Gasterosteus microcephalus

Gasterosteus microcephalus Girard, 1854

First described in: Girard, C. F. (1854). Descriptions of new fishes, collected by Dr. A. L. Heermann, naturalist attached to the survey of the Pacific railroad route, under Lieut. R. S. Williamson, U. S. A. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> v. 7: 129-140.

This species is catalogued but little written about: there is no encyclopaedia article for it yet. What the world knows is in its records below and in the literature linked under “In the stacks”.