Gymnotocinclus anosteos

Rabbit

Rabbit

Retired Staff
Apr 21, 2009
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Auckland, NZ
Interesting read, i have translated the page but if you have trouble reading it return to the home page where there is a translate option.:hi:
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000300006&lng=en&nrm=iso&tlng=en

ABSTRACT

Gymnotocinclus anosteos, a new genus and species, is described from a headwater stream of the upper rio Tocantins basin in central Brazil. The new taxon is distinguished from other loricariids by the extreme reduction of dermal plates, having an almost completely naked body. Three other diagnostic features are: the absence of the lateral connecting bone, absence of bifid hemal spines, and odontode tips in the last dermal plates on the caudal peduncle dorsally or anteriorly curved. These derived features are not shared with any other hypoptopomine genus and the new taxon is hypothesized to be a basal member of the subfamily. Character states proposed by previous phylogenies of the subfamily are examined in the new taxon and its relationships are discussed.
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D

dw1305

Global Moderators
Staff member
May 5, 2009
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Wiltshire nr. Bath, UK
Hi all,
You probably really don't want to know this, but the "bifid hemal spines" they lack are on the vertebrae (back bone) and would usually articulate with "anal-fin pterygiophores". Before you ask, pterygiophores, "The bones or cartilages with which the base of the rays of the fins articulate".

Also "Gymno" means naked, so I would interpret the description as it is a little flexible loricariid catfish, without body armour, that is not closely related to Otocinclus, but looks a bit like one.

cheers Darrel
 
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