144 HERPETOLOGY AND ICHTHYOLOGY: GLOSSARY. 



SQUALUS. Latin. A shark. 



SQUAMIPENNES. From the Latin, 

 squama, a scale, and penna, a 

 feather. Systematic name of a 

 family of fishes. 



STELLIO. Latin. A kind of saurian. 



STERNAL. Belonging or relating to 

 the sternum. 



STERNUM. The breast-bone. 



STURIO. Specific name of the com- 

 mon sturgeon. 



STURIONES, Systematic name of an 

 order of fishes. 



STYLET. Diminutive of style. A 

 slender process or needle-like pro- 

 jection of bone. 



SuBBRACHiATi.-sub-brak-e-a-ti. Latin. 

 Plural of subbrachiatus. From the 

 Latin, sub, beneath, and brachium, 

 arm. Applied to an order of fishes 

 that have the ventral beneath the 

 pectoral fins, that is, the arms. 



SUBBRACHIAN. sub-brak-6-an. Ap- 

 plied to fishes of the order of sub- 

 brachiati. 



SUBCAUDAL. From the Latin, sub, 

 under, and cauda, tail. Applied to 

 that which is beneath the tail. 



SURMULUS. Latin. A surmullet. 



SUTURE. From the Latin, suo, I 

 stitch. A kind of immoveable 

 articulation or joint, in which the 

 bones unite by means of serrated 

 edges, which are, as it were, dove- 

 tailed into each other. The articu- 

 lations of the bones of the cranium 

 are of this kind. 



TACTILE SENSIBILITY The sensibility 

 which enables us to perceive im- 

 pressions through the means of the 

 sense of touch. 



T.ENIOIDES. From the Latin,/<ema,a 

 ribbon, and the Greek, eidos, re- 

 semblance. Systematic name of a 

 family of fishes. 



TADPOLE. From the Saxon, tad, toad, 

 and pola, a young one. The young 

 f the batrachians are called tad- 

 poles. 



TEN'DINOUS. Belonging or relating 

 to tendon. 



TEN'DON. From the Greek, teino, I 

 stretch. Strong, white, fibrous 



cords, which connect the muscles 

 to the bones which they move. 

 The tendons may be considered as 

 so many cords, for transmitting 

 the motion of the muscles to the 

 bones. They are sometimes vul- 

 garly designated under the name 

 of " leaders." 



TESTUDO. Latin. A tortoise. 



TETRODON. From the Greek, tetra, 

 four, and odous, (in the genitive, 

 oc/ontos,) tooth. Systematic name 

 of certain fishes. 



THERMO'METER. From the Greek, 

 thermos, heat, and metron, measure. 

 An instrument for measuring the 

 different degrees of heat or cold, 

 by means of the expansion and 

 contraction of the fluid, ( com- 

 monly mercury,) contained in it. 



THEUTYES. Systematic name of a 

 family of fishes. 



THORACIC. Belonging or relating to 

 the chest. 



THORAX. From the Greek, thorax, 

 the chest. The cavity destined to 

 lodge the chief organs of respira- 

 tion and circulation, the heart and 

 lungs. The chest. 



TH YM A LLUS. Systematic name of the 

 graylings. 



THYNNUS Systematic name of the 

 tunny. 



TIBIA. Latin. A flute. The largest 

 bone of the leg is so called. 



TINCA. Latin. A tench. 



TISSUE. From the Latin, texere, to 

 weave. The interlacement or union 

 of many things which form a body, 

 as threads of flax, silk, wool, &c., 

 of which cloths and stufts are made. 

 From analogy, the term is employed 

 in anatomy, to describe the sub. 

 stances of which the organs of ani- 

 mals in general, and of man in 

 particular, are formed, and which 

 result from the interlacement of 

 fibres, ft is applied to different 

 kinds of organization of the body, 

 as, for example, the muscular tissue, 

 osseous tissue, meaning the struc- 

 ture of which the muscles and 

 bones are composed. 



