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

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).

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 ...

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 ...

Hi Daniel, thanks. fish 2 might be Trachelyopterus cf. galeatus yes, this would also be my guess.. fish 10 is Pterobunocephalus aff. depressus yes, this fits much better. fish 9 is an undescribed Bunocephalus I think I just took the best fit of the listed species but I agree Pseudobunocephalus ...

Hi, just came back from Iquitos... all from Rio Nanay: fish 1: https://static.inaturalist.org/photos/222128991/large.jpeg juvenile Auchenipterichthys coracoideus ? fish 2: https://static.inaturalist.org/photos/222129232/large.jpeg fish 3: https://static.inaturalist.org/photos/221952844/large.jpeg ...

Hi,
to me it looks rather like a hybrid (likely with R. lanceolata, possibly also other species), this species is quite commonly crossed with the red whiptails as the females of R. lanceolata lay significantly more eggs, juveniles are very often nevertheless quite red but darken with age.

Hi,

although the colouration reminds a bit of C. nanus, the probability to find this species in the pet trade by chance is zero.

Best regards,
Karsten

Hi, if these were sold as P. jumbo I would rather expect to have a by-catch of this species from north-eastern Brazil. I do agree that it is not P. sp. "Pernambuco" but IMHO (I have kept that species for some years) it is also not P. britskii although body shape and colouration is much closer. P ...

Hi, the location is wrong for P. raso and also for L 435 (=LDA066), both froms originate from Amapa, Brazil. The pictures are showing a form that is IMHO certainly something different and nearly for sure it also did not come from Guyana. If you continue to use the page for L 435 you should update ...

Hi,

definitely not Corydoras melanotaenia but C. aeneus.

Cheer,

Hi,

@bekateen yes, this picture is mine


Microglanis poecilus, Tapanahony river, Suriname

Cheers,

Hi, the pictures on the species page of Paralithoxus cf. raso do not show P. raso and also not L 435 (which might be identical with P. raso ). The colouration is quite off, both species/forms have spots that are approximately the size of the orbital diameter. Furthermore P. raso has significantly ...

Hi, some more Suriname pictures from families I'm not too familiar with, so better double check before uploading (if you want to use them on the species pages)... Most IDs should be correct. https://www.l-welse.com/gallery/files/3/9/9/8/centromochlus_punctatus_4053.jpg Centromochlus punctatus ...

Hi, yes, also to my experience Haakon is very knowledgeable and I guess he knew where the fish came from. I meant both, close-looking as well as geographically close as this is near to the Surinamese border. Oh, the ones from Yann are all from the same place, interesting. The ones I caught there had ...

Hi, the first picture seems to be ok, but without knowing the origin it is difficult to be sure in this genus. All the other pictures look to me like Ancistrus forms from French Guyana that are not identical to Ancistrus temminckii . https://www.l-welse.com/gallery/files/3/9/9/8/ancistrus_temminckii ...

Hi,

L 217, L 256 & L 431 are all Paralithoxus.

Cheers,

Hi, the first picture is no Paralithoxus planquettei , do you know the catching location ? In the Lithoxini revision of Lujan et al. table 2: "white spots on body: absent", see also here: Paralithoxus planquettei how they do look like. The pictures from Yann are unidentifiable. Cheers,

Hi Eric, in Corantijne river system (Sipaliwini river) we have three Corydoras with similar colour pattern: - Cordoras filamentosus : lineage 1 - Corydoras sipaliwini : lineage 9 (= CW114) - Corydoras sp. "CW143" : lineage 8 The picture from Raphael Covain in the link (MHNG 2707.015-SU07-625) was ...

Hi, Corydoras filamentosus belongs to acutus group, lineage 1. Similar story as with C. spilurus , the tissue sample used within the framework of the phylogeny of Alexandrou et al. 2010 belonged to the sympatric CW143 which belongs to lineage 8. I have discussed this with Raphael Covain and he only ...

Hi, this species belongs to acutus group, lineage 1. In the phylogeny of Alexandrou et al. 2010 the tissue samples used belonged to CW138 and not to C. spilurus , that's why this species ended up in the wrong lineage. I have written an article on this topic in the BSSW report 3-2017 "Über die ...

Hi,

this species belongs to the aeneus group, lineage 7.

Cheers,

Hi, do you have any information from where those were imported, together with the C. similis ? I can definitely confirm C. similis and for the others CW063 could be an option. However, the specimen on the original picture has an even smaller caudal spot that is more elongated and a much more ...

Hi, I would tentatively agree with CW029. I have not kept those myself, so I only know pictures of adult specimen and not too much about variability etc. However, the dark broad stripe going from the eye towards the dorsal fin spine insertion seems to me a good diagnostic feature of this form which ...

Hi,

pictures 6-9 on the species page are in fact Hypostomus spiniger. It's rather outside distribution range for H. commersoni and the last picture with the adult is without any doubt not H. commersoni.

Cheers,

Hi,

on the species page the first 6 pictures are not H. albopunctatus (dorsal spine much too long).
Picture 7 is difficult to judge, picture 8 looks ok.

Cheers,

Hi, also maximum length needs a correction, afaik it is rather in the range of 25 cm (SL) which is the largest size mentioned in Weber et al. 2012 (based on 158 specimen) and also corresponds to my experience from Suriname. Since a few years I keep two of them in a 500l tank and those have only ...

Hi Shane, thanks ! Unfortunately in Weber et al. 2012 the distribution is not defined very precisely, but Venezuela is not listed in Eschmeyer's catalogue but Colombia/Orinoco basin whereas in Weber er al. 2012 they wrote Essequibo: In the Guianas, Hypostomus plecostomus is found in the coastal ...

Hi, there some quite doubtful pictures in your data base. As there are lots of similar species from various locations that have been considered to belong to this species and also the populations in Suriname show quite a high variability in pattern it's difficult to identify them with pictures alone ...

Hi,

I don't see anything that would suspect me of this being a hybrid. However, it is most likely C. trilineatus which is commonly sold as C. julii.
The albinos are most likely C. schultzei / C. aeneus, a sharper picture especially of the dorsal fin could confirm this.

Cheers,