Template:Ijima, 1904

• Ijima, I. 1904. Studies on the Hexactinellida. Contribution IV. (Rossellidae). The Journal of the College of Sciences, Imperial University of Tokyo 18(7): 1–307, pls. I–XXIII. BHL  
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Nomenclatural acts

• Date of publication: 1904

New names (6)

• Hyalascus similis [p. 96]
• Staurocalyptus tubulosus [p. 175]
• Staurocalyptus affinis [p. 180]
• Staurocalyptus entacanthus [p. 191]
• Rhabdocalyptus unguiculatus [p. 268]
• Bolosoma [p. 305] (nomen novum pro Placosoma Ijima, 1903)