malacostracology

from The Collaborative International Dictionary of English v.0.48

Malacostracology \Mal`a*cos`tra*col"o*gy\, n. [Malacostracan +
   -logy.]
   That branch of Zoological science which relates to the
   crustaceans; -- called also {carcinology}.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Carcinology \Car`ci*nol"o*gy\ (k[aum]r`s[i^]*n[o^]l"[-o]*j[y^]),
   n. [Gr. karki`nos a crab + -logy.] (Zool.)
   The department of Zoology which treats of the Crustacea
   (lobsters, crabs, etc.); -- called also {malacostracology}
   and {crustaceology}.
   [1913 Webster]

[email protected]