William Harper Pease

William Harper Pease (1824–1871) was a 19th-century American conchologist, shell collector and malacologist. He described many species of Indo-Pacific marine mollusks from the Cuming collection.

He moved in 1849 to Honolulu, from where he continued his research

One of the genera he described and named was the sea slug genus: Philinopsis Pease, 1860

Several species were named in his honor : Favartia peasei (Tryon, 1880), Conus peasei J. Brazier, 1877, Amygdalum peasei W. Newcomb, 1870 and Hypselodoris peasei (Bergh, 1880)