698 
TaHy-san-u'RA (Gr. 
fringes; oura, tail). 
est order of insects. 
To-MEN-TOsE’. Covered with fine 
matted hairs, 
TRA-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. 
TREmM-a-TO'DA (Gr. trema, a pore 
or hole), An order of worms. 
TRUN-CA'TED. Cut squarely off; 
docked. 
TU-BER'CU-LOSE. 
tubercles. 
Tuwn-t-ca’TA (Lat, tunica, a cloak). 
The class of worms called As- 
cidians. 
thusanot, 
The low- 
Covered with 
Um'so (Lat. the boss of a shield). 
The beak of a Lamellibranchi- 
ate shell. 
Un-eu-a'TA (Lat.ungula, a hoof). 
The order of hoofed mammals. 
U-Ro-DE'La (Gr. oura, tail; delos, 
visible). The tailed Batrachi- 
ans. 
U-R0-MERE' (Gr. owros, tail; meros, 
apart). Any of the abdominal 
segments of an Arthropod. 
U-rop’o-pa (Gr. owros; pous, po- 
dos, foot). Any of the abdom- 
inal feet of Arthropoda. 
U-R0-SOME’ (Gr. ours, tail; meros, 
a part). The abdomen of Ar- 
thropods. 
U-ro-sTERN ITE. The sternal or 
under piece of the uromeres or 
abdominal segments of insects. 
GLOSSARY 
Vac-u-oLe’ (Lat. vacwus, empty). 
The 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 the under 
side of the abdomen, or of the 
body of invertebrates. 
VEN'TRI CLE (Lat. ventriculus, di- 
minutive of venter, belly). One 
of the cavities of the heart. 
VER-RIC'U-LATE. With thick-set. 
tufts of parallel hairs. 
VeR’'RU-cosE. Covered with wart- 
like prominences. 
VER'TE-BRA (Lat. verto, I turn). 
One of the bones of the spinat 
column or backbone. 
VER-TL-CIL'LATE. Placed in 
whirls. 
VEs'-CLE (Lat. vesica, a blad- 
der). A little sac, bladder, or 
cyst. 
Vis'cE-RA (Lat. viscus). The in- 
ternal organs of the body. 
VI-vIP’A-RoUS (Lat. vious, alive; 
and pario, I bring forth). Ap- 
plied to animals which bring. 
forth their young alive. 
Zo'é1p (Gr. zodn, animal; e?dos, 
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'PHYTE (Gr. zodn, animal;. 
phuton, plant), Applied to the 
plant-like polyps, sertularians, 
and sponges. 
