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  • Dekeyseria scaphirhynchus
  • Dekeyseria scaphirhynchusRio Negro, Brazil
  • Dekeyseria scaphirhynchusAdult dorsal view
  • Dekeyseria scaphirhynchusRio Negro, Brazil
  • Dekeyseria scaphirhynchusUpper Rio Negro, Brazil
  • Dekeyseria scaphirhynchusRio Nhamundá, Brazil
  • Dekeyseria scaphirhynchusHabitat: Rio Nhamundá, Brazil
  • Dekeyseria scaphirhynchusClose-up of head showing grooves
  • Dekeyseria scaphirhynchusD. amazonica (left, smooth) and D. scaphirhyncha
Down Cat-eLog Data Sheet
Scientific Name Dekeyseria scaphirhynchus  (Kner, 1854)
Common Names L151, Flat Head Pleco
L216, Pandekagesugemalle (Denmark)
Type Locality Manaus, Brazil.
Synonym(s) Ancistrus scaphirhynchus, Peckoltia scaphyrhyncha
Pronunciation dee key SEAR ee ah - ska fi rink hah
Down Species Information
Size 200mm or 7.9" SL. Find near, nearer or same sized spp.
Identification Similar to Lasiancistrus but broader when viewed from above especially in larger adults. Striped species of Dekeyseria were placed in Zonancistrus but because this was only based on colouration, they are more commonly placed with the non-striped species in Dekeyseria.

Individuals are able to change colour to suit surroundings or mood. This ranges from a dark grey / black, through dark brown to light grey.
Sexing Mature males have substantial odontodes both on the thick pectoral ray and the posterior part of the body. The male also have a broader head than the female.
General Remarks L151: DATZ 2/1994, pp 77-78, L216: DATZ 8/1996, pp 480-482. L151 Aqualog matches DATZ and the former, rather helpfully, shows a range of colouration. L216 Aqualog supplement IS the DATZ picture.
Down Habitat Information
Distribution South America: Negro River basin.
Amazon, Middle Amazon (Solimoes), Negro (click on these areas to find other species found there)
Amazon, Lower Amazon, Nhamundá (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 2020.
pH 5.0 - 7.0
Temperature 22.0-26.0°C or 71.6-78.8°F (Show species within this range)
Other Parameters dH 16.
Down Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Down Further Information
Reference Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Classe. v. 7, pp 280 [30], Pl. 3 (fig. 2).
Registered Keepers There are 4 registered keepers, view all "my cats" data.
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There are 7 records of this fish being seen, view them all.
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Dekeyseria scaphirhynchus QR code LFS label creator
ARN ref:1.4.58.130
Last Update 2022 Jan 18 11:28 (species record created: 2001 May 05 00:00)