Defn: One versed in crustaceology; a crustalogist.

CRUSTACEOLOGY
Crus*ta`ce*ol"o*gy (-j), n. Etym: [Crustacea + -logy.]

Defn: That branch of Zoölogy which treats of the Crustacea; malacostracology; carcinology.

CRUSTACEOUS Crus*ta"ceous (krs-t"shs; 97), a. Etym: [NL. crustaceous. See crustacea.]

1. Pertaining to, or of the nature of, crust or shell; having a crustlike shell.

2. (Zoöl.)

Defn: Belonging to the Crustacea; crustacean.

CRUSTACEOUSNESS
Crus*ta"ceous*ness, n.

Defn: The state or quality of being crustaceous or having a crustlike shell.

CRUSTAL
Crust"al (krst"al), a.