2024/01/01 by Xing-Xiao Wang, Shuqian Zhang · 1 voice
Environmental Science · Earth and Planetary Sciences · #Aquatic Invertebrate Ecology and Behavior #Marine Biology and Ecology Research #Marine Bivalve and Aquaculture Studies
paper · pdf · doi:10.61733/jconch/4579
openalex publication_date 2024/01/01 · openalex created_date 2026/07/30 · openalex updated_date 2026/07/31
Phalium flammiferum breviculum Tsi & Ma, 1980 has long been regarded as a subspecies of Phalium flammiferum (Röding, 1798) or sometimes treated as its synonym. In this study, integrative morphological and molecular phylogenetic analyses of P. flammiferum breviculum Tsi & Ma, 1980 and P. flammiferum flammiferum (Röding, 1798) from Chinese waters demonstrate that they represent two distinct species. Morphologically, the two species differ primarily in discrete characters of shell sculpture, particularly in the number of spiral cords and varices. Geometric morphometric analyses and mapping of landmark configurations onto the phylogeny indicate that variation in shell outline is largely continuous and only weakly associated with phylogenetic relationships. Phylogenetic analyses reconstructed by Bayesian inference using concatenated mitochondrial (COI) and nuclear (28S rRNA) genes and species delimitation analysis (ASAP) support the separation of the two species. Herein, we formally elevate Phalium flammiferum breviculum Tsi & Ma, 1980 to species rank.