This work adds a new eyeless species of the genus Micranops Cameron, 1913 (Staphylinidae, Paederinae, Scopaeina) to the endogean Coleoptera of the Bolivian fauna. The loss of eyes is usually associated with adaptations to subterranean habitats, although M. bolivianus Guzman & Żyła sp. nov. was collected from leaf litter. We also report new occurrences for the genus west of the Andes mountain range. Our work increases the number of known Neotropical Micranops species to seven and extends the known distribution range for the genus in South America.
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http://dx.doi.org/10.1007/s13744-023-01106-5 | DOI Listing |
Nat Commun
January 2025
Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil.
Eye loss occurs convergently in numerous animal phyla as an adaptation to dark environments. We investigate the cave planarian Girardia multidiverticulata (Gm), a representative species of the Spiralian clade, to study mechanisms of eye loss. We found that Gm, which was previously described as an eyeless species, retains rudimentary and functional eyes.
View Article and Find Full Text PDFLeptomastax Pirazzoli includes 25 species mainly distributed in the Mediterranean region. Leptomastax minutissima sp. n.
View Article and Find Full Text PDFEye loss is a hallmark trait of animals inhabiting perpetual darkness, such as caves. The Mexican tetra ( provides an unparalleled model for studying the genetic basis of eye loss. There are two interfertile morphs of the Mexican tetra, sighted surface fish and multiple independently evolved eyeless, blind cavefish populations.
View Article and Find Full Text PDFAdv Sci (Weinh)
November 2024
Institute of Bionic and Micro-Nano Systems, School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, China.
Fish can use hydrodynamic stimuli, decoded by lateral line systems, to explore the surroundings. Eyeless species of the genus Sinocyclocheilus have evolved conspicuous horns on their heads, whereas the specific function of which is still unknown. Meanwhile, the eyeless cavefish exhibits more sophisticated lateral line systems and enhanced behavioral capabilities (for instance rheotaxis), compared with their eyed counterparts.
View Article and Find Full Text PDFZookeys
August 2024
Department of Plant and Environmental Sciences, Clemson University, 277 Poole Agricultural Center, Clemson, South Carolina, 29634, USA Clemson University Clemson United States of America.
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