Which L200 is he?

Kostas · Post by **Kostas** » 23 Jan 2006, 09:44

Hi,
I would like to know if my L200 is Baryancistrus or Hemiancistrus because i am going to buy 2 more and want them to be of the the same species.I have compared pictures of both species with mine but i cant conclude.
Here are some pictures of him.

Thank you in advance

husky_jim · Post by **husky_jim** » 23 Jan 2006, 10:23

Hi Kosta.
Your fish is a Baryancistrus Demantoides.
Where did you get him from?Hydrocosmos?If so then it is for sure Baryancistrus demantoides as i have seen the fish in person.

Regards,
Jim

Kostas · Post by **Kostas** » 23 Jan 2006, 17:09

Hi Jim,
Thank you for helping with the id.
I have this fish for about 2 years now.I got it as a juvenile from Viotopos.The latest picture of him is taken before about a year and he has grown a bit more since then.
I went to Hydrocosmos at Saturday and saw the L200.I think he has both kinds as i saw one that was Hemiancistrus for sure although most of them were indeed Baryancistrus.

Line · Post by **Line** » 23 Jan 2006, 17:24

Sorry - but I would say it's an Hemiancistrus.

Best Regards
Line

lotsabettas · Post by **lotsabettas** » 23 Jan 2006, 18:09

I would also say yours is Baryancistrus

Post by **Janne** » 23 Jan 2006, 18:55

I agree with Line,

Janne

husky_jim · Post by **husky_jim** » 23 Jan 2006, 22:08

Janne wrote:I agree with Line,
Hemiancistrus subviridis

Janne

Janne why are you say Hemiancistrus?

This is a part of one of Kostas pics.The head difference is obvious:

Look also the comparison pic on CatElog:

H. subviridis lower/front, B. demantoides behind

I insist on Baryancistrus...

p.s. I was also on that import 2 years ago that Kostas got his fish from....

Jon · Post by **Jon** » 24 Jan 2006, 02:59

The dorsal membrane doesn't touch the base of the adipose plate. It is a hemiancistrus, IMO.

husky_jim · Post by **husky_jim** » 24 Jan 2006, 08:12

Jon wrote:The dorsal membrane doesn't touch the base of the adipose plate. It is a hemiancistrus, IMO.

Here is a part of one of Kostas pics.....

Jon · Post by **Jon** » 24 Jan 2006, 10:25

So is this:

There is an obvious gap there that can only be seen when the dorsal is fully erect.

Jorge · Post by **Jorge** » 24 Jan 2006, 20:33

yours is a Hemiancistrus, dorsal and adipose fins are not in contact...

Kostas · Post by **Kostas** » 26 Jan 2006, 10:06

Thank you very much for your help

So my L200 is a Hemiancistrus subviridis.

husky_jim · Post by **husky_jim** » 26 Jan 2006, 10:49

Here is the differences of the two genus:

Baryancistrus....

Baryancistrus can be separated from all loricariids except Delturus, Parancistrus, and Spectracanthicus by the presence of an enlarged, posterior membrane on the dorsal fin . Baryancistrus can be separated from Spectracanthicus by having more than 26 teeth and jaws that are long, nearly forming a straight line at union (vs. short, forming an acute angle at union) from Spectracanthicus murinus by having evertible cheek spines, from Parancistrus by lacking fleshy folds on the skin around the dorsal fin, by having restricted gill openings (the gill openings in Parancistrus are large), and by lacking plates on the abdomen, and from Delturus by having only a single median preadipose plate (vs. 3-4), evertible cheek plates, lack of a postdorsal ridge, and lack of a very large naked area behind the pterotic-supracleithrum.

Hemiancistrus....

Hemiancistrus differs from most of the ancitrins except Baryancistrus, Panaque, Peckoltia, some Parancistrus and Hypancistrus by lacking odontodes on the opercle. Among that group, it differs from Baryancistrus and Parancistrus by not having the dorsal-fin membrane expanded posteriorly (except for an undescribed species which differs from Baryancistrus by lacking spots and from Parancistrus by having restricted gill openings), from Panaque by having viliform teeth (vs. spoon-shaped teeth or elongated spoon-shaped teeth), and from Peckoltia by having light or dark spots or no spots (vs. dorsal saddles and spots, if present, restricted to head, abdomen and fins).

mmcm1997 · Post by **mmcm1997** » 26 Jan 2006, 15:34

How are Baryancistrus with breeding in tanks?

MatsP · Post by **MatsP** » 26 Jan 2006, 15:49

I think the question on breeding Baryancistrus should really be moved to the "Loricariidae" forum.

However, I'll try to answer it: Baryancistrus, at least species that have been in this genus more than a few months, have been spawned, but only vague reports on this. If you search for "Gold nugget spawn", there's a couple of threads on the subject...

They are probably not that much more difficult per se, it's just that most species grow quite a bit bigger than the Hypancistrus and Ancistrus species that are commonly bred - this doesn't help breeding efforts, if nothing else because the tank needs to be much bigger, limiting the number of people that are "available" to try this out There are much more people with a couple of 20-30g tanks than there are people with 100g tanks... And those with 100g tanks quite often do not use them for breeding attempts, but as display tanks for medium-large species of various kinds...

--
Mats