@article{oai:nagoya.repo.nii.ac.jp:02006096,
 author = {西川, 輝昭 and NISHIKAWA, Teruaki and 並河, 洋 and NAMIKAWA, Hiroshi},
 issue = {1},
 journal = {南紀生物},
 month = {Jun},
 note = {The lancelet( Cephalochordata) material formerly held in the Biological Laboratory of the Imperial Palace of Japan( and currently deposited in the Showa Memorial Institute,National Museum of Nature and Science) includes 10 individuals( in 7 jars) of Branchiostoma japonicum( WILLEY,1897),distinguishable from the similar Asian species B.belcheri( GRAY, 1847) primarily by the lower number of preanal fin-chambers in the former( ranging from 43 to 60 in the present material, i.e.within the known range for B.japonicum).Four individuals, separately contained in 4 jars( NSMT-Pc R:338,R:339, R:340,and R:342),were collected off Hayama( NE Sagami Bay),Kanagawa Prefecture,Japan,by a Biological Laboratory party between 1930 and 1953.That location is now recognized as a new locality for the species in the bay,north of the previously recognized northernmost locality( Misaki, SE Sagami Bay),the R:340 specimen,collected on 18 May, 1930,being the oldest available lancelet from the bay.The remaining 3 jars( NSMT-Pc R:296,R:341,and R:899) each contained 2 individuals,having been collected off Gamagori, Mikawa Bay,Aichi Prefecture,Japan;the four specimens in jars R:341 and R:899 had been collected from Mikawa-oshima Islet on 11 May,1941 by Mr.Kinroku TAKEUCHI,who had first discovered the intertidal lancelet habitat in 1934. The Mikawa-oshima habitat was subsequently designated by the Japanese Government as a natural monument in March, 1941,the four specimens collected in May 1941 being the oldest available specimens from Mikawa Bay.},
 pages = {32--35},
 title = {皇居内生物学御研究所旧蔵ナメクジウオ類標本},
 volume = {64},
 year = {2022}
}