Thrissina encrasicholoides (Actinopterygii: Clupeiformes: Engraulidae): first record from Taiwan and northernmost record of the species

Abstract

Hata H., Koeda K. 2020. Thrissina encrasicholoides (Actinopterygii: Clupeiformes: Engraulidae): first record from Taiwan and northernmost record of the species. Acta Ichthyol. Piscat. 50 (1): 107-111.Abstract. Although four species of the engraulid genus Thrissina (often regarded as Thryssa) have previously been recorded from waters around Taiwan, Thrissina encrasicholoides (Bleeker, 1852), known from the eastern Indian and western Pacific Oceans (north to the Philippines), has not been to date. However, two specimens (100.1 and 100.6 mm standard length) of T. encrasicholoides were collected from south-western Taiwan. Their morphology and fresh coloration are described, the former being largely consistent with previous descriptions of the species: short maxilla, its posterior tip blunt, slightly beyond anterior margin of preopercle; 14 or 17 keeled scutes; and one scute weakly developed and lacking a ventral edge projection, immediately behind the isthmus.The specimens represent the first record of the species from Taiwanese waters and the northernmost record of the species.

Resurrection and redescriptions of nominal species previously regarded as synonyms of Thrissina mystax (Bloch and Schneider, 1801) (Teleostei: Clupeiformes: Engraulidae)

“…Although the genus was reviewed by Whitehead et al (1988), who recognized 24 valid species, taxonomic research of the genus has progressed in recent years by the authors' research group. Because the recent studies described many new species and reassessed taxonomic status of various nominal species related to the genus, there are currently 35 valid species in this genus (Gill et al, 2018; Hata, 2020, 2022; Hata et al, 2020, 2021, 2022a; Hata & Koeda, 2020; Hata, Lavoué, Bogorodsky, et al, 2023; Hata, Lavoué, Chunthanawong, & Motomura, 2023; Hata, Mandagi, & Masengi, 2023; Hata & Motomura, 2019; Hata & Nakae, 2019; Roberts, 1978; Whitehead et al, 1988; Wongratana, 1983, 1987; Wongratana et al, 1999).…”

A New Species of Thrissina from the Andaman Sea and Re-assessment of the Taxonomic Status of Thrissina cuvierii (Swainson, 1839) and Thrissina malabarica (Bloch, 1795) (Teleostei: Clupeiformes: Engraulidae: Coiliinae)

“…Thrissina , a widely distributed Indo-West Pacific genus, comprises 34 valid species (Roberts, 1978; Wongratana, 1983, 1987; Whitehead et al, 1988; Wongratana et al, 1999; Gill et al, 2018; Hata and Motomura, 2019; Hata and Nakae, 2019; Hata, 2020, 2022; Hata and Koeda, 2020, 2021; Hata et al, 2020, 2021, 2022, 2023). Among them, an Indian Ocean species with a distinctly deep body has been treated as Thrissina malabarica (Bloch, 1795; e.g., Nair, 1953; Misra, 1976; Whitehead et al, 1988; Psomadakis et al, 2015).…”