OF GENERA IN ZOOLOGY. 
Ill 
Dipsas Doubleday. List Brit. Mus., p. 
25. 1847. Lep. 
Dipsastraea Blainville. Diet., lx, p. 
338. 1830. Coel. 
Dipsax Yoigt. Cuy., Tliierreich, iii, p. 
493. 6 tip a, sitis. (= Dipsas.) 1834. 
Moll., Biv. 
Dipterites Heer. Ins. tert. Oening., ii, 
p. 254. 1849. Dipt. 
Dira Mulsant. Col. 
Dircetis Grote. Bull. U. S. Geol. Surv. 
Terr., iv, p. 186.' 1878. Lep., Noet. 
Grote . 
Dirhiza Loew. Dipt. Beitr., iv, p. 21. 
(DirrhizaLoew.) 1850. Dipt. Verrall. 
Dirimus M’Coy. Bronn, Leth. Geogn., 
ed. 3. (cf. Dirhinus.) 1851. Moll., 
Gast. 
Dirotognathus Horn. Proc. Amer. Phil. 
Soc., xv, p. 79. dig, his; pijaaio, lacero; 
yvadog, mandibula. 1876. Col. Horn. 
Dirrhina Burmeister. Handb. Ent., 
iii, p. 568. dig, bis; piv, nasus. 1842. 
Col. 
Dirrhiza Loew. (= Dirhiza.) 1850. 
Dipt., Cecid. Verrall. 
Discaster Michelin MSS. Teste Ag- 
assiz, Rev. Ech., i, p. 178. 1872. 
Ech. 
Disceratus Scudder. Proc. Bost. Soc. 
Nat. Hist., xii, p. 335. dig; nepag. 
1869. Orth., Loc. Scudder. 
Dischista Burmeister. Handb. Ent., 
iii. 1842. Col. 
Dischyrius Bonelli. ( =Dyschirius.) 
Col. Agassiz. 
Discinella Hall. Notes on Some New 
Forms Brachiopoda. Discina. 1871. 
Brach. Hall. 
Discinisca Dall. Bull. Mus. Comp. 
Zool., iii, no. 1, p. 37. (Subg. 
Discina Lam. ; type D. lamellosa 
Brod.) 1871. Moll., Brach., Discin. 
Dall. 
Discites Walch. Naturg. Verst., ii ; teste 
Schrot., Lith. Lex., i, p. 411. dionog, 
discus. 1768. Moll. 
Discites Schlotheim. Petrif. 1820. 
Moll., Biv. 
Discocephalus Nordmann. Col. 
Discoceras Agassiz. Bull. Mus. Comp, 
Zool., i, no. 5, p. 76. dionog, a quoit. 
1878. Moll., Ceph., Amm. Hyatt. 
Discocotyle Diesing. Syst. Helm., i, p. 
423. 1850. Vermes. 
Discocyathus Edwards et Haime. Ann. 
Sc. Nat., [3], ix. dionog , discus; 
Kvadog, cyathus. 1848. Turbinolidae. 
Agassiz. 
Discodemus Le Conte. Class. Col. N. 
Amer., p. 223. ( = Eusattus.) 1862. 
Col., Tenebr. Le Conte. 
Discoderus Le Conte. Trans. Amer. 
Phil. Soc., x, p. 381. dionog, discus; 
depg, collum. 1853. Col., Carab. Le 
Conte. 
Discodrilida Vejdovsky. Zool. An- 
zeiger, ii, p. 185. Discus; dpihog. 
1878. Vermes, Ann. Olig. Vejdovsky. 
Discogaster Stal. Ofv. Vet. Akad. 
Forh., 1867, no. 7, p. 550, in table. 
1867. Hem., Coreid. 
Discogenia Le Conte. New Spec. Col., 
p. 117. 1866. Col., Tenebr. Le Conte. 
Discolita Rafinesque. Anal. Nat., 1815, 
p. 140. 1815. Moll., Ceph. 
Discolites Montfort. Conch. Syst. 
(=Nummulites Lam.) 1808. Moll. 
Agassiz. 
Discophyllum Hall. Palaeont. N. Y., 
i, p. 277. dionog, discus; tyvhlov, fo- 
lium. 1847. Hydr., Grapt. Hall. 
Discopora Lamarck. Pol. 1816. 
Discopsammia D’Orbigny. Note Pol. 
Foss. 1849. Eupsammidae. Agassiz . 
Discorbis Lamarck. Phil. Zool. 1809. 
Moll. Agassiz. 
Discosaurus Leidy. Proc. Acad. Nat. 
Sc. Philad., 1851, p. 326. 1851. Rept. 
Garman. 
Discoscaphites Meek. Invert. Foss. 
Upper Missouri, p. 415. (Subg. 
Scaphites; type Scaphites Conradi 
Morton.) 1876. Moll., Ceph. Dall, 
White. 
Discosorus Hall. Palaeont. N. Y., ii, 
p. 99. dtoKog , discus ; oopog, cumulus. 
1852. Moll., Ceph. Hall. 
Discostroma Zittel. Neues Jahrb. Mi- 
ner, 1878, p. 584; Abh. Akad. Wiss. 
Miinchen, 13, i, p. 112. 1878. Spongia. 
Discotoma Mulsant. Spec. Col. Trim. 
S6cur., p. 215. dianog, discus; ropij, 
incisura. 1851. Col. 
Discotrochus Edwards et Haime. Ann. 
Sc. Nat., [3], ix. dianog, discus; 
rpoxbg, trochus. 1848. Turbinolidae. 
Agassiz. 
Discus Camfbell. Trans. N. Zeal. Inst., 
xi, p. 297. 1879. Pisces, Scombr. 
