DISTOMA — Continued. | 
oloris Dies., 1855, 64, based on Bellingham, 1844a, 427. ' 
on 2 /ce_p^aZ^^m Galli-Valerio, 1898m, 923 (for oxycephalum). 
opacum Ward, 1894, v. 15, 173-182, 1 pi. (in Amia calva, Ictalurus punctatus, | ; 
Perea flavescens, Cambarus propinqims; New Baltimore; Lake St. Clair; i 
August); 1895, 15 Feb., 218-219; (1895), 633-634; 1901, 176-184.— Braun, : c 
1900, 234.— jEegers., 1900, 736, 738, 740.— Looss, 1899b, 621.— Odhn., 1905, i| 
317. — Stiles & Hass., 1902d, 20 (type of Microphallus). ™ 
ophthalmohium Dies., 1850a, 334 (in Homo; Dresden) [D. oculi humani Gescheidt jj 
renamed]; 1858e, 333.— Aitken, 1866, 804, 839; 1872, 146, 205; 1874, 58.— R. Bl., ) .. 
1888a, 630.— de Bonis, 1876, 164; 1882, 180.— Braun, 1883a, 64-65; 1893a, 870; ! i 
1903, 3. ed., 151 (perhaps F. hepatica); 1906, 156. — Cobbold, 1860a, 6; 1864a, M 
191-192, fig. 41; 1866, 7; 1876, 211. “D. ophthalmohium or Monost. lentis;” j j 
1879b, 36, fig. 5.— Dav., 1877a, Ixxix, 820, 822.— Dunglison, 1893, 338, 820, I i 
1174.— Gamb., 1896a, 63.— Goubert, 1878, 130.— Gunther, 1858, 209.— Har- ^ 
ley, 1864a, 62.— Hoek, 1859, 42.— Hoyle, 1890, 538.— Ijima, 1889b, 123.— , j 
Jamieson, 1897a, 74. — Kholodk., 1898, 26, 32, 34. pi. 11, fig. 28; 1899a, 152. — : ^ 
Kuech., 1855, 181, 222-223, pi. 4, figs. 13-15.— Leuck., 1863a, 526, 610-613, 
633, fig. 205; 1889, 440, fig. 191.— Linst., 1878, 3.— Moniez, 1896, 152-153.— '■ i 
Moquin-Tandon, 1861, 373. — Mosler & Peiper, 1894, 177. — Schneidemuehl, i 
1896, 302.— Stiles, 1898a, 48; 1902s, 25, 29, 34.— Verrill, 1870, 171.— Vogt, i i 
1878, 10, 13. — ^^Vagner, 1883, 121. — ^\Vard, 1895, 328 (perhaps young D. Ian- 1 1 
ceolatum); 1903, 866 to Agamodist. — ^Wood & Fitz, 1897, 335. : ; 
opisthotrias Luetz, 1895a, 181-188, pi. 2, figs. 1-4 (in Didelphys aurita); 1895b, i i 
189-193; 1896a, 623. — Braun, 1899g, 492 (to Harmost.); 1900h, 12; 1901e, in 
338-339 (to Harmost.). — Looss, 1899b, 748 (to Heterlope). — Luehe, 1899, 532. — ! ^ 
Par., 1896, 3, 5. : j 
orhiculare Dies., 1850a, 349 (in Cebus trivirgatus; Brazil); 1855, 64, pi. 2, figs. 
20-22; 1858e, 335-336.— Braun, 1901e, 311, 312, 313, fig. 14.— Cobbold, 1860a, 
7; 1879b, 289. — Stoss., 1892, 36 (in Nyctipithecus trivirgatus; Brazil). 1C 
oricola Leidy, 1884a, 47 (in Alligator mississippiensis; Florida); 1891a, 414 (syn. |n 
of D. incommodum); 1904a, 180. — Braun, 1893a, 872. — Mont., 1892, 715 (ori- Itii 
cula). — Stoss., 1895, 219 oricula (s>m. of D. pseudostonium). 'j 
oricula Mont., 1892, 715, for oricola. — Stoss., 1895, 219. ,| 
ornithorhynchi Johnson, 1901a, Nov. 7, 334-338, pi. 22, figs. 1-4 (in Ornithorhyn- lyi 
chus anatinus Shaw). 
orthagorisd molx Dies., 1855, 64; 1858e, 342 (in Orthagoriscus mola; Ireland) liiJ 
(renamed D. macrocotyle). j; 
osculatum Looss, 1901e, 654-656, fig. 11 (in Motella vulgaris). j 
ovatum (Rud., 1803) Rud., 1809a, 50, 357-358, 420, 432; 1819a, 93, 121, 674.— M 
Anacker, 1887c, 513. — Baillet, 1866b, 105. — Baird, 1853a, 51 (includes Hirudo j I 
fasciolaris Mueller, Fasc. ovata Rud.). — R. Bl., 1888a, 643. — Braun, 1892a, ii 
714, 734, 736, 765; 1893a, 876, 877, 879, 893; 1893d, 467, 468; 1901, 12, 13, 14, ! I 
15, 16; 1901, 258-259; 1901, 561; 1902b, 68 (to Cephalogonimus by Sons., [ 
1890; type of Prosthogonimus Luehe, 1899, 539; and of Prymnoprion Looss, [ 
1899b, 628), 69, 72 (in Corvus corone) 73, 74, 75, 76, 77, 78, 79, 80, 82, 83, [ 
85.— Caruccio, 1886, 293.— Cobbold, 1860a, 9; 1879b, 440.— Crep., 1837a, 317, I 
318, 322, 326, 329; 1846, 130, 131, 134-137, 139, 141-143, 146; 1851, 284.— i 
Dav., 1877a, Ixxix. — Dies., 1850a, 335-336 (includes: Igeln in Hiihnereiern j 
Hanow; Hirudo fasciolaris Mueller, Fasc. ov. Rud., D. anatis domesticse Rud . ) ; 
1858e, 333 (in Fringilla montana, Scolopax gallinago, Ardea grus, Fulica i 
atra). — Duj., 1845a, 394-395. — Giebel, 1857, 265. — Hahn & Lefevre, 1884a, | 
516. — Hass., 1896a, 2 (to Cephalogonimus). — Hugi., 1827, 48. — Juel, 1889, i 
36.— Kowah, 1894, 2; 1894, 221; 1895, 350; 1895, 372-390, pi. 8, fig. 7; 1896d, | 
(7), 257, to (Cephalogonimus) (in Corvus cornix, Gallinago scolopacina; Du- dl 
blany). — Landois, 1882a, 13; 1882, 23 (in hen’s egg). — Linst., 1873, 95, 96, jf 
97, 98, 100, 101, 103.— Lint., 1887, 367-369 (in hen’s egg; U. S. A.).— Looss, 
1894a, 264; 1899b, 628-629 (type of Prymnoprion), 720, 721; 1900, 608.— v 
Luehe, 1899, 539 (type of Prosthogonimus). — Mehlis, 1831, 178. — ^Mont., 1893, I 
157, 190.— Mueh., 1898, 29-30, 100.— Nord., 1840, 616.— Olfers, 1816, 44.— ^ 
Sambon, 1900, 219.— Schneidemuehl, 1896, 303.— Sieb., 1835, 64, 65; 1836, i 
233.— Sons., 1890, 134.— Spencer, 1889, 109 (in hen’s egg).— Staff., 1902, 719.- |‘ 
Stoss., 1892, 144 (to Cephalogonimus); 1898, 23. — Tschudi, , 75. — Ver- 
rill, 1870, 179.— Wedl, 1857, 241-242, pi. 1, fig. 1.— Wolffhuegel, 1900, 9, 24, i'- 
26, 32. — Also reported for Anas boschas dom., A. clangula, A. clypeata, A. di 
