Beiträge zur Kenntniss der Stacheln von Trygon und Acanthias
By: Paul Ritter
Publisher: M. Jedeck
Published: 1900
Place of publication: Berlin
Language: ger
Number of pages: 56
Subjects: Rays (Fishes); Sharks
Notes: Thesis (doctoral)--Grossherzogliche Landes-Universität Rostock, 1900?

Quellen-angabe: 3 p.