804 



RIVOSE. When furrows do not run in a 

 parallel direction and are rather sinuate. 



ROUULENT. Covered like a plum with a 

 bloom which may be rubbed off. 



ROSACEOUS. A scent of roses. 



ROSTRATE. When the anterior part of an 

 insect's head is elongated and attenuated 

 into a cylindrical or many-sided rostrum 

 or beak. 



ROSTRUM (of a shell). The beak, or its ex- 

 tension where the canal is situated. 



ROTATORY. When a body or a part of it 

 turns wholly round, or describes a circle. 



ROTIFERA. The name of the class of in- 

 fusorial animals, characterized by the vi 

 bratile and apparently rotating ciliary 

 organs upon the head. 



ROTUND. Round, circular, spherical. 



ROTUND ATE. ROTUNDATEO. Blunted, or 

 turned at the edge ; terminating in the 

 segment of a circle. 



RUBEFACIENT. Making red. 



RUBESCENT. Growing or becoming red. 



RUBICUND. Inclining to redness. 



RUBINEOUS. The red splendour of the ruby. 



RUDIMENT. An imperfect organ, or one but 

 partially developed. 



RUDIMENTARY. Small ; imperfect ; unde- 

 veloped. 



RUKF. A tuft or collar of raised feathers 

 round the neck of certain birds. 



RUFESCENT. Tinged with red. 



RUFOUS. A pale red. Of a reddish or dull 

 copper colour. 



RUGGED. When a surface is rough, as in 

 certain insects, with spines and tubercles 

 intermixed. 



RUGOSE. Rugged ; wrinkled. Intricate with 

 approximating elevations and depressions 

 whose direction is indeterminate. 



RUMINANT. Chewing the cud : having the 

 property of chewing again what has once 

 been swallowed. The RUMINANTIA or ru- 

 minating animals are the cloven-hoofed 

 quadrupeds, as Oxen, Sheep, Deer. Goats, 

 Hares, and Squirrels. Rumination con- 

 sists in a power of laying aside the food 

 for a time, in a receptacle adapted for it, 

 and afterwards bringing it back into the 

 mouth and masticating it a second time. 



RUMINATE. To chew the cud. 



RUSSET. Of a reddish brown colour and 

 rough, like the skin of the apple called a 

 russet or ruszeting. 



RUTTING SEASON. A term used to denote 

 the time of the year when animals of the 

 cervine genus follow the natural instinct 

 to copulate. 



SABULOUS. Sandy ; gritty. 



SACCIFORM. Shaped like a sac or bag. 



SALACIOUS. Lustful ; having a strong pro- 

 pensity to venery. 



SALIENT. Moving by leaps, as frogs. 



SALINE. Partaking of the qualities of salt. 



SALIVA. The fluid which is secreted by the 

 salivary glands ; it serves to moisten the 

 mouth and tongue, and also to promote 

 digestion. 



SALIVARY. Secreting or conveying saliva ; 

 as, the salivary glands. 



SALTATORIOUS. W hen the ventral segments 

 or the anus [of an insect] are furnished with 



elastic processes which enable the animal 

 to leap. 



SALUBRIOUS. Healthful ; as a salubrious cli- 

 mate. 



SANATIVE. Having the power to heal or 

 cure. 



SANGUIFLUOUS. Flowing with blood. 



SANGUINEOUS. Of the colour of blood, or 

 resembling blood. 



SANGUIVOROUS. SANGUINIVOROUS. Eating 

 or subsisting on blood. 



SARCOPIJAGA. Flesh-eating animals. 



SARCOPHAGOUS. Pertaining to those ani- 

 mals which subsist l>y eating flesh ; feeding 

 on flesh. 



SAURIAN. The epithet by which reptiles be- 

 longing to the lizard tribe (iocerta) are 

 distinguished. 



SAUROID. An epithet used to distinguish a 

 group of fossilised fishes of the carbonife- 

 rous and secondary formations. 



SAXATILE. Living among rocks. 



SCABIOUS. Rough from the effects of the 

 scab or mange. 



SCABROUS. Rough and rugged; rough to 

 the touch from granules scarcely visible. 



SCALLOPED. Indented at the edges. 



SCAPULAR. Pertaining to the shoulders or 

 the shoulder-blades, scapula. 



SCAPULARIES. In ornithology, those feathers 

 which take their rise from the shoulders 

 of birds, and cover the sides of the back. 



SCARIFY. To cut or scratch the skin of an 

 animal, or to make small incisions, so as 

 to draw blood from the smaller vessels 

 without opening a large vein. 



SCATEBROUS. Abounding with springs. 



SCATTERED. When simple spots or marks 

 are separate from each other and not ar- 

 ranged in a certain order. 



SCENT. The power of smelling ; to perceive 

 by the olfactory organs, as to scant game. 



SCIATIC. Pertaining to the hip ; as, the 

 sciatic artery. 



SCIENTIFIC. According to the rules or prin- 

 ciples of science : as, a scientific arrange- 

 ment of shells, fossils, or minerals, &c. 



SCOPIFEROUS. Furnished with one or more 

 dense brushes of hair. 



SCOPIFORM. Having the form of a broom or 

 besom. 



SCORIA. Dross ; the recrement or matter 

 thrown off from metals in fusion. 



SCORIACEOUS. Partaking of the nature of 

 scoria. 



SCORIFORM. In the form of dross ; like 

 scoria. 



SCRAGGY. Lean with roughness ; rough 

 with irregular points, or an uneven sur- 

 face. 



SCROBITULATE. Having the surface filled 

 with small hollows or cavities ; pitted. 



SCROTUM. The integument which contains 

 the male organs of generation. 



SCUTIBRANCHIATA. The order of Gastcro- 

 podous Mollusca, in which the gills are 

 protected by a shield-shaped shell. 



SCUTIFORM. Having the form of a shield or 

 buckler. 



SCURF. A dry scab or crust formed on the 

 skin of an animal. 



SCUTATE. Covered or protected by large flat 

 scales. 



