Lima or elongatus?
- Thread starter Edward345
- Start date
Have to grow it out and see. Still not known to us how to physically differentiate the two
Lima, don't elongatus have less stripe and more spots?
Assume Lima and when it goes over 14" in a year or so time we will know for sure!
Assume Lima and when it goes over 14" in a year or so time we will know for sure!
This is somewhat what's stated here and there, like Planet Catfish for instance, but then it is also refuted as an unreliable trait that depends on the habitat, not DNA, on the same site.
Speaking from experience? Can cite trustworthy resources? I mean the 1 year or so thing.
Not sure many could cite experience in this fish since it's still in debate as to whether this is truly a new fish or just a regional difference however researchers do seem to think a new species.
Abstract
Sorubim elongatus, new species, is described from the Amazon, Essequibo, and Orinoco basins in northern South America where it is sympatric and syntopic with the more familiar S. lima. This medium-sized (to 300 mm SL) pimelodid shares several morphological similarities with congeners that have helped to obscure its formal taxonomic recognition and description despite being common in museum collections in Europe and the Western Hemisphere.The new species is easily recognized by an elongate head and body and a combination of the following characters: modally 8 pectoral-fin rays, 22 anal-fin rays, and 19 gill rakers on the 1st pharyngeal arch; anal-fin origin; and mental barbels inserted even with or posterior to the gular apex. The nominal S. latirostris Miranda-Ribeiro is a junior subjective synonym of S. lima (Bloch & Schneider).
(PDF) Sorubim elongatus, a new species of catfish (Siluriformes: Pimelodidae) from tropical South America syntopic with S. lima. Available from: https://www.researchgate.net/public...m_tropical_South_America_syntopic_with_S_lima [accessed Dec 23 2018].
Not sure this helps in this case, but from the photos and my experience of s.lima, and the fact i have no experience of s.elongatus, I would say lima. And knowing how large mine has grown and how long it took and the point that they believe elongatus maxs out at a foot.
Abstract
Sorubim elongatus, new species, is described from the Amazon, Essequibo, and Orinoco basins in northern South America where it is sympatric and syntopic with the more familiar S. lima. This medium-sized (to 300 mm SL) pimelodid shares several morphological similarities with congeners that have helped to obscure its formal taxonomic recognition and description despite being common in museum collections in Europe and the Western Hemisphere.The new species is easily recognized by an elongate head and body and a combination of the following characters: modally 8 pectoral-fin rays, 22 anal-fin rays, and 19 gill rakers on the 1st pharyngeal arch; anal-fin origin; and mental barbels inserted even with or posterior to the gular apex. The nominal S. latirostris Miranda-Ribeiro is a junior subjective synonym of S. lima (Bloch & Schneider).
(PDF) Sorubim elongatus, a new species of catfish (Siluriformes: Pimelodidae) from tropical South America syntopic with S. lima. Available from: https://www.researchgate.net/public...m_tropical_South_America_syntopic_with_S_lima [accessed Dec 23 2018].
Not sure this helps in this case, but from the photos and my experience of s.lima, and the fact i have no experience of s.elongatus, I would say lima. And knowing how large mine has grown and how long it took and the point that they believe elongatus maxs out at a foot.
Viktor, you don't say how many of your group you bought as, or believe to be elongatus vs lima. Do you have any photos?.Were they sold as lima?
No doubt this is how all the discussions around different tiger shovelnose started many many years ago when it was thought there were only two types.
We look to you to lead the way !
No doubt this is how all the discussions around different tiger shovelnose started many many years ago when it was thought there were only two types.
We look to you to lead the way !
The lima versus elongatus has been an enigma to me for a decade.
No one ever sells the fish from the Sorubim genus under any other species name than lima or also no species name at all - just a shovelnose catfish or common shovelnose catfish.
From the way my 20-pack looks today, I'd say roughly half are lima and half are not. They all came from the same shipment, shipped together, intermixed, looking the same at 3".
As I said, I'd be more comfortable with waiting it out another year or more so the size disparity is beyond doubt.
You can see mine in a recent "all our tanks" video but I plan to cut out snipets and post them in the corresponding forums, including the LSN thread.