Abyssal_aquariums

18/01/2024

18/01/2024

Four new species of snakehead are described from Myanmar - 𝐶ℎ𝑎𝑛𝑛𝑎 𝑟𝑎𝑘ℎ𝑖𝑛𝑖𝑐𝑎, 𝐶. 𝑟𝑢𝑏𝑜𝑟𝑎, 𝐶. 𝑐𝑜𝑐𝑐𝑖𝑛𝑒𝑎, and 𝐶. 𝑝𝑦𝑟𝑜𝑝ℎ𝑡ℎ𝑎𝑙𝑚𝑢𝑠 (all members of the '𝑔𝑎𝑐ℎ𝑢𝑎 group'). All are well known to fishkeepers who keep these beautiful species, being sought-after imports into the hobby.

𝐶ℎ𝑎𝑛𝑛𝑎 𝑝𝑦𝑟𝑜𝑝ℎ𝑡ℎ𝑎𝑙𝑚𝑢𝑠 = 𝐶ℎ𝑎𝑛𝑛𝑎 𝑠𝑝. "fire and ice" / "Tenasserim"
𝐶ℎ𝑎𝑛𝑛𝑎 𝑟𝑎𝑘ℎ𝑖𝑛𝑖𝑐𝑎 = 𝐶ℎ𝑎𝑛𝑛𝑎 𝑠𝑝. "mimetic pulchra" / "Rakhine Yoma"
𝐶ℎ𝑎𝑛𝑛𝑎 𝑟𝑢𝑏𝑜𝑟𝑎 = 𝐶ℎ𝑎𝑛𝑛𝑎 𝑠𝑝. "red fin" / "Mogaung"
𝐶ℎ𝑎𝑛𝑛𝑎 𝑐𝑜𝑐𝑐𝑖𝑛𝑒𝑎 = 𝐶ℎ𝑎𝑛𝑛𝑎 𝑠𝑝. "ignis"

Open-access (direct PDF) -https://lkcnhm.nus.edu.sg/wp-content/uploads/sites/10/2024/01/RBZ-2024-0001.pdf

𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗧𝗶𝘁𝗹𝗲
Four new species of 𝐶ℎ𝑎𝑛𝑛𝑎 from Myanmar (Teleostei, Labyrinthici, Channidae)

𝗖𝗶𝘁𝗮𝘁𝗶𝗼𝗻
Ralf Britz, Tan Heok Hui & Lukas Rüber. Four new species of 𝐶ℎ𝑎𝑛𝑛𝑎 from Myanmar (Teleostei, Labyrinthici, Channidae). Raffles Bulletin of Zoology 72: 1–25. https://doi.org/10.26107/RBZ-2024-0001

𝗔𝗯𝘀𝘁𝗿𝗮𝗰𝘁
We describe four new species of 𝐶ℎ𝑎𝑛𝑛𝑎 from Myanmar, all members of the Gachua group.

𝐶ℎ𝑎𝑛𝑛𝑎 𝑟𝑎𝑘ℎ𝑖𝑛𝑖𝑐𝑎, new species, is a species endemic to west-flowing streams on the western slope of the Rakhine Yoma in Rakhine State; 𝐶. 𝑟𝑢𝑏𝑜𝑟𝑎, new species, occurs in mountain streams south of Mogaung, Kachin State; 𝐶. 𝑐𝑜𝑐𝑐𝑖𝑛𝑒𝑎, new species, co-occurs with 𝐶. 𝑏𝑢𝑟𝑚𝑎𝑛𝑖𝑐𝑎 in streams north of Putao, also Kachin State, at the foothills of the Himalayas; and 𝐶. 𝑝𝑦𝑟𝑜𝑝ℎ𝑡ℎ𝑎𝑙𝑚𝑢𝑠, new species, is found in streams in Tanintharyi Region at the southernmost tip of Myanmar, bordering Thailand.

All four species are readily diagnosed by their colour pattern from other Gachua group taxa. They show genetic distances of 3.5–19.9% in the COI barcoding gene to other Myanmar members of the Gachua group.

𝗘𝘁𝘆𝗺𝗼𝗹𝗼𝗴𝘆
𝐶ℎ𝑎𝑛𝑛𝑎 𝑝𝑦𝑟𝑜𝑝ℎ𝑡ℎ𝑎𝑙𝑚𝑢𝑠 - The species name is derived from the Greek words πῦρ (𝑝𝑦𝑟), fire, and ὀφθαλμός (𝑜𝑝ℎ𝑡ℎ𝑎𝑙𝑚𝑢𝑠), eye. It was inspired by the bright orange area under the eye, a colour reminiscent of that of glowing embers. Used as a noun in apposition.
𝐶ℎ𝑎𝑛𝑛𝑎 𝑟𝑎𝑘ℎ𝑖𝑛𝑖𝑐𝑎 - The species name is derived from the name of the area where it occurs, the Rakhine Yoma in western Myanmar, an adjective.
𝐶ℎ𝑎𝑛𝑛𝑎 𝑟𝑢𝑏𝑜𝑟𝑎 - The species name, 𝑟𝑢𝑏𝑜𝑟𝑎, a noun in apposition, is derived from the Latin nouns ‘𝑟𝑢𝑏𝑜𝑟’ for redness, and ‘𝑜𝑟𝑎’ for rim. The name was inspired by the orange-red rim of the dorsal and caudal fins.
𝐶ℎ𝑎𝑛𝑛𝑎 𝑐𝑜𝑐𝑐𝑖𝑛𝑒𝑎 - The species name is derived from the Latin adjective ‘𝑐𝑜𝑐𝑐𝑖𝑛𝑒𝑢𝑠’, -a , -um, red, alluding to the reddish markings on the head and sides of the body.

𝗣𝗵𝗼𝘁𝗼 𝗖𝗿𝗲𝗱𝗶𝘁
First (top) - 𝐶ℎ𝑎𝑛𝑛𝑎 𝑝𝑦𝑟𝑜𝑝ℎ𝑡ℎ𝑎𝑙𝑚𝑢𝑠 colouration in life, ZRC 64934, 121.3 mm SL; Myanmar, Tanintharyi Region, Lon Phaw, tributary
of Kra Buri.
Second - 𝐶ℎ𝑎𝑛𝑛𝑎 𝑟𝑎𝑘ℎ𝑖𝑛𝑖𝑐𝑎 BMNH 2019.10.16.269–275 (bottom), not measured, ca. 110 mm SL.
Third - 𝐶ℎ𝑎𝑛𝑛𝑎 𝑟𝑢𝑏𝑜𝑟𝑎 95.5 mm SL; BMNH 2019.10.16.195–206 (bottom), not measured, ca. 90 mm SL.
Fourth - 𝐶ℎ𝑎𝑛𝑛𝑎 𝑐𝑜𝑐𝑐𝑖𝑛𝑒𝑎 colouration in life, ZRC 64932, 120.5 mm SL; Myanmar, Kachin State, unnamed stream near Putao.

Copyright © 2024 the Author(s). Published in Raffles Bulletin of Zoology journal. This paper is released under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence. https://creativecommons.org/licenses/by/4.0/

18/01/2024

🔓 • 2024 :: rakhinica, C. rubora, C. coccinea & C. pyrophthalmus • Four of Channa (Teleostei: : Channidae) from Myanmar
novataxa.blogspot.com/2024/01/channa.html
https://lkcnhm.nus.edu.sg/publications/raffles-bulletin-of-zoology/volumes/volume-72 🔓

Abstract :: We describe four new species of Channa from Myanmar, all members of the group. Channa , new species, is a species endemic to west-flowing streams on the western slope of the in State; C. rubora, new species, occurs in mountain streams south of Mogaung, State; C. coccinea, new species, co-occurs with C. in streams north of , also Kachin State, at the foothills of the Himalayas; and C. , new species, is found in streams in Region at the southernmost tip of Myanmar, bordering Thailand. All four species are readily diagnosed by their colour pattern from other Gachua group taxa. They show genetic distances of 3.5–19.9% in the COI barcoding gene to other Myanmar members of the Gachua group.



Channa sp. mimetic pulchra || Channa sp. red fin
Channa sp. ignis || Channa sp. fire and ice

R. Britz, Tan H. H. and L. Rüber . 2024. of Zoology. 72; Pp. 1–25.
https://lkcnhm.nus.edu.sg/publications/raffles-bulletin-of-zoology/volumes/volume-72/

18/01/2024

🔓 🦎 • 2023 :: amazonensis & P. shurugojalcapi • Two of gymnophthalmid lizards of the Genus Petracola ( : Cercosaurinae) from the Andes of northeastern , and their phylogenetic relationships
novataxa.blogspot.com/2024/01/shurugo.html 🦎
amphibian-reptile-conservation.org/issues.html 🔓
facebook.com/APFSAyac/posts/760207882804508

Abstract :: The small and semi-fossorial of the genus Petracola are distributed in the Andes from central to northern Peru, on both sides of the dry valley of the Marañon River. Very little is known about the of Petracola, but it is presumed that this genus harbors a higher number of species than is currently known. Here, we used a Maximum Likelihood (ML) molecular phylogenetic analysis using concatenated fragments of four mitochondrial genes (12S, 16S, cyt-b, and ND4) and one nuclear gene (c-mos), and the revision of museum specimens, to determine the species diversity of populations of Petracola on both sides of the . Our results show that Petracola is a monophyletic genus composed of three independent lineages. The frst lineage includes two undescribed species from the right side of the River, which we describe herein. The second lineage corresponds to P. , and the third lineage includes P. waka which contains undescribed species. Among the two new species from the right side of the Marañon River, P. can be identifed by having only the frst superciliary expanded to the dorsal surface, two pairs of genials in contact, absence of a loreal scale, venter orange with black spots forming a transverse band, absence of precloacal pores, and a maximum SVL of 43.0 mm in females; whereas P. can be identifed by having two genials in contact, absence of a loreal scale, two discontinuous superciliaries, black venter, dorsum dark brown or black with some cream spots, and an absence of precloacal pores. The two new species increase the diversity of this genus to seven species, four of which inhabit the right side of the dry valley of the Marañon River. However, like other genera of Andean lizards, the diversity of Petracola is still underestimated.



L. Mamani, V. J. Vargas, et al. 2023. Amphibian & Reptile Conservation. 17(1&2) [Taxonomic Section]: 161-173
amphibian-reptile-conservation.org/issues.html
facebook.com/APFSAyac/posts/760207882804508

18/01/2024

White butterfly

18/01/2024

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03/12/2022

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