Hi, Corydoras sp. "San Juan" is to my knowledge only a trade name (like deckeri cory in Colombia) not used for only one species or form but a mix. No one in Iquitos will keep those separated acc. to locations and when those are stressed or juveniles they look probably anyway same. This is ...

Hi Daniel,

I can remember that many years back there were in GB some alleged Corydoras bilineatus which might have been descendants of the stock of Joachim Knaack but I don't remember if this was confirmed or not.
If so, I assume Ian or Hans-Georg might know more...

Cheers,

Hi, I'm quite sure than some if not all picture in the data base are not really Corydoras bilineatus . They are all additionally labeled as "San Juan" cory which is the trade name for Elegans group corys in Iquitos, Peru. I think it's named after the district San Juan Bautista south-west o...

Hi,

Corydoras bilineatus is a species that you would not expect to find in the pet trade, so I would exclude this species, there are many forms that are much more likely...
I fully agree that this is a really a tough group for ID'ing, I'm leaning towards CW029 without being sure though...

Cheers,

Hi Jools, I recommend to add the catching location for my picture as well, considering the huge distance to the type locality and Eschmeyer is listing only: Distribution: Upper Madeira and lower Amazon River basins, Bolivia. Tapanahony river is a tributary of Marowijne/Maroni river system and not th...

Hi,

size info is quite off...

Cheers,

Hi,

you can also use this one of a juvenile (~2,5 cm):


lower Coppename river, Suriname

Cheers,

Hi, I just saw that you are lacking some Hypostomus pictures in your DB. https://www.l-welse.com/gallery/files/3/9/9/8/hypostomus_micromaculatus_ks_10383_800.jpg Hypostomus micromaculatus , Gran Rio, Suriname https://www.l-welse.com/gallery/files/3/9/9/8/hypostomus_nickerie_3610.jpg Hypostomus coran...

Hi,

this first picture from Roland is CW137 (Corantijne drainage), the second one is a true C. coppenamensis.

Cheers,

Hi,

CW151 belongs to lineage 8.4
you can use this picture:


Suriname, Tibiti river (Coppename drainage)

Cheers,

Hi,

bekateen wrote: ↑29 Oct 2020, 21:11 Yes, but more likely the leopardus relative

Corydoras(ln8sc4) sp(c102)

. The black markings are thicker and farther apart on C102 than on

Corydoras(ln8sc4) leopardus

once they are fully grown.

I fully agree on this.

Cheers,

Hi,

I would tentatively also say C. napoensis and C. elegans.
CW008 looks also similar but to my experience this is unlike many other species in the elegans group quite uniform in colouration and has a more regular striped pattern.

C. nanus can be excluded by minimum 100% .

Cheers,

Hi, well, I kept C. melanotaenia quite a time ago and the extent to which they show the yellow colour can vary significantly and I do see yellow ventral fins which is not known for "standard" C. aeneus (which is not C. aeneus in sensu stricto) but there are definitely other forms of the ae...

Hi, it's definitely not C. aeneus in sensu stricto and I would not even call it C. aeneus at all but C. melanotaenia even though the fins are not so bright yellow to exclude all doubts... There are so many C. aeneus look-a-likes in South America. One thing is clear, it's a really nice shot of a nice...

Hi, you will never find C. nanus (Suriname) or C. bilineatus (Bolivia) in ordinary pet shops, if you ever should be so lucky to find them in specialised shops they should be very much more expensive than other Corydoras . Both species are coming from countries from which there are no regular exports...

Hi, another thing that IMHO is definitely wrong is this: common pleco (Hypostomus plecostomus) Hypostomus plecostomus is not at all common (in the hobby), but the so-called "common pleco" is regularly mis-identified as Hypostomus plecostomus which is more or less not available in the pet t...

Hi Eric,

perhaps you were refering to this one: CW132 ?

But I also think that B. splendens is more probable.

Cheers,

here you are:

Hi, I share the doubts, IMHO the living ones are not P. mariae, the conserved ones look ok. You can use this picture: http://www.l-welse.com/gallery/files/3/9/9/8/otocinclus_mariae_11579_800.jpg Caught in a tributary of Tapanahony, Suriname. According to the official checklists etc. there is only th...

Hi, it seems that hybrids are much more wide spread than previously known and there is no reliable way to tell them apart from pure species if they are no wild caught specimen from South America (which is very unlikely). Hybrids can show the whole range of belly pattern from "typical pardalis&q...

Hi,

not sure if this is the right sub-forum for this.

Please feel free to use this picture in your DB:


The L number is based on my group, so 100% safe.

Cheers,

Hi, this is definitely also not C. saramaccensis , it looks rather like C. sarareensis , perhaps just someone mixed up the similar names ?! This is IMHO a safe C. saramaccensis : https://www.l-welse.com/gallery/files/3/9/9/8/corydoras_saramaccensis_2_800.jpg I bought the group in a pet shop in Param...

Hi, I have to look if I have pictures myself, if so (quite sure) probably not really good ones. I brought a small group from a pet shop in Paramaribo but meanwhile I have passed them to breeders with experience in lineage 1 species. They have spawned for the first time recently but nearly all eggs p...

Hi, pictures in the species page don't show Corydoras saramaccensis . If I remember correctly these were corys from the pet trade making this species already very unlikely but also the pattern does not match and also snout shape is wrong. Without having catching location it does not make much sense ...

Hi, the authors already stated that this species has features that don't really fit into the lineages, the snout is rather too long for lineages 6 & 9, their conclusion was that this feature would be rather typical for lineage 8. The tentative assignment to lineages 6 or 9 was based on pectoral ...

Hi, Corydoras sanchesi is extremely unlikely, those come from Suriname and there are barely any fish exports from there. Even if so, the prices are so high that those will never end up in standard pet shops as they are just too expensive. However, I also don't really know where Ian's cory actually c...

Hi,

this species has been restricted to South America, so Central American specimen (Mexico) should be removed from species page or moved to a different page.

Cheers,

Hi,

yes, Steve is probably right. This should be CW115.
However, I'm surprised to see those in an auction, were there any commercial imports or has someone bred them ?

Cheers,

Hi, well, there are countless Ancistrus species with dark colour and clear spots. Without knowing the origin it might be impossible to find out what it is. The two mentioned species however, can (most likely) be excluded. Unfortunately the most important detail is not visible in the pictures. It wou...