282 



GLOSSARY. 



fringes ; oura, tail). The low- 

 est order of insects. 



Tombn-tosb'. Covered with fine 

 matted hairs. 



Tka-bec'u-l« (cranii), dim. of 

 trabs, a beam. Applied to the 

 longitudinal cartilaginous bars 

 of the fore-part of the head of 

 vertebrate embryos. 



Tra'che-a (Gr. tracheia, the 

 rough windpipe). The respira- 

 tory tube in vertebrates; the 

 air-tube of tracheate insects. 



Tkem-a-to'da (Gr. trema, a pore 

 or hole). An order of worms. 



Tbun ca'ted. Cut squarely off ; 

 docked. 



Ttj-bbr-cu'lose. Covered with 

 tubercles. 



T(jN-i-CA'TA(Lat. tunica, a,c\oak). 

 The class of Chordata called 

 Ascidians. 



Um'bo (Lat. the boss of a shield). 

 The beak of a Lamellibranclii- 

 ate shell. 



UN-G'U-LA'TA(Lat.Mn5rMta, a hoof). 

 The order of hoofed mammals. 



U-ko-de'la (Gr. oura, tail; delos, 

 visible). The tailed Batrachi- 

 aus. 



U-bo-mbre' (Gr. ouros, tail ; meros, 

 a part). Any of the abdominal 

 segments of an Arthropod. 



U-Rop'o-DA (Gr. ouros; pous, po- 

 dos, foot). Any of the abdom- 

 inal feet of Arthropoda. 



U-ro-somb' (Gr. ouros, tail ; meros, 

 a part). The abdomen of Ar- 

 thropods. 



tJ-RO stbrn'itb. The sternal or 

 under piece of the uromeres or 

 abdominal segments of insects. 



Vac-tj-ole' (Lat. vacuus, empty). 

 Tlie little cavities in the bodies 

 of Protozoa. 



Vein. Applied to the ribs or 

 " nervures" of the wings of in- 

 sects; the branches of the veins 

 are called venules. 



Ven'tral. Applied to tlie under 

 side of the abdomen, or of the 

 body of invertebrates. 



Ven'tri CLE (Lat. ventriculus, di- 

 minutive of venter). One of the 

 cavities of the heart or brain. 



Ver bic'u-latb. With thick set 

 tufts of parallel hairs. 



Ver-ru'cosb. Covered with wart- 

 like prominences. 



Vbr'te-bha (Lat. verio, I turn). 

 One of the bones of the spinal 

 column or backbone. 



Ver-ti-cil'latb. Placed in 

 whirls. 



Vb-si'clb (Lat. vesica, a bladder). 

 A little sac, bladder, or cys":. 



Vis'oB-RA (Lat. viscus). The in- 

 ternal organs of the body. 



Vi-yip'a-rous (Lat. vivus, alive; 

 and pario, I bring forth). Ap- 

 plied to animals which bring 

 forth their young alive. 



Zo'OiD (Gr. zoon, animal; eMos, 

 form). The highly specialized 

 organs of such animals as the 

 Hydroids, and other compound 

 forms which have a marked in- 

 dividuality, and which might 

 be mistaken for genuine indi- 

 viduals. 



Zo-o'PHYTB (Gr. zoom,, animal; 

 pAuiora, plant). Applied to the 

 plant-like polyps, sertularians, 

 and sponges. 



