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Re: [Killietalk] Rivulus question
According to Costa, R. dorni is a junior synonym of Kryptolebias brasiliensis
(formerly R. brasiliensis, of course). I have seen this animals several times,
but have never kept it successfully. My first encounter was a commercial import
from Aquarium Hamburg in the early 60's. They substituted it for something else
in a shipment to me. The second time was in a shipment of misc. Rivulus from a
Brazilian dealer, Carlos Stegemann, some years later; this shipment was
arranged by Harald Schultz after I nagged him for it for over a year.
K. brasiliensis is an attractive species, and it does have blue metallic shine
on the flanks (males only). But most of its attractiveness comes from a
distinctive pattern of browns and black (bars). Aesthetically, I think of it
as in the same category as K. caudomarginatus or Pterolebias peruensis, or even
Aplocheilus dayi. From a hobbyist viewpoint, both K. brasiliensis and K.
caudomarginatus are among those species that are episodically imported, attract
a temporary following because of their novelty, and then are lost when they
prove difficult to breed and have no bright red, blue, or yellow colors to
sustain interest in them. Both species were available in Germany (as R. dorni
and R. ocellatus, respectively) in the 1920's. I understand that they are both
available currently as well.
Quoting Allan Semeit <azkillie at cox_net>:
> Back in 1973, I collected a Rivulus species at the Federal Rural University
> west of Rio de Janeiro, Brazil. The name given for the fish was Rivulus
> dorni. As I remember, they were predominantly a blue fish. Unfortunately,
> those I brought back were quickly lost by myself and other members of the
> Bay Area Killifish Association.
>
> There have been a number of recent collections around Rio de Janeiro and I'm
> wondering if this fish is back in the hobby? I believe there is a species
> called Rivulus janeiroensis (or something spelled similar). Is this the
> same species with a new name? Or, is it another new Rivulus? Does anyone
> have a photo? Thanks!
>
> Allan from Arizona
>
>
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Bruce J. Turner
Dept. Biol. Sci.
VIRGINIA TECH
Blacksburg, VA 24061
(540)-231-7444 (V)
"...We are Hokies. We will prevail..."
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