@article {pdf,
	title = {Die Turbellarien des Eulitorals der Kieler Bucht},
	journal = {Zoologische Jahrb{\"u}cher: Abteilung f{\"u}r Systematik, {\"O}kologie und Geographie der Tiere~},
	volume = {80},
	year = {1951},
	note = {2866},
	pages = {277-378},
	type = {article},
	abstract = {Describes:
Macrostomum pusillum n. sp.
Macrostomum rubrocinctum n. sp.
Mentions:
Macrostomum appendiculatum
Macrostomum curvituba
Macrostomum balticum
Dolichomacrostomum uniporum
Paromalostomum dubium
Microstomum sp.},
	keywords = {Turbellaria},
	author = {Ax, Peter}
}
@article {pdf,
	title = {Die Bedeutung der interstitiellen Sandfauna fuer allgemeine Probleme der Systematik, Oekologie und Biologie},
	journal = {Verhandlungen des Institutes f{\"u}r Meeresforschung Bremerhaven},
	volume = {Sonderband},
	year = {1966},
	note = {2653},
	pages = {15-65},
	type = {article},
	abstract = {Describes:
Psammomacrostomum equicaudatum n. gen. n. sp.},
	keywords = {Turbellaria},
	author = {Ax, Peter}
}
@article {pdf,
	title = {Neue interstitielle Macrostomida (Turbellaria) der Gattungen Acanthomacrostomum und Haplopharynx},
	journal = {Mikrofauna des Meeresbodens},
	volume = {8},
	year = {1971},
	note = {2637},
	pages = {1-14},
	type = {article},
	abstract = {Describes:
Acanthomacrostomum gerlachi n. sp.
Haplopharynx quadristimulus n. sp.},
	keywords = {Turbellaria},
	author = {Ax, Peter}
}
@article {pdf,
	title = {Anatomie von Psammomacrostomum equicaudum Ax 1966 (Turbellaria, Macrostomida)},
	journal = {Mikrofauna des Meeresbodens},
	volume = {48},
	year = {1974},
	note = {2634},
	pages = {1-12},
	type = {article},
	abstract = {Mentions:
Psammomacrostomum equicaudatum},
	keywords = {Turbellaria},
	author = {Ax, Peter and Faubel, Anno}
}
