Concepedia

O. A. Johannsen

OA

Statistics

Publications

8

Citations

195

H-Index

8

Active since

1922

Affiliations

Cornell University(Current)

O. A. Johannsen is an author at Cornell University specializing in life sciences, zoology, and biology.

Publications per year

1922–1951

8

Publications

8

Eye structure in normal and eye‐mutant Drosophilas

O. A. Johannsen · Journal of Morphology · 1924 · 44 citations

, , +14

Some phases in the embryonic development of Diacrisia virginica fabr. (Lepidoptera)

O. A. Johannsen · Journal of Morphology · 1929 · 32 citations

, , +9

Aquatic Diptera. Part II. Orthorrhapha-Brachycera and Cyclorrhapha.

O. A. Johannsen · 1935 · 32 citations

, , +11

A Generic Synopsis Ojf the Ceratopogonidae (Heleidae) of the Americas, a Bibliography, and a List of the North American Species

O. A. Johannsen · Annals of the Entomological Society of America · 1943 · 31 citations

, , +6

Stratiomyiid Larvæ and Puparia of the North Eastern States

O. A. Johannsen · Biodiversity Heritage Library (Smithsonian Institution) · 1922 · 19 citations · Full text

, , +2

1–5 of 8