Euthecosomata.
Subtitle: A group with remarkable developmental stages. (Gastropoda, Pteropoda)
By: By S. van der Spoel. [Illus. by S. van der Spoel]
Publisher: J. Noorduijn
Published: 1967
Place of publication: Gorinchem
Language: eng
Number of pages: 380
Subjects: Thecosomata.
Notes: Bibliography: p. 220-246.
Summary in Dutch.
Continued by the author's Pseudothecosomata, ymnosomata and Heteropoda. (Gastropoda)