Morphological Description of the Newly Discovered Limpet Species Lottia peitaihoensis(Lottiidae: Patellogastropoda) from Korea
Eggy Triana Putri, Jina Park, Joong-Ki Park*
Division of EcoSciene, Ewha Womans University, Seoul 03760, Korea
The family Lottiidae Gray, 1840, belonging to the subclass Patellogastropoda (commonly known as “true limpets”), comprises approximately 200 species worldwide. In Korean waters, 20 species of Lottiidae have been sparsely recorded to date, including eight species from the genus Lottia Gray, 1833. Lottia species typically exhibit significant ecophenotypic shell variations, which have led to various taxonomic complications, including the proliferation of synonyms due to species misidentification. In this study, we provide detailed information of the shell and radula morphologies using scanning electron microscopy, coupled with mtDNA cox1 sequences as DNA barcode references for L. peitaihoensis (Grabau & S. G. King, 1928), newly discovered in Korean waters. Morphologically, L. peitaihoensis can be distinguished from other congeneric species by its shell, characterized by having numerous fine radial riblets with even finer riblets intercalated among them. The radula of this species is characterized by short, pointed first lateral teeth (innermost-lateral teeth), long, slightly rounded second lateral teeth (outermost-lateral teeth), and long, broad, beak-like third lateral teeth (outermost-lateral teeth). In addition, we reconstructed a phylogenetic tree using 25 mtDNA cox1 haplotype sequences from five Lottia species deposited in GenBank, including two newly obtained sequences from Korean L. peitaihoensis samples to confirm the species. The detailed morphological data, coupled with molecular information presented in this study, provide valuable information for the accurate delineation and species identification of closely related species within the genus Lottia.
Patellogastropoda, true limpets, Lottia, radula, SEM, mtDNA cox1, Korea