Museum Killifish

[Maastrichianguy]

Ok i went to this museum and they have this one species of Killifish there but i do not know what species it is like judging from the color scheme and the body shape.

 

[elephantnose3334]

I think this is a lyretail killifish.

 

[Maastrichianguy]

I think this is a lyretail killifish.

Well it is in the tank that says Peruvian Pond.

 

[elephantnose3334]

Well it is in the tank that says Peruvian Pond.

The lyretail killies live in Africa, not Peru. I don't think they are from Peru. @GaryE might know about killies better than me.

 

[Innesfan]

It's a 'rivulus'-- Laimosemion rectocaudatus. Formerly known as Rivulus rectocaudatus before the revision of Rivulus. There are several stunning Laimosemion, all small jewels.

 

[Maastrichianguy]

It's a 'rivulus'-- Laimosemion rectocaudatus. Formerly known as Rivulus rectocaudatus before the revision of Rivulus. There are several stunning Laimosemion, all small jewels.


View attachment 366746

The common names for Laimosemion Rectocaudatus?

 

[elephantnose3334]

It's a 'rivulus'-- Laimosemion rectocaudatus. Formerly known as Rivulus rectocaudatus before the revision of Rivulus. There are several stunning Laimosemion, all small jewels.


View attachment 366746

Oof, I thought it was a lyretail at first, but wow, I thought we never had killies in Peru.

 

[Innesfan]

The common names for Laimosemion Rectocaudatus?

I am not aware there is one. And if there is one published somewhere it is neither common nor widely accepted but rather an importer or supplier's invention. Most 'common' names...aren't.

In the earlier days of the hobby there was a greater percentage of them--neon tetras, Jack Dempsey cichlids, Pearl Gouramis, and so on--which were truly popular, commonly used names and helpful in the matter of identification, but with the flood of species that have entered the hobby, this is no longer true. The scientific name is your fail-safe means of ID, especially in killies.

 

[Innesfan]

Oof, I thought it was a lyretail at first, but wow, I thought we never had killies in Peru.

There are more killifish species in South America than Africa (and there are a lot of 'em in Africa!) and as is the case on both continents, there are both annual and non-annual species.

 

[GaryE]

With killies, you have to get used to two things.

One, the name "killifish" tells you almost nothing, because they are so diverse. North and South America, Africa, Europe, Asia - that family was happening before the continental break up.

Two - common names are given to common fish. Laimosemion rectocaudatus is a fish I've kept, and I like. But it is a serious rarity, as are all South American non annual killies. You can spend 50 years in the hobby and never see it if you don't live in a place with killie club.

I started with killies in 1992 (I was a late starter) and I have seen that fish 3 times ( I kept it once).

 

[Back in the fold]

With Killifish you better brush up on your Latin . That’s all the name the vast majority have .

 

[Innesfan]

With Killifish you better brush up on your Latin . That’s all the name the vast majority have .

We spoke too soon. Dan's has them on his list and has slapped the name "Orange Spadetail Killiifish" on them. If there weren't a photo I'd have no idea what he was talking about.

 

[anewbie]

With killies, you have to get used to two things.

One, the name "killifish" tells you almost nothing, because they are so diverse. North and South America, Africa, Europe, Asia - that family was happening before the continental break up.

Two - common names are given to common fish. Laimosemion rectocaudatus is a fish I've kept, and I like. But it is a serious rarity, as are all South American non annual killies. You can spend 50 years in the hobby and never see it if you don't live in a place with killie club.

I started with killies in 1992 (I was a late starter) and I have seen that fish 3 times ( I kept it once).

fyi:

https://dansfish.com/product.detail/7063/Orange-Spadetail-Killifish-(Laimosemion-rectocaudatus)

 

[GaryE]

They are one of the more common ex-Rivulus. Now I confess - I didn't like them... they are very quiet and jump like mad. Plus they need warmer water than my killie set up.

I'm an old school guy, seeing a fish is seeing it live, not on an offering from a seller. But stuff from Dan's or Wet Spot is often among the rarest.

 

[Back in the fold]

We spoke too soon. Dan's has them on his list and has slapped the name "Orange Spadetail Killiifish" on them.

The Philistine ! May the fleas of a thousand camels infest his armpits for this sacrilege .