Note 37 — LETTER XXVIII.
Reading edition
Mr. MacLeay observes with regard to the Tardigrade, described by Spallanzani and Dutrochet, that "it proves that an animal may exist without antennæ or distinct annular segments to the body, but having two eyes and six articulate legs." (Hor. Entomolog. 350—.) Many Acari prove the same thing. De Geer, vii. t. vii. f. 14.