24/11/2022
𝑀𝑜𝑒𝑚𝑎 𝑗𝑢𝑎𝑛𝑑𝑒𝑟𝑖𝑏𝑎𝑒𝑛𝑠𝑖𝑠, a quite stunning new species of killifish from the Piraí watershed in the Southwest Amazon basin is described in Neotropical Ichthyology journal.
Open-access - https://www.scielo.br/j/ni/a/XGLB7WpGCvGMqdxYbwZqWdy/
𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗧𝗶𝘁𝗹𝗲
A new species of the seasonal killifish genus 𝑀𝑜𝑒𝑚𝑎 (Cyprinodontiformes: Rivulidae) from the Piraí watershed in the Southwest Amazon basin
𝗖𝗶𝘁𝗮𝘁𝗶𝗼𝗻
Drawert HA. A new species of the seasonal killifish genus 𝑀𝑜𝑒𝑚𝑎 (Cyprinodontiformes: Rivulidae) from the Piraí watershed in the Southwest Amazon basin. Neotrop Ichthyol. 2022; 20(4):e220067. https://doi.org/10.1590/1982-0224-2022-0067
𝗔𝗯𝘀𝘁𝗿𝗮𝗰𝘁
𝑀𝑜𝑒𝑚𝑎, a genus of the Rivulidae family, currently comprises 20 valid species. Most of these species inhabit temporary pools in the Amazon basin and only one species is found in the upper Paraguay basin.
A new member of this genus from the upper Río Madeira drainage is here described. Males of the new species differ from all congeners by the combination of a color pattern consisting of oblique, sometimes chevron-like, irregular rows of red and light blue double-dots on body; dark yellowish to golden pectoral fins with no visible markings; and a stripe pattern on the ventral section of caudal fin with a very narrow black marginal line, intermittent or even absent.
The existence of infrageneric species groups within 𝑀𝑜𝑒𝑚𝑎, the geographic distribution and taxonomic aspects of the species present in the Ríos Mamoré and Iténez/Guaporé rivers drainages, and the observation of intraspecific aggression between males and amphibious lifestyle in the new species are discussed.
𝗘𝘁𝘆𝗺𝗼𝗹𝗼𝗴𝘆
Named 𝑗𝑢𝑎𝑛𝑑𝑒𝑟𝑖𝑏𝑎𝑒𝑛𝑠𝑖𝑠 in reference to the name of the ranch “Juan Deriba” where the type locality is situated. An adjective.
𝗜𝗺𝗮𝗴𝗲
𝑀𝑜𝑒𝑚𝑎 𝑗𝑢𝑎𝑛𝑑𝑒𝑟𝑖𝑏𝑎𝑒𝑛𝑠𝑖𝑠, MNKP 16539, holotype, male, 41.9 mm SL (24 days after collection, left side), Bolivia, Santa Cruz, Santa Rosa del Sara. Photo by papers author(s).
Neotropical Ichthyology © - Paper released under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence.
https://creativecommons.org/licenses/by/4.0/
