Hochschulschrift:
Thesis (doctoral)--Faculté des sciences de Paris, 1892
Anmerkungen:
"Série A, no 189, no d'ordre 776."
Illustrative plates also published in Annales des sciences naturelles, Zoologie, 7th series, vol. 14
Also issued as the author's thesis (doctoral)--Faculté des sciences de Paris, 1892
Includes bibliographical references (p. [383]-386)