190 
DISTOMA— Continued. 
jilum Duj., 1845a, 418 (in moineaux at Rennes), to (Brachylaimus). — Cobbold, 
1860a, 15 (in Fringilla dom.). — Dies., 1850a, 376. — Hausmann, 1897b, 28. — 
Stoss., 1892, 152. 
fimbriatum Busch, 1851, 99, pi. 15, fig. 12 (in Sagitta). 
flagellatum^lomez, 1891, 27 (in Gymnotus electricus); 1896, 144. 
flavescens Pag., 1857, 34-35, pi. 3, fig. 14 (in Bulimus radiatus). — Braun, 1892a, 
642. — Dies., 1858d, 278 (to Cercariaeum) . 
flavescens Ben., 1870, 47, pi. 5, fig. 4,(inGobius jozo; G. minutus). — Stoss., 1886,21. 
flavocinctum Linst., 1879, 183-185 (in Anguis fragilis). — Stoss., 1895, 230; 1897, 9 
(=D. crassicolle); 1898, 32. 
flexum Lint., 1892, 98-99, pi. 6, figs. 36-44 (in Oedemia americana). 
flexuosum Rud., 1808a, 346; 1809a, 50, 389-391 (in Talpa europsea): 1819a, 105. — 
Bellingham, 1844a, 424.— Braun, 1891d, 421; 1901a, 33.— Cobbold, 1860a, 7; 
1879b, 296. — Dies., 1850a, 360; 1858e, 341 (in Talpa em'opaea). — Duj., 1845a, 
398-399. — Hausmann, 1897b, 28. — Looss, 1899b, 562, type of Omphalometra. — 
Much., 1896, 24^248, figs. 1-8; 1896, 588; 1898, 16,^28.- Olfers, 1816, 44.— 
Stoss., 1892, 26 (in Talpa europaea; Greifswald, Copenhagen, Rennes). 
foecundum Lint., 1900, 269, 282, 289-290, pi. 36, figs. 27-35, pi. 37, figs. 36-37 (in 
Lopholatilus chamaeleonticeps); 1901, 415, 419, 432, 472. 
foliaceum 'Mol., 1859, 288 (in Gobius paganellus; Batavii); 1861, 199. — Cams, 1884, 
131.— Dies., 1859c, 428.— Stoss., 1886, 48. 
foliatum Lint., 1898, 532-534, pi. 49, figs. 3-5, pi. 50, figs. 1-3, pi. 51, figs. 1-4 (in 
Molamola); 1900, 282; 1901, 415, 422, 466; Looss, 1902m, 644, to Orophocotyle. 
foliiforme Crep., 1846, 149 (in Squalus griseus); 1837, 317. 
folium Olfers, 1816, 45, fig. 15 (t. h. Esox lucius). — Bell, 1887a, 117. — Braun, 1892, 
44; 1892a, 642, 663, 674, 697, 710, 716, 720, 723, 737, 746, 783, 785; 1892g, 461- 
463; 1893a, 876; 1893d, 467; 1899, 2; 1899g, 490, 492, type of Phyllodist.; 
1899b, 721; 1901b, 9, 10, 12.— Cobbold, 1860a, 23.— Cohn, 1896, 240.— Darr, 
1902, 688. — Dies., 1850a, 343 (in Esox lucius; Berlin); 1858e, 335.^ — Duj., 
1845a, 464. — Fil., 1855b, 25. — Hausmann, 1897b, 15. — Kroyer, 1846-53a, 
253. — Looss, 1893b, 813, 814, 815; 1894a, 2, 18-24, D. duplicatum [Rhopalo- 
cerca tardigrada], yieryed as young form, 28, 29, 31, 58, 62, 63, 64, 110, 125, 
136, 137, 138, 142, 159, 161, 167, 174, 179, 181, 183, 185, 186, 194, 197, 200, 204, 
206, 211, 215, 217, 227, 230, 269, 270, 275, pi. 1, figs. 19-22, pi. 4, figs. 75-80 
(reported for Aceriiia cernua; Cottus gobio; Salmo umbla; Thymallus yul- 
garis; Trutta yariabilis); 1899b, 605, type of Spathidium; 1902m, 476, 477. — 
Mont., 1888a, 7, 55; 1893, 83, 102, 107.— Much., 1898, 11, 15, 28.— Odhn., 1902, 
64, 65. — Rossbach, 1906, 377, 388.^ — Rud., 1819a, 96-97, 371-372, 588.^ — Spengel, 
1892. — Ssinitzin,1901, y. 24, 25 Xoy., 689-694 (in Dreissenia polymorpha); 
1902, 359-360; 1904, 768, figs, d, e.— Staff., 1902, 481, to (Spathidium), in 
Ameiurus nebulosus. — Stoss., 1886, 48. — Wagener, 1855, 1857, 26, 27. — 
Will.-Suhm, 1873. — Zschokke, 1884. 
formosum Sons., 1890, 134-136 (in Grus cinerea Bechst.); 1891, 2 Mch., 291. — 
Braun, 1892a, 698; 1901,944; 1902b, 21, 22.— Mont., 1893, 82, 148; 1896,166.— 
Ofenheim, 1900, 160. — Stoss., 1892, 143 (to Polyorchis). 
fractiim Rud., 1819a, 107, 397 (in Spams salpa; Naples). — Braun, 1893a, 910. — 
Cams, 1884, 124.— Cobbold, 1860a, 28.— Dies., 1850a, 377-378.— Duj., 1845a, 
458. — Jacoby, 1900, 4. — Looss, 1894a, 170, 204, 219. — Luehe, 1900, 487. — 
Mont., 1892,'' Oct. 7, 174, 175; 1893, 13, 23, 24, 32 (factum), 33, 40, 41, 42, 43, 
61, 79, 82, 83, 85, 87, 88, 91, 94, 96, 98, 102, 105, 106, 107, 114, 120, 141, 146, 
167-172, 175, 186, pi. 1, fig. 9, pi. 5, fig. 62, pi. 6, figs. 81-86, pi. 7, figs. 110-111, 
pi. 8, figs. 112, 114.— Nord., 1832a, 35.— Odhn., 1905, 328.— Sons., 1890, 139- 
140 (in Box salpa Cuy.); 1891, 262. — Stoss., 1886, 49, to (Podocotyle); 1887, 
184; 1892, 65. 
fragile Lint., 1900, 269, 282, 295, pi. 39, figs. 68-70 (m Mola mola); 1901, 415, 420, 
466. — Type of Stenocollum 1904. 
fraternum Looss, 1894d, 42-48, pi. 2, figs. 13-15 (in Pelecanus onocrotalus) ; 1895a, 
1896b, 60-63, 101, 154, 156, pi. 4, figs. 36, 37 (in pelican, Alexandria); 1899b, 
535, 550, 556, to Coenoofonimus; 1902m, 804, 805, 886. 887. — Braun, 1901e, 334, 
336, 338.— Jacoby, 1900, 23.— Jaegers., 1898, 9, 12.— Luehe, 1899, 539, to Cotylo- 
gonimus (Cotylogonimus). — Moniez, 1896, 143-144. — Mueh., 1898, 81, 82 
(considers D. concamm a Mesogonimus and more or less related to fraternum 
and heterophyes). — Sons., 1896, 314. — Stoss., 1898, 42. 
