Hypostomus plecostomus

Incorrect ID? New info to be added, taxonomic revisions and any kind of changes to the data we currently hold in here please!
Post Reply
Karsten S.
Posts: 606
Joined: 26 May 2007, 22:35
My images: 30
Spotted: 20
Location 1: Ludwigsburg - Germany
Location 2: Ludwigsburg - Germany

Hypostomus plecostomus

Post by Karsten S. »

Hi,

image 11 on species page is not H. plecostomus, body shape is quite off (much too flat).

Hence, assuming that it's the same specimen or from the same group probably also images 6-8 from the same image author are not.
In pictures 6 & 8 the pleco also looks too flat.
Usually the underside is more or less free from spots (pattern in picture 7 might still be possible for that species but quite unusual).

Best regards,
Karsten
--

Karsten
Karsten S.
Posts: 606
Joined: 26 May 2007, 22:35
My images: 30
Spotted: 20
Location 1: Ludwigsburg - Germany
Location 2: Ludwigsburg - Germany

Re: Hypostomus plecostomus

Post by Karsten S. »

Hi,

the pictures from Shane Lindner also do not really look like H. plecostomus to me, much closer than the other one though. It would be very interesting to know where those came from.

Did those eventually come from Colombia, Orinoco drainage ?
Officially, H. plecostomus is also listed for this river system, but I do have some doubts (not much more than gut feeling) if this is really the same species.

Best regards,
Karsten
--

Karsten
Karsten S.
Posts: 606
Joined: 26 May 2007, 22:35
My images: 30
Spotted: 20
Location 1: Ludwigsburg - Germany
Location 2: Ludwigsburg - Germany

Re: Hypostomus plecostomus

Post by Karsten S. »

Picture 13 (JJ PL) is also no H.plecostomus, the dorsal fin spine is definitely out of range (too long vs. Weber et al. 2012).
--

Karsten
User avatar
Jools
Expert
Posts: 15994
Joined: 30 Dec 2002, 15:25
My articles: 197
My images: 944
My catfish: 238
My cats species list: 87 (i:13, k:1)
My BLogs: 7 (i:7, p:202)
My Wishlist: 23
Spotted: 447
Location 1: Middle Earth,
Location 2: Scotland
Interests: All things aquatic, Sci-Fi, photography and travel. Oh, and beer.
Contact:

Re: Hypostomus plecostomus

Post by Jools »

Hi Karsten,

What do you think about this one? @Shane collected the ones he photographed in Venezuela - not sure exactly where.

Image

Jools
Karsten S.
Posts: 606
Joined: 26 May 2007, 22:35
My images: 30
Spotted: 20
Location 1: Ludwigsburg - Germany
Location 2: Ludwigsburg - Germany

Re: Hypostomus plecostomus

Post by Karsten S. »

Hi Jools,

this might be the same specimen as in picture 11 (same picture author), IMHO too flat for H. plecostomus, the caudal peduncle also looks too high in comparison with body height.

Best regards,
Karsten
--

Karsten
User avatar
Shane
Expert
Posts: 4590
Joined: 30 Dec 2002, 22:12
My articles: 69
My images: 161
My catfish: 75
My cats species list: 4 (i:0, k:0)
My aquaria list: 4 (i:4)
Spotted: 99
Location 1: Tysons
Location 2: Virginia
Contact:

Re: Hypostomus plecostomus

Post by Shane »

https://www.researchgate.net/publicatio ... ricariidae

Based on the above, none of the fish I collected are H. plecostomus. My specimens were all collected in feeder rivers (Rio Guraico, Rio Pao, etc) in the Orinoco drainage.
-Shane
"My journey is at an end and the tale is told. The reader who has followed so faithfully and so far, they have the right to ask, what do I bring back? It can be summed up in three words. Concentrate upon Uganda."
Winston Churchill, My African Journey
User avatar
Jools
Expert
Posts: 15994
Joined: 30 Dec 2002, 15:25
My articles: 197
My images: 944
My catfish: 238
My cats species list: 87 (i:13, k:1)
My BLogs: 7 (i:7, p:202)
My Wishlist: 23
Spotted: 447
Location 1: Middle Earth,
Location 2: Scotland
Interests: All things aquatic, Sci-Fi, photography and travel. Oh, and beer.
Contact:

Re: Hypostomus plecostomus

Post by Jools »

Shane wrote: 10 Dec 2023, 20:55Based on the above, none of the fish I collected are H. plecostomus. My specimens were all collected in feeder rivers (Rio Guraico, Rio Pao, etc) in the Orinoco drainage.
Thanks Shane, brown spotted plecos are so much fun. I reckon these are either H. plecostomoides or L192 then. Amazingly I never considered L192 when I was looking at your fishes. It is not well documented.

OK, will review the pics. :-)

Thanks Karsten,

Cheers,

Jools
User avatar
Shane
Expert
Posts: 4590
Joined: 30 Dec 2002, 22:12
My articles: 69
My images: 161
My catfish: 75
My cats species list: 4 (i:0, k:0)
My aquaria list: 4 (i:4)
Spotted: 99
Location 1: Tysons
Location 2: Virginia
Contact:

Re: Hypostomus plecostomus

Post by Shane »

L192 collection area is spot on.
-Shane
"My journey is at an end and the tale is told. The reader who has followed so faithfully and so far, they have the right to ask, what do I bring back? It can be summed up in three words. Concentrate upon Uganda."
Winston Churchill, My African Journey
Post Reply

Return to “Cat-eLog data issues”