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Peten Cichlids

Home Forums Fresh and Brackish Water Fishes Peten Cichlids

This topic contains 6 replies, has 3 voices, and was last updated by  coelacanth 9 years ago.

Viewing 7 posts - 1 through 7 (of 7 total)
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  • #300352

    johnpeten
    Participant

    I think we have a new species.
    A pair of these were discovered in last nights collection. They don’t match with our Mayan Cichlid, the melanura or the yellow meeki.
    In the early morning their dark blue/black markings are very distinct. There is a dark blotch on the dorsal fin and and one on the lower gill plate. Behind the head the vertical markings form a V shape. We thought about a convict but are not sure.
    It is not as yellow as it appears in the photos.

    Attached files

    #315054

    johnpeten
    Participant

    This morning my 13 year old fisherman who uses his grandfather’s cayuco (dug out canoe) asked if I needed anything special from the Lake. My five 40 UK Gal tanks are now fully populated but I am still in search of the Peten Molly. So I asked him to bring me some Mollies if he found any, called poopoos here.
    This evening he arrived with the usual cut down coke bottle but to my surprise they were three 2 inch cichlids. At first glance I said “Oh Yellowjackets” but he disagreed, In view of their orange colours I also have my doubts.
    I must decide what to do with them tomorrow, any help would be appreciated.

    Attached files

    #315055

    johnpeten
    Participant

    Dr Pez has come to the rescue again.
    His picture confirms this is the yellowjacket and furthermore that the lower picture of the fish with more colour and rounded dorsal and caudal fin is female. The picture above that shows the male with pointed dorsal and caudal and less colour.
    This is the photo from Dr Pez.

    Attached files

    #315057

    coelacanth
    Participant

    Those new fish are “Cichlasoma” salvini (they are likely to have a new genus erected for them).

    #315059

    johnpeten
    Participant

    QUOTE (coelacanth @ Sep 10 2009, 03:39 AM) < {POST_SNAPBACK}>
    Those new fish are “Cichlasoma” salvini (they are likely to have a new genus erected for them).


    t was in 1862 when Albert Günther, the taxonomist-author of more than thirty descriptions of Central American cichlids, published in the Catalogue of fishes in the British Museum the scientific description of this beautiful fish. Günther examined 14 specimens with a type locality of Rio Santa Isabel, in the northern part of Guatemala. The species name was given in honor to the English explorer O. Salvin, who in previous years had formed part of an expedition that retrieved an extensive collection of Central American fauna for the British museum, among which the ‘Cichlasoma’ salvini types were found.

    The “mojarra pico de gallo” was initially placed by Günther in the genus Heros. Later, in 1904, it was another English taxonomist, Tate C. Regan, who placed this fish in the newly created genus Parapetenia (Regan, 1904). Regan relegated the genus Parapetenia as a section or subgenus of Cichlasoma a year afterwards. Parapetenia subsequently proved to be a junior synonym of Nandopsis Gill 1862. The taxonomic status remained unchanged until the genus Cichlasoma collapsed when the Swedish Ichthyologist Sven Kullander (Kullander, 1983) restricted it to some South American species related to the type species Cichlasoma bimaculatum. This has resulted in more than 100 species being left without a proper generic classification since.

    It has been suggested that in accordance with the feeding techniques of this fish, it could be considered a member of the genus Nandopsis (Konings, 1989), which goes in accord to Regan’s initial placement of the fish in Parapetenia. However, Dr. Robert Rush Miller from the University of Michigan (personal communication, 1993), who is studying the cichlids from the Antilles, has told me that perhaps the Nandopsis genus will be restricted to the Antillean cichlids, including the oldest known extinct representative of Central American cichlids, Cichlasoma woodringi, from the island of Hispaniola.

    Given this state of affairs, the “Mojarra pico de gallo” will have to wait for further studies to be carried out for its proper generic placement. In this article, however, and until such studies are carried out, I will adopt Kullander’s suggestion (Kullander 1996) to designate previous Cichlasomines (now Heroines) without a genus assigned yet with quotation marks: “Cichlasoma.”

    It is a good job you are around to put me straight. I put these yellow belly cichlids in the tank with Freddy. Although the markings are similar they lit up like neon signs by comparison.
    In view of their aggressive nature when they grow up I suppose yet another tank has to go on the production line.
    Once again many thanks for your expert eye.

    #315060

    mzapater
    Participant

    Hi John.

    Wonderful fish you´re getting! And they are wild ones so still more valuables.

    Don´t have much experience with the C. salvini, although a friend kept them for years. Even in a 600 l tank with Parachromis managuense, they were the kings of the tank.

    Very very aggresive behaviour when breeding. Have an eye on the female as well (the one with redder belly usually).

    Best regards,

    Manuel…

    #315061

    coelacanth
    Participant

    QUOTE (johnpeten @ Sep 10 2009, 01:52 PM) < {POST_SNAPBACK}>
    Given this state of affairs, the “Mojarra pico de gallo” will have to wait for further studies to be carried out for its proper generic placement. In this article, however, and until such studies are carried out, I will adopt Kullander’s suggestion (Kullander 1996) to designate previous Cichlasomines (now Heroines) without a genus assigned yet with quotation marks: “Cichlasoma.”


    One thing to note with this fish is the dorsal pigmentation in the female which may show relationships with Rocio and Archocentrus/Amatitlana/Cryptoheros.

    QUOTE
    It is a good job you are around to put me straight. I put these yellow belly cichlids in the tank with Freddy. Although the markings are similar they lit up like neon signs by comparison.
    In view of their aggressive nature when they grow up I suppose yet another tank has to go on the production line.


    Yeah, they’re bad little boys and girls, but stunning. It does look like you have both sexes there (male is upper fish in photo I would say)

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