Monophyly and re-definition of the Indo-Pacific scorpionfish genus Parascorpaena Bleeker 1876 (Scorpaenidae)

A review of the validity of morphological traits defining the scorpionfish genus Parascorpaena Bleeker 1876 resulted in the re-identification of Parascorpaena bandanensis (Bleeker 1851) as Sebastapistes strongia (Cuvier 1829), reducing the number of valid species of Parascorpaena from nine to eight....

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Bibliographic Details
Published inIchthyological research Vol. 72; no. 2; pp. 240 - 251
Main Authors Cabebe-Barnuevo, Roxanne, Mochizuki, Kentaro, Motomura, Hiroyuki
Format Journal Article
LanguageEnglish
Published Tokyo Springer Nature B.V 01.04.2025
Subjects
Animal morphology
Cytochrome oxidase I
cytochrome-c oxidase
Cytochromes
Fins
genes
genus
Jaw
Lateral line
Mandible
Marine fishes
Maxilla
mitochondria
monophyly
Morphology
paraphyly
Parascorpaena
Phylogenetics
RAG1 protein
Recombination
RNA
rRNA 16S
Scorpaenidae
species
Spine
Spines
Teeth
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Summary:A review of the validity of morphological traits defining the scorpionfish genus Parascorpaena Bleeker 1876 resulted in the re-identification of Parascorpaena bandanensis (Bleeker 1851) as Sebastapistes strongia (Cuvier 1829), reducing the number of valid species of Parascorpaena from nine to eight. A modified definition of Parascorpaena , based on morphological characters observed among the valid species, includes: usually complete lateral line, continuing onto the caudal-fin base; second to fifth or sixth pectoral-fin rays branched; usually two or three suborbital spines; body covered with cycloid scales; lower jaw slightly shorter than upper jaw; palatine teeth present; villiform teeth on upper jaw; distinct posterior lacrimal ridge instead of a developed spine; simple anterior and posterior lacrimal spines without additional spinous points; and a posterior lacrimal spine (PLS) oriented strongly forward, with smaller specimens exhibiting ventral orientation with anterior curvature, and those smaller than 20 mm standard length with the PLS oriented postero-ventrally. A concatenated phylogenetic tree constructed using mitochondrial cytochrome oxidase I ( COI ), 16S ribosomal ribonucleic acid (16S rRNA ), and recombination activating gene 1 ( RAG1 ) markers, demonstrated the monophyletic nature of Parascorpaena . In addition, molecular analysis placed Parascorpaena closer to a group represented by Sebastapistes mauritiana (Cuvier 1829) within the paraphyletic Sebastapistes Gill in Streets 1877.
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ISSN:1341-8998
1616-3915
DOI:10.1007/s10228-024-00991-z