What's the difference between silverfish and thysanuran?

Silverfish

Definition:

• (n.) The tarpum.
• (n.) A white variety of the goldfish.

Example Sentences:

• (1) Of a celebrity, to claim any member of the public uttering even the mildest criticism is nothing but an attention-seeking "troll" whose pitiful so-called existence is several rungs below that of the lowliest silverfish.
• (2) Sera obtained from subjects diagnosed on the basis of case history and skin tests as having inhalant allergies to insects, were tested for the presence of IgE antibodies to antigens from the house fly Musca domestica, a blowfly Calliphora stygia, the common clothes moth Tineola bisselliella, warehouse moth Ephestia cautella, cockroach Blattella germanica, carpet beetle Anthrenus verbasci and silverfish Ctenolepisma longicaudata.

Thysanuran

Definition:

• (n.) One of the Thysanura. Also used adjectively.

Example Sentences:

• (1) Aspects of the structure and function of the abdominal cerci and caudal filament sensory systems, and associated giant interneurons of the thysanuran insect Thermobia domestica, the firebrat, extend comparative studies of a widespread predator evasion system.
• (2) All elements of the cercal system, which is well known from diverse orthopteroid insects, are present in the primitively wingless thysanuran.