Chimaera willwatchi is a bathydemersal chimaera found in southwest Indian Ocean Ridge, northern Madagascar Rift, and Walter Shoals.
Chimaera willwatchi has several general characteristics, such as blocky head, square snout, large body, well-defined suborbital ridges, slight iridescent sheen, and brown purple-colored body. The maximum total length of this species is around 83.4 cm for the male specimens and 97.1 cm for female specimens.
This chimaera possibly inhabits the depths of 89 - 1365 m.