Crustacea.

Anatifa, metamorphosis of, and relation to Crustacea, J. D. Dana, xlv, 335.

Argulus catostomi, J. D. Dana and E. C. Herrick, xxx, 388; xxxi, 297.f

—, new species, T. W. Harris, xxxvi, 393.

Artemia salina, xli, 193.

*Astacus, fossil, xvii, 287.

Balanus peregrinus, xxiv, 131.f

Caligus americanus, description of, J. D. Dana and C. Pickering, xxxiv, 225.f

*Cancer, fossil, xvii, 287.

Entomostraca in chalk, xxx, 382.