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Adapted for sucking; living by sucking; as, the humming birds are suctorial birds.

A group of suctorial Infusoria, which in the adult stage are stationary. See Suctoria.

A group of Entomostraca, with suctorial mouths, including species parasitic on fishes, as the carp lice (Argulus).

only two functional wings and two balancers, as the house fly, mosquito, etc. They have a suctorial proboscis, often including two pairs of sharp organs (mandibles and maxillæ) with which they pierce the skin of animals. They undergo a complete metamorphosis, their larvæ (called maggots) being usually without feet.…

A division of amphibians having suctorial disks on the toes, as the tree frogs.

An eel-like marine marsipobranch (Myxine glutinosa), allied to the lamprey. It has a suctorial mouth, with labial appendages, and a single pair of gill openings. It is the type of the order Hyperotpeta. Called also hagfish, borer, slime eel, sucker, and sleepmarken.

Any one of numerous species of small, wingless, suctorial, parasitic insects belonging to a tribe (Pediculina), now usually regarded as degraded Hemiptera. To this group belong of the lice of man and other mammals; as, the head louse of man (Pediculus capitis), the body louse (P. vestimenti), and the crab louse (Phthir…

Any one of numerous species of pulmonate arachnids of the order scorpiones, having a suctorial mouth, large claw-bearing palpi, and a caudal sting.

Suctorial. [R.]