I thank Kimiaki Ito (Marine Station), Satoru N. Chiba and Eri Katayama (NSMT), Yoji Okata (underwater photographer), Tomohiro Yoshida (KAUM), Hiroyuki Doi and Takayuki Sonoyama (Shimonoseki Aquarium) for collecting the type specimens of Torquigener albomaculosus. Yoji Okata provided excellent underwater photographs of T. albomaculosus and a spawning nest of this species. Photographs of the holotype and paratype were taken by Satoru N. Chiba and Eri Katayama. Radiographs were taken by Shinpei Ohashi (NSMT). Eri Katayama and Nozomi Kurihara (NSMT) produced three-dimensional images of internal characters of T. albomaculosus by using X-ray CT scanning equipment. Masanori Nakae helped in drawing the schematic illustration of the lateral line system of T. albomaculosus. My thanks also go to Akira Ida (NHK: Japan Broadcasting Corporation) for providing an opportunity to observe the reproductive behavior of T. albomaculosus in July 2012. Edward O. Murdy kindly reviewed the manuscript. This study was partially supported by Grant-in-Aids for Scientific Researches, A (19208019) and B (24370041) from the Japan Society for the Promotion of Science; Grant-in-Aid for Scientific Research on Innovative Areas of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), 24120001; Health Labour Sciences Research Grant (FY2013-2014) of the Ministry of Health, Labour and Welfare, Japan; and the “Biological Properties of Biodiversity Hotspots in Japan” Project of the National Museum of Nature and Science.