@inbook {5372,
	title = {On Haplodiscus piger.},
	booktitle = {Report 57th Meeting British Association for the Adv. of Sc. held at Manchester 1887.},
	year = {1887},
	month = {1887},
	pages = { - 740},
	publisher = {London},
	organization = {London},
	keywords = {Haplodiscus orbicularis, Haplodiscus piger, Haplodiscus ussowi},
	author = {Weldon,WFR}
}
@article {5373,
	title = {Beitrage zur Anatomie des Haplodiscus.},
	journal = {Bull Acad Imp Sci St. Petersbourg},
	year = {1907},
	month = {1907},
	pages = {819 - 844},
	keywords = {Haplodiscus, Haplodiscus piger, Haplodiscus ussowi, Haplodiscus weldoni},
	author = {Salensky,W}
}
@article {5181,
	title = {Haplodiscus piger, a new pelagic organism from the Bahamas.},
	journal = {Q J Microsc Sci New Ser},
	volume = {29},
	year = {1889},
	month = {1889},
	pages = {1 - 8},
	keywords = {Haplodiscus, Haplodiscus orbicularis, Haplodiscus piger, Haplodiscus ussowi, LOCATION},
	author = {Weldon,WFR}
}
@article {5182,
	title = {Haplodiscus ussowii, eine neue Acoele aus dem Golfe von Neapel.},
	journal = {Mitth. Zool Stat. Neapel},
	volume = {12},
	year = {1896},
	month = {1896},
	pages = {353 - 380},
	keywords = {Haplodiscus piger, Haplodiscus ussowi, LOCATION},
	author = {Sabussow,H}
}
@book {5183,
	title = {A proposito dell{\textquoteright} Haplodiscus Ussowii Sabussow.},
	year = {1899},
	month = {1899},
	pages = { - 27-38 pp, tab 2.},
	publisher = {Atti Soc. Natural. Mat. Modena. Ser 4.  Tom. 1.  Anno 32. 1899 (1900)},
	organization = {Atti Soc. Natural. Mat. Modena. Ser 4.  Tom. 1.  Anno 32. 1899 (1900)},
	address = {Modena},
	keywords = {Haplodiscus piger, Haplodiscus ussowi, LOCATION},
	author = {Monticelli,FS}
}
@article {5180,
	title = {Haplodiscus bocki spec. nov., eine neue pelagische Turbellarie der Ordnung Acoela von der Molukken-See mit einer Diskussion der Gattung.},
	journal = {Ark Zool},
	volume = {23},
	year = {1970},
	month = {1970},
	pages = {255 - 266},
	keywords = {Haplodiscus, Haplodiscus acuminatus, Haplodiscus bocki, Haplodiscus obtusus, Haplodiscus orbicularis, Haplodiscus ovatus, Haplodiscus piger, Haplodiscus ussowi, Haplodiscus weldoni, LOCATION},
	author = {D{\"o}rjes,J}
}
