a. and sb. [f. mod.L. Thalassina + -IAN.] a. adj. Of or pertaining to the Thalassinidæ, a family of long-tailed decapod crustaceans, the scorpion-lobsters. b. sb. A crustacean of this family. So Thalassinoid a.
1842. Penny Cycl., XXIV. 274/2. Mr. Milne Edwards auranges the family of Thalassinians, or Burrowing Macrura, between the Scyllarians and the Astacians. Ibid. Cryptobranchids,… all the Thalassinians which are without respiratory appendages suspended under the abdomen.
