testaceography

from The Collaborative International Dictionary of English v.0.48

Testaceography \Tes*ta`ce*og"ra*phy\, n. [Testacea + -graphy:
   cf. F. testac['e]ographie.]
   The science which treats of testaceans, or shellfish; the
   description of shellfish. [R.]
   [1913 Webster]