OF GENERA IN ZOOLOGY. 
339 
Trachysycon Zittel. Neues Jahrb. Mi- 
ner., 1878, p. 602; Abli. Akad. Wiss. 
Muncken, xiii, i, p. 140. 1878. 
Spongia. 
Trachyteuthis Meyer. Neues Jakrb. 
Miner., 1846, p. 598. 1846. Moll., 
Cepk. 
Trachytoxus Thomson. Pkysis, ii, p. 
72. Col. 
Trachy triton Meek. Smitks. Inst. Ckeck 
List Invert. Foss., p. 37. rpax vg, 
rougk ; Triton, nom. gen. (Type 
Fusus ? vinculum Hall and Meek.) 
1864. Moll., Gast. Dali, White. 
Trachyum Billings. Pal. Foss., i. Tra- 
ckus. 1865. Spongia. 
Tragocera Billberg. Enum. Ins., p. 
91. 1820. Lep. 
Tragoceras Gaudry.- Compt. rend. ■ 
Acad. Sc. France, — , p. — . (Anim. 
Foss. Attique, p. 278, 1865.) rpayog, | 
bouc; uepag, corne. 1861. Mamm., 
Rumin. Gaudry. 
Tragulotryus Gervais. 1874. Mamm. 
Dalton. 
Trailia Cameron. Trans. Ent. Soc. 
Lond., 1878, p. 148. Nom., propr. 
1878. Hym., Tentkr. 
Trapezidera Motschoulsky. Sckrenck, 
Reis., ii, p. 244. Tpurcefa, mensa; Seprj, 
collum. 1860. Col. 
Treckicus Le Conte. Trans. Amer. 
Pkil. Soc., x, p. 386. (=Perigona.) 
1853. Col., Carab. Le Conte. 
Trechignathus Motschoulsky. Col. 
Trechinites Heer. Verb. Holl. Maatsck. 
Wetensck., xvi, p. 34. 1862. Col. 
Trechoides Motschoulsky. fitud. Ent., 
v, p. 26. 1856. Col. 
Treiodons Duges. 1879. Col. Zool. 
Bee. 
Tremabodictyon Zittel. Prot. Dalton. 
Tremanotus Hall. Rep. N. Y. State 
Cab. Nat. Hist., xx, p. 347. rpepa, 
foramen; vorvg, dorsum. 1867. Moll., 
Gast. Hall. 
Tremaster Verrill. Proc. U. S. Nat. 
Mus., ii, p. 201. 1879. Eck., Aster. 
Verrill. 
Trematis Sharpe. Quart. Journ. Geol. 
Soc. Lond., iv, p. 66. 1848. Moll., 
Brack. 
Trematocrinus Hall/ Suppl. Iowa Rep. , 
p. 70. 1860. Eckinodermata (Toss.). 
Waterhouse. 
Trematodera Dum^ril. Erp. Gen., ix, 
p. 174. ( = Derotremata. ) 1854. 
Batr. Gar man. 
Trematodictyoii Zittel. (Geol. Record, 
p. 326.) 1877. Spongid. 
Trematodiscus Meek and Worthen. 
Proc. Acad. Nat. Sc. Pkilad. Trema ; 
diskos. 1861. Moll., Cepk. 
Trematopora Hall. Palaeont. N. Y., ii, 
p. 149. rpripa, punctura ; nopog, fora- 
men. 1852. Bryozoa. Hall. 
Trematopygus D’Orbigny. Pal. Frang. 
Cr6t., vi. 1855. Eck. 
Trematosaurus Braun. Berickt Naturf. 
Aerzte, 1841, pp. 74,75. 1841. Rept. 
Gar man. 
Trematospira Hall. Rep. N. Y. State 
Cab. Nat. Hist., xii, p. — . rpepa, 
foramen; spira, spire. Brach. Hall. 
Tremaulidium Schmidt. 1879. Spongia. 
Zool. Jahresb. 
Tremectopus Phillips. Moll. Sic., ii, 
p. 201. ( = Tremoctopus. ) 1844. 
Moll., Cepk. 
Tremocoenia D’Orbigny. Note Pol. 
Foss. ( = Stylina.) 1849. Eck., 
Astraeid. Agassiz. 
p. 144. 1815. Moll., Gast. 
Trepanes Motschoulsky. Bull. Soc. 
Nat. Moscou, xxxvii, p. 186. 1864. 
Col. Waterhouse. 
Trephritis Gray. ( = Tepliritis Latre- 
ille.) 1832. Dipt., Muse., Tryp. 
Verrall. 
Tretioscincus Cope. Proc. Acad. Nat. 
Sc. Pkilad!, 1862, p. 184. 1862. 
Rept., Lacert., Seine. Cope. 
Tretosphys Cope. Proc. Acad. Nat. Sc. 
Pkilad., 1868, p. 186. 1868. Mamm., 
Get., Plat. Cope. 
Trhyptocera (Meigen) Rondani. ( = 
Tkryptocera. ) 1859. Dipt., Muse., 
Tack. Verrall. 
Triacanthodon Owen. (Geol. Record, 
291.) 1877. Mamm. 
Triacodon Marsh. Amer. Journ. Sc. 
Arts, [3], ii, p. 123. rpelg, tkree; utcy, 
a point; odovg, a tootk. 1871. Mamm., 
Marsup. Marsh. 
Triactis Klunzinger. 1879. Antkozoa. 
Zool. Jahresb. 
Triaena Le Conte. Ann. Lyc. Nat. 
Hist. N. Y., 1848, p. 265. (=Ainara.) 
1848. Col., Carab. Le Conte. 
