Cat-eLog Right Arrow Loricariidae Right Arrow Hypostominae Right Arrow Megalancistrus

Jump to next section Cat-eLog Data Sheet
Scientific Name Megalancistrus parananus  (Peters, 1881)
Common Names L113, Gigas-Ancistrus (Germany)
Type Locality Río Paraná at La Paz, Entre-Ríos, Argentina.
Synonym(s) Chaetostomus aculeatus, Chaetostomus gigas, Megalancistrus aculeatus, Megalancistrus gigas, Pterygoplichthys parananus
Pronunciation mega lan SISS truss - pah rah nah nuss
Etymology Greek, megas, megalos = great + Greek, agkistron = hook, in this case meaning "big Ancistrus". Named for the Rio Paraná, this species type locality.
Jump to next section Species Information
Size 600mm or 23.6" SL. Find near, nearer or same sized spp.
Identification A colossal pleco worthy of the generic name. Can be differentiated from other large loricariids by the presence of evertible interopercular odontodes.

Many sources suggest that L113 is also L234. Both are spotted. L113 is from the Rio Paraná and has a darker base colouration and, at least in adulthood, a lower dorsal fin. L234 is closely related but from the Rio São Francisco and has a lighter base colouration and, at least in adulthood, a taller dorsal fin. This confusion stems from the original L234 (DATZ, 1996) article which shows the Rio São Francisco fish but incorrectly states it came from the Rio Paraná. Possibly collection data was mixed up or commercially sensitive and so was not reported accurately.
General Remarks L113 DATZ 10/1992 pp619-620 L234 DATZ 11/1996 p685.
Jump to next section Habitat Information
Distribution L113 is imported from Brazil, Rio Paraná, Rio Paraguai, Paraguay and Argentina.
La Plata, Paraná (click on these areas to find other species found there)
La Plata, Paraná, Paraguay (click on these areas to find other species found there)

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IUCN Red List Category Not Evaluated
Jump to next section Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Jump to next section Further Information
Reference Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1881 (no. 2) (for 15 Feb. 1881), pp 17.
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Last Update 2019 Sep 14 07:46 (species record created: 2001 May 05 00:00)