Pachytriton wuguanfui, new species of Hunan and Gunagxi

FrogEyes

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Zhi-Yong Yuan, Bao-Lin Zhang, & Jing Che, 2016. A new species of the genus Pachytriton (Caudata: Salamandridae) from Hunan and Guangxi, southeastern China. Zootaxa 4085 (2): 219–232.


Abstract


Despite recent descriptions of multiple new species of the genus Pachytriton (Salamandridae), species richness in this China-endemic newts genus likely remains underestimated. In this study, we describe a new species of Pachytriton from northeastern Guangxi and southern Hunan, southeastern China. Both molecular analyses and morphological characters reveal that the new species can be distinguished from its congeners. The mitochondrial gene tree identified the new lineage highly divergent (uncorrected p-distance > 5.8 % by mitochondrial gene) from currently recognized species and placed it as the sister species of P. xanthospilos and P. changi. Furthermore, a nuclear gene haplotype network revealed a unique haplotype in the new populations. Statistical species delimitation using Bayes factor strongly supported the evolutionary independence of the new species from the closely-related P. xanthospilos. Morphologically, the new species is characterized by a uniformly dark brown dorsum without bright orange dots or black spots; irregular orange blotches on the venter; tips of fingers and toes orange on the dorsal side; moderately developed webs on the side of digits; absence of costal grooves between the axilla and groin; and widely open vomerine tooth series.


A new species of the genus Pachytriton (Caudata: Salamandridae)  from Hunan and Guangxi, southeastern China | YUAN | Zootaxa


The paper includes a couple of color images of the new species, a distributional map of the genus [albeit lacking most known localities for the genus – localities are those used for analysis in this paper only], and a set of morphological traits which can be used to distinguish [usually] most species [mainly this one with respect to all others]. Habitat images and descriptions are included, along with some behavioral information and sympatric species. Separate status from the closely related P.changi and P.xanthospilos is well-established. However, no new data are yet available for P.changi. The latter species was described from two specimens of unknown origin, a couple of weeks earlier than the better-studied P.xanthospilos from known localities. These two are slightly different in mtDNA and morphology, but otherwise nearly identical. Some consider these to be one species [P.changi], but many authors tentatively treat them as separate, based on their identified differences and the fact that no natural location for P.changi is yet known (rendering it something of a doubtful, ie unidentifiable, species in some opinions). The authors consider it likely that additional species remain to be discovered in the many relictual mountain forests of southern China.


Many thanks to the authors for providing the paper.


P.archospotus dorsal black spots present
P.brevipes dorsal black spots present
P.granulosus dorsal black spots present or absent, costal grooves present


P.changi dorsal black spots absent, orange dorsolateral spots present
P.xanthospilos dorsal black spots absent, orange dorsolateral spots present
P.wuguanfui dorsal black spots absent, orange dorsolateral spots absent, orange ventral spots present, costal grooves absent, tips of digits dorsally orange
P.moi dorsal black spots absent, orange ventral spots absent
P.feii dorsal black spots absent, costal grooves present, tips of digits dorsally black
P.inexpectatus dorsal black spots absent, costal grooves present
 
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    His gills seem kinda small, I don't think that's normal but I'm not a huge expert on axolotls
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    Well, again, I'm no expert. But I did just read axolotls are supposed to have a body about as wide as their head. The gills I'd say are the biggest problem, which could reduce oxygen intake, which could make a whole mess of problems.
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    Hello, I am a new owner of a 3 month old axolotl, and although I have done a lot of research on axolotls, I can barely find any for babies. If anyone can help me with these questions, I would be super happy. How many hours do baby axolotls tend to sleep per day? How many times should I feed it and what would be considered too much (it's current diet is freeze-dried brine shrimp and blood worms, and I currently feed it around 3 bloodworms since they are not that big)? How many times a week should I change the water and how? I have a good filter and use Prime as my conditioner to remove the chlorine and other chemicals, but I still need to figure out how to deal with ammonia and such in the water. How do I clean it's waste (should I use a dropper to easily pick it up)? I need a better cooling system because currently I use ice packs on the side of the tank and I make sure to angle my ac so that it hits the tank.
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  • LauraLobster:
    I also leave the lid open during the day so that evaporation can cool down my tank. I want to buy a fan, but since winter is coming I won't have to buy one yet. Lastly, what water testers are effective and affordable for a broke student like myself? Please, if anyone has any advice I will love to hear it. I care for this creature too much at this point, but I have no one to help me with caring for it other than the internet :,)
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    Hi LauraLobster I am a new owner of axolotls myself and have been getting advice from things like this, I feed mine twice a day on blackworms and brine shrimp blood worms are more of a treat food, a question on where you are keeping you axolotl are you keeping it in the main tank or in a tub also if in the tank did you cycle it first? and if not i suggest tubing it until the tank it cycled, mine are still tubed since I was given bad advice by the shop people about cycling my tank and am still in the process of cycling it. I use pipettes to clean up the mess of my axolotls. I use the API mater test kit for freshwater tanks I am also a student and had to look around to find it the cheapest I could.
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    Hi LauraLobster, like you I got my first ever Axolotl back in July. Iv found that he has enjoyed and eaten red wigglers well. They are a good source of protein and help provide the nutrients a young lotl needs to grow up big and strong. You will probably need to break it up into smaller pieces until they get bigger but they are what I have primarily fed my buddy since I got him. He’s actually so picky that he won’t even eat his pellets anymore and will hold out till he gets his favorite wormy.
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    As long as its cleaned yeah! You can even make overhangs if you have enough pieces to make nice caves and platforms
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    Ok, thanks!
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  • MVM1991:
    My pleasure! River rocks work well too, and go rather well with all kinda lung less salamanders,
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  • Mark.H:
    Great! I'll use some of those too. Thanks for the help. :)
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    Mark.H: Great! I'll use some of those too. Thanks for the help. :) +1
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