?Zoom=True&SId=107047

Max. size:

13.5 cm SL (male/unsexed; (Ref. 2915))

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorTess Cruz, FishBase
Sourcehttp://www.fishbase.org/summary/SpeciesSummary.php?id=5218

Size:

to 160 mm SL.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorSullivan, John P., Hopkins, Carl D., Africhthy
Sourcehttp://mormyrids.lifedesks.org/pages/2030

Body depth 4.2-5.0 x SL. Eye small, 6.4-8.3 x head length. Head length 4.5-5.3 x SL. Dorsal fin base 5.8-7.0 x SL, origin behind origin of anal fin. Dorsal base to anal base ratio 0.7-0.9. Pectoral shorter than head, 1.4-1.7 x pelvic fin length. Clear brown color.

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorMaria Lourdes D. Palomares, FishBase
Sourcehttp://www.fishbase.org/summary/SpeciesSummary.php?id=5218

Habitat and Ecology:

Habitat and Ecology

This mormyrid grows to 13.5 cm TL. It is found in rivers, small streams and deltas.

Systems

  • Freshwater
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/Author© International Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/56546496

Environment:

benthopelagic; freshwater

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorTess Cruz, FishBase
Sourcehttp://www.fishbase.org/summary/SpeciesSummary.php?id=5218

Electric Organ Discharge:

The EOD waveform has two main peaks, P1 and P2, sometimes preceded by a very small initial P0 peak. The overall duration is 1.93 msec ± 0.57 (std. dev.). The mean height of the initial peak, P0 is only 2% of the peak to peak height. The height of peak P1 is 37% of the peak to peak height. The peak of the power spectrum is at 675 Hz ± 125. The electric organ is variable in form. Those specimens with no P0 have electrocytes that are all Type NPp, those with a small P0 have some or all of the electrocytes of type Pa.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorSullivan, John P., Hopkins, Carl, Africhthy
Sourcehttp://mormyrids.lifedesks.org/pages/2030

Phylogenetic Relationships:

The wide-ranging species we here recognize as Paramormyrops kingsleyae corresponds to the "cabrae group" clade in an AFLP study of phylogenetic relationships of Paramormyrops species and populations (Sullivan et al., 2004). Unpublished analysis of cytochrome b DNA sequences from populations in the western Congo basin indicates that these belong to the same clade.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorSullivan, John P., Sullivan, John P., Africhthy
Sourcehttp://mormyrids.lifedesks.org/pages/2030

IUCN Red List Assessment:
Red List Category

DD
Data Deficient

Red List Criteria

Version

3.1

Year Assessed

2010

Assessor/s

Olaosebikan, B.D. & Lalèyè, P.

Reviewer/s

Abban, K. & Darwall, W.R.T.

Contributor/s

Justification

In Western Africa, this subspecies is known from the type specimen collected at Old Calabar, Nigeria. However the specimen from Old Calabar is suspected to have originated from the Ogowe river (Gabon) as no other specimens have been found in this area. As its true distribution is not known, the subspecies can be assessed as Data Deficient.
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/Author© International Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/56546496
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith