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A division of pectinibranchiate gastropods, having the head prolonged into a snout which is not retractile.

The snout of a gastropod mollusk. See Illust. of Littorina.

foraminifer of the genus Rotalia, abundant in the chalk formation. See Illust. under Rhizopod.

Any one of numerous species of small, polished, brightcolored gastropods of the genus Rotella, native of tropical seas.

of large egg capsules, or oöthecæ, of any one of several species of American marine gastropods of the genus Fulgur. See Oötheca. Ruffle of a boot, the top turned down, and scalloped or plaited. Halliwell.

onsolation we may bring. Salve to thy sores. Milton. Salve bug (Zoöl.), a large, stout isopod crustacean (Æga psora), parasitic on the halibut and codfish, -- used by fishermen in the preparation of a salve. It becomes about two inches in length.

e as Sand saucer, below. -- Sand crab. (Zoöl.) (a) The lady crab. (b) A land crab, or ocypodian. -- Sand crack (Far.), a crack extending downward from the coronet, in the wall of a horse's hoof, which often causes lameness. -- Sand cricket (Zoöl.), any one of several species of large terrestrial crickets of the genu…

See Sapodila.

The sapodilla.

marmalade tree, the gutta-percha tree (Isonandra), and the India mahwa, as well as the sapodilla, or sapota, after which the order is named.

A minute yellowish body present in the interior of certain rhizopods.

Any one of numerous species of marine gastropods of the genus Scalaria, or family Scalaridæ, having elongated spiral turreted shells, with rounded whorls, usually crossed by ribs or varices. The color is generally white or pale. Called also ladder shell, and wentletrap. See Ptenoglossa, and Wentletrap.…

allies, which have two rows of scales, or elytra, along the back. See Illust. under Chætopoda.

Any fossil cephalopod shell of the genus Scaphites, belonging to the Ammonite family and having a chambered boat-shaped shell. Scaphites are found in the Cretaceous formation.

A thin leafike appendage (the exopodite) of the second maxilla of decapod crustaceans. It serves as a pumping organ to draw the water through the gill cavity.

A long-handled billhook. See Billhook. Scimiter pods (Bot.), the immense curved woody pods of a leguminous woody climbing plant (Entada scandens) growing in tropical India and America. They contain hard round flattish seeds two inches in diameter, which are made into boxes.

A genus of venomous myriapods including the centipeds. See Centiped.

nna (Bot.), a yellow-flowered leguminous shrub (Coronilla Emerus) having a slender joined pod, like a scorpion's tail. The leaves are said to yield a dye like indigo, and to be used sometimes to adulterate senna. -- Scorpion shell (Zoöl.), any shell of the genus Pteroceras. See Pteroceras. -- Scorpion spiders. (Zoöl.…

A leguminous plant (Ornithopus scorpides) of Southern Europe, having curved pods.

An amphipod crustacean; as, the skeleton screw (Caprella). See Sand screw, under Sand. Archimedes screw, Compound screw, Foot screw, etc. See under Archimedes, Compound, Foot, etc. -- A screw loose, something out of order, so that work is not done smoothly; as, there is a screw loose somewhere. H. Martineau. -- Endle…