Life history of the scavenger water beetle hydrous (hydrophilus) triangularis, and its economic relation to fish breeding.
Series: U. S. Bureau of fisheries. Doc. 942
Publisher: G.P.O.
Published: 1923
Place of publication: Washington
Language: eng
Number of pages: 38
Subjects: Water beetles.
Notes: From Bulletin of U.S. Bureau of Fisheries, Vol. 39, 1923-24.