Shell morphology and color pattern of Nipponacmea gloriosa and four species of Clade A A–C N. gloriosa, RM31869, Ibusuki, Kagoshima (41) D N. gloriosa, RM31860, Tateyama, Chiba (13) E N. gloriosa, RM31862, Manazuru, Kanagawa (14) F–H N. fuscoviridis, RM31858, Kimotsuki, Kagoshima (42) I N. fuscoviridis, RM31846, Nikaho, Akita (10) J N. fuscoviridis, RM31859, Kimotsuki, Kagoshima (42) K–M N. boninensis, RM31817, Chichijima Is., Ogasawara (43) N N. boninensis, RM31815, Chichijima Is., Ogasawara (43) O N. boninensis, RM31816, Chichijima Is., Ogasawara (43) P–R N. schrenckii, RM31906, Kazamaura, Aomori (6) S N. schrenckii, RM31908, Kazamaura, Aomori (6) T N. schrenckii, RM31916, Nagatamachi, Nagasaki (35) U–W N. concinna, RM31820, Ofunato, Iwate (11) X N. concinna, RM31824, Mihamacho, Wakayama (21) Y N. concinna, RM31828, Suo-Oshima, Yamaguchi (30). Scale bars: 5 mm.

 
 
  Part of: Teruya S, Setiamarga DHE, Nakano T, Sasaki T (2022) Molecular phylogeny of Nipponacmea (Patellogastropoda, Lottiidae) from Japan: a re-evaluation of species taxonomy and morphological diagnosis. ZooKeys 1087: 163-198. https://doi.org/10.3897/zookeys.1087.78193