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Two more new clawed salamanders, Onychodactylus intermedius and O.fuscus.

FrogEyes

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NATSUHIKO YOSHIKAWA & MASAFUMI MATSUI, 2014. Two new Salamanders of the genus Onychodactylus from Eastern Honshu, Japan (Amphibia, Caudata, Hynobiidae). Zootaxa 3866 (1): 053-078.


Abstract


We describe two new species of hynobiid salamanders in the genus Onychodactylus from eastern Honshu, Japan, based on the morphological and genetic evidence. Onychodactylus intermedius sp. nov. is distributed in southern part of Tohoku District and northern Ibaraki and Niigata Prefectures, and was previously reported as S-Tohoku group. Onychodactylus intermedius belongs to the O. japonicus species complex, and differs from the other congeners in having relatively long tail, narrow head, short snout, 18 presacral vertebrae, and distinctly curved vomerine tooth series without gap. Onychodactylus fuscus sp. nov. is known from only four localities in Fukushima and Niigata Prefectures of Tohoku and Hokuriku Districts. It also belongs to the O. japonicus complex, but lacks the dorsal stripe, which is a diagnostic character of the species complex. In other characteristics, O. fuscus differs from the other congeners in having comparatively long tail, wide head and internarial space, shallowly curved vomerine tooth series with gap, and relatively few vomerine teeth. Both species described here breed in winter. Phylogenetically, the two new species are closely related to each other, forming a well-supported clade with O. tsukubaensis as their sister species. Onychodactylus intermedius sp. nov. is known to be parapatric with O. japonicus and O. nipponoborealis without hybridization, whereas O. fuscus sp. nov. is sympatric with O. japonicus at least in a single known locality, and analysis of microsatellite loci indicates they are reproductively isolated.

Preview here:
http://www.mapress.com/zootaxa/2014/f/z03866p078f.pdf
Full article, paid access:
Zootaxa 3866 (1); List of papers
 
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    Im so frustrated right now. My axolotl WONT eat and my tank still isnt looking too good. Some extra stress i needed.
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  • John:
    Sorry to hear that Shane. Did you post about it?
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  • Shane_Yogurt:
    No, I havent. Im not really sure why he wont eat. Hes in a 1 gallon tub and still a juvenile. When i offer food he swims away from it. Does he need some extra time? or is this something I should be worried about.
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  • JulMl:
    Hello everyone! I’m new in this world and i need some advices please! I have 2 axolotl babies and currently the water from the tank is from bottled water ( all parameters are good) but i want to change 50% of the water with city tap water. My question is how to change it? Do i need to get axis out, do the change, add the prime, wait (how much?) until its dechlorinated or i can add the tap water directly into the tank with axis in it, and add the prime conditioner? Thank you!!
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  • Asmold1:
    1. You dont need to take them out of the tank to change the water as long as you pour it in slow as to not rattle them around too much
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  • Asmold1:
    2. add the prime to your tap water, for most conditioners the consensus is 5 minutes of waiting time
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  • Asmold1:
    3.After 5 minutes it should be safe to add
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  • JulMl:
    Thank you so much !!
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  • Asmold1:
    I private messaged you a bit clearer instructions just in case
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    Where can I get blackworms?
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    Ebay or Eastern Aquatics
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    Does anyone know someone who can ship axolotls to hawaii? I recently did a water change and my axolotl died and there are no axos for sale right now.
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  • Sylvia88:
    Hello I'm wondering if fridging axolotl is necessary when giving it a salt bath? My fridge is unpredictable it just changes from freezing temperature to melting by itself. And driving me crazy. So I would not be keen to put my axie in these because of the sudden temperature changes it may experience. Can I leave him in a clean dechlorinated water tub in some of the room? Would I then need to refrigerate the salt water ? Or would I just keep it in a same room temperature?! I have everything ready for him to get a salt bath but just wanted to check about this fridging before I do ( waited for approval to join the forum:)
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    FYI I noticed a white fluffy strings on his gills yesterday. And looking through the forum and some pictures it looks like fungus .
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    Freaking out
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    Oh I thought you meant my axolotl lol
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  • Quetzalotl:
    I read the fridge is for if they're stressed or huge infections and erratic temp changes will cause stress
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  • Quetzalotl:
    If the water is already cool then the infection might prefer cold water
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    Quetzalotl: If the water is already cool then the infection might prefer cold water +1
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