INDEX OF GENERA. 



253 



PAGE. 



Triarthrella, f. 223 



Triarthrus,m 223 



Trichomanites, m 40 



Trichospongia, f- 44 



Trigonocarpon, n 40 



Trigonodus, TO 239 



Trigonotreta, / 139 



Trimerella, f 139 



Trimerus 223 



Trinucleus, m 223 



Triplegia 140 



Trochita, / 164 



Trochoceras, n 179 



Trochonema, » 164 



Trocholites, m 179 



Trochophyllum, n 41 



PAGE. 



Troclim 164 



Tropicloleptu8,ra 1 40 



Tubipora, /. 63 



TuditanuB,m 242 



Turbo, TO 164 



Turhonilla 164 



Turritella, /. 164 



Ulodendron, n 41 



UngvJ.ina 205 



Uphantsenia, /■ 41 



Vanuxemia 205 



Vasocrinus, to 93 



Venustodus, to 239 



Vermipora, f 63 



Vesicularia, /. 63 



Vitulina, f 140 



PAGE. 



Walchia, f 41 



Waldheimia, f. 140 



Whittleseya, / 41 



Xenoneura, n 220 



Xenophora, f 164 



Xylobius, m 224 



Xystracanthus, m 239 



Xystrodus, m 239 



Yoldia,/ 205 



Zamites, m 41 



Zaphrentis, f 63-245 



Zeacrinus, to 93 



ZoniteSjTO 104 



Zygospira, /. 140 



