Thread cells = 
Thread-worms . 
Thylacinus . ‘ 
Thymus , és 
» Of frog. . 
$i of rabbit . 3 
8 of skate . x 
Thyroid . ‘ 
»  Offrog . ‘ 
ay of rabbit . 
a of skate . * 
Thysanoptera F 
Thysanura . : . 
Tibia . ‘i 
Tibio-tarsus . . 
Ticks . 
Tiedemann’s ‘bodies 
Tiger . >. : ‘ 
Tillotherium a . 
Tinamou 
Tissues 
Titanotherium 
Toads . 3 . 
Tornaria . : 
Torpedo : . 
3 electric organ of 
Tortoises 
Toxodon fi 
Trabeculee of skull 
-Tracheze 7 “ 
o «=O. Arachnoidea 
8 of Mites . : 
» Of Peripatus 
5, Of spider . 
Tracheal gills 
Tracheata . 
Trachomedusee . 
Trachydosaurus 
Trachymedusze 
Tragulina . 
Trematoda . 
Trematoda, classification of . 
Treptoplax . 
Trichechus . 
Trichina 
Trichocephalus . 
Trichocysts . : 
Trichoplax . . 
Trichoptera . : 
Tricladida . . 
Stinging cells’, 
INDEX ' 
PAGE 
142 | Triconodon , a 
202 | Trigeminal . . 
746 | Trilobites . . i 
500 | Triploblastic. . , 
596 | Tristomum . ; 
712 | Triton . , . < 
546 | Tritubercular : 7 
499 | Trivium 2 5 5 
596 | Trochanter . 
717 | Trochlear nerve 
546 | Trochosphere 
361 | Trombidium. . ‘ 
361 | Trophoblast . : A 
482 | Trophospongia . . 
663 | Trophozoite. . “ 
373 | Tropidonotus 
258 | Truncus arteriosus 
777 | Trypanosoma 
766 | Trypsin . 
689 | Tse-tse fly . 
40-44 | Tube- feet of brittle-star. 
763 a9 of sea-urchin . 
605 55 of starfish 
439 | Tubercle of rib 
567 | Tubifex 
532 | Tubipora . 
613 | Tubularia . 
765 |. Tunicata f . 
478 | as classification of 
345 | Tunicin 7 : . 
363 | Tupaia. - 
372 | Turbellaria . . ‘ 
320 >» Classification 
346 | Turtles. A g 
370 | Tylenchus . ‘ . 
318 | Tylopoda 
173 | Tympanic bulla 
628 | Tympanum . 3 i. 
171 | Typhlopide . F . 
756 | Typhlosole . . . 
183 | Tyroglyphus. . 
188 
136 | UINTATHERIUM . . 
779 | Ulna . . A 
207 | Umbilical cord . 3 
206 55 vesicle . F 
96 | Umbilicus of embryo . 
136 53 of feather . 
360 | Umbo. - 
182 | Uncinate processes , 
228, 
120, 359 
ee eee 
ies 
te} iS) 
Oo 
+ 393 
636, 660 
