The Myidae (Mollusca, Bivalvia) from Chinese waters with description of a new species Author Zhang, Jun-Long Author Xu, Feng-Shan Author Liu, Rui-Yu text Zootaxa 2012 3383 39 60 journal article 10.5281/zenodo.281734 43dab820-4818-4933-9e7b-c15187db9fb6 1175-5326 281734 Tugonia (Distugonia) decurtata ( A. Adams, 1851 ) Figure 6 L Sphenia decurtata A. Adams, 1851 : 88 –89. Cryptomy decurtata ( A. Adams, 1851 ) — A. Adams, 1868 : 366 ; Beets, 1949 : 273 , 277; Beets, 1950 : 17 . Mya decurtata ( A. Adams, 1851 ) — Sowerby, 1875 : sp. 11, pl. III, fig. 11. Distugonia decurvata ( A. Adams, 1851 ) — Habe, 1951 : 75 , pl. 12, figs. 15 & 16; Habe, 1961 : 140 , pl. 63, fig. 11; Habe, 1968 : 205 , pl. 63, fig. 11; Habe, 1977 : 279 , pl. 58, figs. 7 & 8; Wu, 1980 : 189 ; Xu, 1997 : 230 ; Xu, 2008: 590; Okutani, 2000 : 1021 , pl. 508, fig. 4 [spelling error]. Distugonia decurtata ( A. Adams, 1851 ) — Bernard et al. 1993 : 107 . Tugonella decurtata ( A. Adams, 1851 ) — Huber, 2010 : 461 (text-fig.). Distribution and habitat. Miocene to Recent. Taiwan , China ; Japan ; Philippines . Intertidal mud bottom to 50 m . Type locality. Catanuan, Province of Tayabas, Island of Luzon, in sand at low water depths. Diagnosis. Length to 30 mm ; shell slightly inflated, elongate-oval; umbo prominent, situated subcentral; posterior area demarcated by ridge; chondrophore projecting in the left valve, right valve resilifer compressed; pallial sinus shallow, not reaching further anterior than posterior adductor scar; pallial line thin. Remarks. This species had been incorrectly spelled as decurvata by some Japanese and Chinese authors.