Xyliphius sofiae: A new species of blind fish

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bekateen
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Xyliphius sofiae: A new species of blind fish

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Tiago P. Carvalho, Roberto E. Reis, and Mark H. Sabaj. 2017. Description of a New Blind and Rare Species of Xyliphius (Siluriformes: Aspredinidae) from the Amazon Basin Using High-Resolution Computed Tomography. Copeia, 105(1), 14-28.

http://www.asihcopeiaonline.org/doi/abs ... /CI-16-456
Carvalho et al. wrote:ABSTRACT
, new species, is described based on a unique specimen exhibiting four autapomorphies: eyes absent vs. present (though reduced); color pale, lacking pigment vs. head and body darkly pigmented; branchiostegal rays five vs. four; and unculiferous tubercles on posterior body distributed evenly vs. enlarged unculiferous tubercles typically arranged in five distinct rows above pelvic-fin base to posterior end of caudal peduncle. In addition, the pectoral fin of X. sofiae, new species, has one ossified proximal radial vs. two in congeners (except X. magdalenae, not examined). Xyliphius sofiae, new species, differs from all congeners except X. lepturus by snout tip elongated and narrowly rounded vs. short and broadly rounded, often with small median notch; fifth ceratobranchial relatively narrow with elongate acicular teeth vs. broadly expanded, leaf-shaped, with shorter and broader, conical teeth; anterior limits of branchial apertures separated by distance less than length of aperture vs. greater than length of aperture; anal-fin rays modally nine vs. seven; and lateral line extending onto base of caudal-fin rays vs. finishing in hypural region. Based on the single specimen collected in the main channel of the Río Amazonas near Iquitos, Peru, we describe the osteology of X. sofiae, new species, using a non-invasive technique: high-resolution X-ray computed tomography (HRXCT). We consider Xyliphius lombarderoi Risso and Risso, 1964, a species based on a unique holotype that is now lost, to be a subjective junior synonym of X. barbatus Alonso de Arámburu and Arámburu, 1962. Variable characteristics are summarized for the seven species of Xyliphius treated here as valid, and their distributions are plotted based on a comprehensive review of museum specimens.
After seeing photos of this, I'm wondering if this is the same as . Does anybody know more about ?

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Re: Xyliphius sofiae: A new species of blind fish

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Yes, it's the same thing, I've amended the cat-elog accordingly.

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Re: Xyliphius sofiae: A new species of blind fish

Post by bekateen »

Thanks Jools. :-)

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Re: Xyliphius sofiae: A new species of blind fish

Post by bekateen »

Jools wrote: 13 Mar 2017, 07:22I've amended the cat-elog accordingly.
Question about Cat-eLog entries: I know with L numbers and C numbers, once a species gets a proper scientific name, the L or C number gets reduced to a "common name." Is that the same for designations like "species (1)" or "species (2)?" I see it was the case for Ancistrus sp(3).

Since there are references to Xyliphius sp(1) in the forums, perhaps it is wise to keep this name as a "common name." At the same time, I imagine that since this fish is rare, the "common name" wasn't a particularly "common" name since few people probably ever even knew about it or cared.

Is it be possible to add the name "sp(1)" as a common name but simultaneously hide it/make it invisible, so that anyone searching for follow-ups to old threads can connect the old references to the new formal species name when using the quick find, but future usage doesn't get encouraged or promoted? I know we can "hide" synonyms, but I don't see the option to "hide" common names.

If it's not possible to hide the name "sp(1)" as a common name while at the same time retaining it in order to link "sp(1)" for future searches, would it be okay to list it as a "hidden synonym"? Or would that be just wrong on too many levels?

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Re: Xyliphius sofiae: A new species of blind fish

Post by Bas Pels »

Once, I think it was when Ancistrus sp 3 was renamed A cirrhosus, I asked the same question. If I rememeber coorectly, in that time this was not possible. But it could also have been undesirable
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Re: Xyliphius sofiae: A new species of blind fish

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I've got this covered - you put it in as a hidden synonym using the admin edit synonym link. It'll then work in the quick find and clog tags but won't otherwise be visible.

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Re: Xyliphius sofiae: A new species of blind fish

Post by bekateen »

Thanks Jools. :-) Done.
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