( = Rotifera).
(Lat. rugosus, wrinkled). An order of Corals.
(Lat. the throat). The first cavity of the complex stomach of Ruminants ; often called the " paunch."
(Lat. ruminor, I chew the cud). The group of Hoofed Quadrupeds (Ungulata) which "ruminate" or chew the cud.
(=Stone-canal). The tube by which water is conveyed from the exterior to the ambulacral system of the Echinodermata.
(Gr. sarx; and eidos, form). The separate amoebiform particles which in the aggregate make up the " flesh " of a Sponge.
(Gr. saura, a lizard). Any lizard-like Reptile is often spoken of as a called by Huxley Plesiosauria, from the typical genus Plesiosaurus.
(Gr. saura; oura, tail). The extinct order of Birds comprising only the Archaeopteryx.
(Lat. scando, I climb). The order of the Climbing Birds (Parrots, Woodpeckers, &c).
(Lat. for shoulder-blade). The shoulder-blade of the pectoral arch of Vertebrates ; in a restricted sense, the row of plates in the cup of Crinoids, which give origin to the arms, and are usually called the " axillary radials."
(Gr. skleros, hard; and enchuma, tissue). The calcareous tissue of which a coral is composed.
(Gr. skleros). The calcareous spicules which are scattered in the soft tissues of certain Actinozoa.
(Gr. skleros, hard ; basis, pedestal). Applied to the coral which is produced by the coenosarc in certain Actinozoa (e.g., Red Coral), and which forms a solid axis which is invested by the soft parts of the animal.
"Saurian ;" but the term is sometimes restricted to the Crocodiles alone, or to the Crocodiles and Lacertilians.
(Gr. saura; batrachos, frog). Sometimes applied to the order of the tailed Amphibians (Urodela).
(Gr. saura ; and opsis, appearance). The name given by Huxley to the two classes of the Birds and Reptiles collectively.
(Gr. saura; pterux, wing). An extinct order of Reptiles.
It is called "foot-secretion" by Mr Dana.