RAT n.
One of the several species of small rodents of the genus Mus and allied genera, larger than mice, that infest houses, stores, and ships, especially the Norway, or brown, rat (M. Alexandrinus). These were introduced into Anerica from the Old World.
RAZOR n.
ean goat-sucker. -- Razor shell (Zoöl.), any marine bivalve shell belonging to Solen and allied genera, especially Solen, or Ensatella, ensis, and Americana, which have a long, narrow, somewhat curved shell, resembling a razor handle in shape. Called also rasor clam, razor fish, knife handle. -- Razor stone. Same as…
REDSTART n.
A small, handsome European singing bird (Ruticilla phoenicurus), allied to the nightingale; -- called also redtail, brantail, fireflirt, firetail. The black redstart is P.tithys. The name is also applied to several other species of Ruticilla amnd allied genera, native of India.
RHINOCEROS n.
Any pachyderm belonging to the genera Rhinoceros, Atelodus, and several allied genera of the family Rhinocerotidæ, of which several living, and many extinct, species are known. They are large and powerful, and usually have either one or two stout conical median horns on the snout.
RIVER n.
low; abundance; as, rivers of blood; rivers of oil. River chub (Zoöl.), the hornyhead and allied species of fresh-water fishes. -- River crab (Zoöl.), any species of fresh-water crabs of the genus Thelphusa, as T. depressa of Southern Europe. -- River dragon, a crocodile; -- applied by Milton to the king of Egypt. -…
ROCK n.
.), the harbor seal. See Seal. -- Rock shell (Zoöl.), any species of Murex, Purpura, and allied genera. -- Rock snake (Zoöl.), any one of several large pythons; as, the royal rock snake (Python regia) of Africa, and the rock snake of India (P. molurus). The Australian rock snakes mostly belong to the allied genus Mor…