227 
DISTOMA — Continued. 
reticulatum Poir., 1886, 39, pi. 3, fig. 8 (in Axinums dugesii). — Braun, 1899g, 491 
(syn. of Clinost. marginatum); 1900h, 44, 45. 
retihulatum Looss, 1885b, 59, for reticulatum. 
retroconstrictum Sramek, 1901, 95, 108, fig. 62 (syn. Monost. constrictum) (in 
Abramis brama Cuv.); 1902, 21 Apr., 173. 
retroflexum Mol., 1859, 290 (in Belone acus; Batavii); 1861, 213. — Braun, 1893a, 
910; 1893b, 184 (in Bel. vulgaris). — Carus, 1884, 124. — Dies., 1859c, 432. — 
Luehe, 1900, 488, 492; 1901, 480.— Stoss., 1883, 117 (in Bel. acus); 1886, 16; 
1891, 216. 
retusum Duj., 1845a, 405-406 (in Rana temporaria; Rennes), to (^Brachycoelium). — 
Baillet, 1866b, 96.— Ben., 1858a, 1861a, 92-96, 178, 186, pi. 11, figs. 9-27.— 
Braun, 1892a, 767; 1893a, 860, 866, 881. — Cobbold, 1860a, 18 (in Rana escu- 
lenta; Valentin). — Dav., 1877a, Ixxi, fig. 34. — Dies., 1850a, 388 (includes D. 
clavigerum; D. ranse esculentse); 1858, 348 (in Rana halecina); 1859c, 434 
(cf. Cere, armata minor Ben., 1858a, 98, pi. 11, figs. 9-27. in Lymnseus stag- 
nalis; Belgium).— Ere., 1881e, 73, 82, 84, 85, 89; 1882a, 309, 318, 320, 321, 
325. — Fraip., 1880c, 417. — Gamb., 1896a, 72. — Hahn & Lefevre, 1884a, 516 (of 
“Rud.”). — Leidy, 1851, 207; 1856, 44. — Linst., 1887, 97, 98, 99. — Looss, 
1894a, 82, 84 (of Ben. is syn. of D. endolobum), 85, 208; 1899b, 611. — Luehe, 
1899, 536.— Mont., 1893, 43.— Pag., 1857, 41.— Staff., 1902, 724.— Stiles, 1901, 
197, 199, 201. — Stoss., 1889, 63. — Also reported for Phryganeidae larvae. 
rhatonisii Simon, 1897, 223, misprint for rathouisii. 
rhizo'phisx Mont., 1888, 199 (for rhizophysae) . 
rhizophysx Studer, 1878, 12-13, pi. 1, figs. 2, 7 (in Rhizophysa conifera). — Braun, 
1893a, 869; 1893d, 468. — Mont., 1888, 199 (rhizophisae) ; 1893, 123. 
[rhodopyge Sluiter, 1898 (a tunicate).] 
rhomhi Ben., 1870, 72 (in Rhombus maximus). — Braun, 1893a, 872. 
ricchiardii Lopez, 1888, 137-138. — Looss, 1899b, 552, 736; 1901, 204, 206; 1902m, 
482, 791 (amphitypie), 846, 854. 
richardii Brand., 1891b, 267 (for richiardii). 
richiardi Mont., 1891, 500 (for richiardii). 
richiardii Lopez, 1888a, 137-138 (in Acanthias vulgaris; Risso). — Ariola, 1899, 8. — 
Brand., 1891b, 267 (richardii). — Braun, 1892a, 698, 715. — Crety, 1892b, 373 
(vitelline nuclei of); 1892c, 396, 399 (richiardi); 1892, 24-26, fig. 2; 1892, 
(92-97); 1893a, 380, 382-384 (richiardi).— Linst., 1888, 46; 1903, 354.— Looss, 
1894a, 134, 145, 166, 179, 189, 190, 200, 204, 210, 211, 224; 1902m, 482 (ricchi- 
ardii), 791, 846, 854, 855 (type of Probolitrema) . — Mont., 1889, 132-134; 1889, 
612; 1891, 500 (richiardi); 1892, 5, 6, 7 (richiardi); 1892, Oct. 7, 188 (richi- 
ardi); 1893, 17, 19, 32, 33, 34, 40, 41, 42, 43, 49, 50, 61, 62, 65, 66, 67, 68, 69, 71, 
72, 76, 78, 79, 82, 83, 84, 85, 86, 87, 88, 90, 91, 94, 95, 96, 97, 98, 99, 102, 103, 
106, 107, 109, 110, 112, 114, 117, 120, 122, 135, 139-148, 209, pi. 1, fig. 10, pi. 5, 
fig. 51-55, pi. 6, fig. 87, pi. 7, figs. 91-102, pi. 8, figs. 125-130; 1899,103; 1896, 
147, 166 (richiardi).— Ofenheim, 1900, 147, 153, 156, 160, 163, 164, 169, 174.— 
Shipley & Hornell, 1905, 54, 55 (in Rhinodon typicus). — Sons., 1890, 135 
(richiardi). — Stiles, 1896, 205. 
rigens Linst., 1878a, 282 (in Scymnodon ringens) [apparently lapsus for Dist. ligula 
Ben., 1871a, 12], 360 (ringens). — Ariola, 1899, 8. — Mont., 1893, 53. 
ringens Rud., 1819a, 101, 385 Gn Picus tridactylus; Mus. Vien.). — Braun, 1893a, 
877; 1893d, 467; 1901, 561, 568.— Dies., 1850a, 361 (syn. of D. macrost.).— 
Duj., 1845a, 444. — Linst., 1903,354. — Stoss., 1892, 184 (syn. of D. macrost.); 
1898, 23.— Schlotthauber, 1860, 130. 
ringens Linst., 1878a, 360, see rigens. 
ringen Cobbold, 1880, 139-140, pi. 10, figs. 1-3 (Homo); 1884g, 976. — Anders, 1903, 
6 ed., 1245 (syn. of D. pulmonale). — R. BL, 1888a, 627-630, 631, fig. 326; 1891, 
610 (syn. of D. westermanni). — Braun, 1893a, 876, 877, 882; 1901e, 332; 1903, 
3 ed., 155 (syn. of Paragonimus westermani); 1906, 161. — Brunet, 1902a, 125. — 
Chedan, 1886a, 241-244. — Coplin, 1898, 339-340. — Dunglison, 1893, 338. — 
Eyles, 1887a, 660. — Gamb., 1896a, 63. — Giard & Billet, 1892a, 614. — Hackley, 
1886, 519. — Hahn & Lefevre, 1884a, 546-548 (syn. of D. pulmonale Bselz). — 
Huber, 1896a, 576 (syn. of D. pulm.). — Ijima, 1889b, 148. — Inouye, 1897c, 1-4 
(in brain); 1903a, 120-135; 1904a, 617-618. — Jackson, 1888a, 653. — Katsurada, 
1900, 506. — Linst., 1889, 3; 1890f, 178. — Lockwood, 1901, 2 ed., 821. — Looss, 
