Despite the current recognition of and as two separate valid species of China, neither species have been revised based on examination of their types and/or topotypical materials, nor have they genetically analyzed. In this study, examination of the holotype of showed that it has a serrated anterior edge of the pectoral spine, a slightly emarginate caudal fin, and longer maxillary barbels extending beyond the base of the pectoral spine, the characters shared with specimens currently identified as . Morphological comparisons and molecular analysis showed that specimens from mainland China, which are characterized by the three mentioned morphological features, represent a single species. According to the nomenclatural rule of priority, is a senior subjective synonym of . Within this concept, is widely distributed in the lower reaches of Yangtze River and coastal rivers in Zhejiang and Fujian Province and closely related to , which is endemic to Japan. The morphological differences and species-level genetic distance between and provide additional support for synonymization of and . The paper also describes ontogenetic color changes and coloration polymorphism in this species. Phylogeny of the group, to which belongs, is also discussed.
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http://dx.doi.org/10.3897/zookeys.1218.135630 | DOI Listing |
Zookeys
January 2025
Steinhart Aquarium, California Academy of Sciences, San Francisco, CA 94118, USA.
Herein, we describe a new species of perchlet found at depths of 100-125 meters in mesophotic coral ecosystems of the Maldives in the Indian Ocean. is unique in both morphology and coloration. The following combination of characters distinguishes it from all known congeners: dorsal fin X, 15; anal-fin rays III, 7; pectoral-fin rays 13 | 13 (13 | 12), all unbranched; principal caudal-fin rays 9 + 8; lateral line complete with 30-32 tubed scales; gill rakers 5 + 12; circumpeduncular scales 11-12; and absence of antrorse or retrorse spines on ventral margin of preopercle.
View Article and Find Full Text PDFJ Fish Biol
January 2025
Key Laboratory of Aquatic Ecology and Aquaculture of Tianjin, College of Fisheries, Tianjin Agricultural University, Tianjin, People's Republic of China.
Understanding the developmental sequence characteristics of the vertebral and appendicular skeletons of the larvae and juveniles of Larimichthys crocea (Naozhou population) can provide theoretical basis for seedling cultivation, environmental adaptation, and taxonomic identification. The cartilage-bone double staining method was used to stain, observe, and analyse the vertebrae, pectoral fins, anal fins, caudal fins, and dorsal fins of the larvae and juveniles of L. crocea (0-30 days post-hatching [DPH]).
View Article and Find Full Text PDFCureus
December 2024
Trauma and Orthopaedics, Barts Health NHS Trust, London, GBR.
Background Scapular fractures, an uncommon injury that can be brought on by a high-energy mechanism because of its proximity to the pectoral and shoulder muscles, are frequently linked to fatal injuries. This study aimed to compare surgical versus conservative treatment of scapular fractures and the results of treated patients. Methods The traumatic scapular fracture patients in this cross-sectional study (n = 391) were treated at a major trauma centre (level 1) in the United Kingdom between 2012 and 2018.
View Article and Find Full Text PDFZookeys
December 2024
The Kagoshima University Museum, 1-21-30 Korimoto, Kagoshima 890-0065, Japan The Kagoshima University Museum Korimoto Japan.
Zookeys
November 2024
Department of Ichthyology, California Academy of Sciences, San Francisco, CA 94118 USA.
A new species of (Teleostei, Pomacentridae) is described from four specimens collected between 95 and 110 m depth in mesophotic coral ecosystems in the Maldives, Indian Ocean. can be distinguished from all of its congeners by the following combination of characters: dorsal-fin rays XIII, 12-13; anal-fin rays II,11-12; pectoral-fin rays 17-18; tubed lateral-line scales 17; gill rakers 7+17-18 = 24-25; pearly white body with a large black marking covering the anterior two-thirds of the anal fin. The closest DNA barcode sequence (5.
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