@article {1776,
	title = {Ascidians of New Zealand.  Part VI  Ascidians of the Hauraki Gulf.  Part II},
	journal = {Transactions of the Royal Society of New Zealand},
	volume = {79},
	year = {1951},
	pages = {104-113},
	author = {Brewin, B.I.}
}
@article {1721,
	title = {Contributions to Japanese ascidian fauna IV. Notes on some ascidians collected in Osaka Bay},
	journal = {Publications of the Seto Marine Biological Laboratory},
	volume = {1},
	year = {1951},
	pages = {11-24},
	author = {Tokioka, T.}
}
@article {299,
	title = {Bostrichobranchus digonas, a new molgulid ascidian from Florida},
	journal = {Journal of the Washington Academy of Sciences},
	volume = {41},
	year = {1951},
	pages = {302-307},
	author = {Abbott, D.P.}
}
@article {383,
	title = {The fauna of Akkeshi Bay XVIII},
	journal = {Publications from the Akkeshi Marine Biological Station},
	volume = {1},
	year = {1951},
	pages = {1-22},
	author = {Tokioka, T.}
}
@article {267,
	title = {Nouvelle contribution a l{\textquoteright}etude des ascidies de la cote occidentale d{\textquoteright}Afrique},
	journal = {Bulletin. Institut Francais d{\textquoteright}Afrique Noire},
	volume = {13},
	year = {1951},
	pages = {1051-1071},
	author = {Peres, J.M.}
}
