Gobiodon spadix sp. nov. is described on the basis of 37 specimens from Kyushu, and the Osumi and Tokara Islands, southern Japan. The new species is characterized by the following combination of characters: dorsal-fin rays VI-I, 9–11 (modally 9); anal-fin rays I, 8 or 9 (8); pectoral-fin rays 19–21 (20); body depth at pelvic-fin origin 32.4–38.3% (mean 36.0%) of standard length; distance between first dorsal-fin origin to dorsal-most point of pectoral-fin base 50.4–64.8% (55.2%) of head length (HL); pectoral fin relatively long, its length 90.6–112.5% (100.8%) of HL; groove between isthmus and interopercle absent; body uniformly reddish-brown; coloration of all fins darker than that of body; and five narrow vertical bluish stripes on lateral surface of head. The new species is currently known from southern Japan, Papua New Guinea, and northeastern Australia.

石斑鱼属 Spadix sp.十一月是根据来自九州、日本南部大隅群岛和吐噶喇群岛的 37 个标本进行描述的。该新种具有以下特征组合：背鳍条VI-I，9-11（模态9）；臀鳍条 I、8 或 9 (8)；胸鳍条 19–21 (20);腹鳍起点处的体深为标准长度的32.4-38.3%（平均36.0%）；第一背鳍起点到胸鳍基部最背点之间的距离 头长 (HL) 的 50.4–64.8% (55.2%)；胸鳍较长，其长度为HL的90.6-112.5%（100.8%）；峡部和间鳃盖之间的沟缺失；身体呈均匀的红棕色；所有鳍的颜色都比身体的颜色深；头部侧面有五个狭窄的垂直蓝色条纹。目前，这种新物种分布在日本南部、巴布亚新几内亚和澳大利亚东北部。