Table 1.
Morphometric data of Rhytidodes gelatinosus (Rudolphi, 1819) Looss, 1901 (Digenea: Rhytidodidae) from marine turtles (Testudines: Chelonidae). Data presented in micrometers as ranges.
| Caballero y Caballero, 1954 | Bilqees, 1974 | Blair and Limpus, 1982 | Cavaco et al., 2021 | Present report | |
|---|---|---|---|---|---|
| Locality | Panamá | Pakistan | Australia | Brazil | Brazil |
| N | 4 | 1 | 12 | 2 | 4 |
| Host | C. mydas | C. mydas | C. caretta | C. caretta | L. olivacea |
| Body length (mm) | 13.911 – 14.243 | 16.9 | 5.85 – 17.130 (6.800) | 4.94 – 5.68 (5.31) | 5.8 – 7.6 (6.48) |
| Body width (mm) | 1.378 – 1.610 | 1.1 | 1.190 – 1.610 (1.350) | 1.2 – 1.34 (1.27) | 0.77 – 1.15 (0.97) |
| Oral sucker length | 133 | 600 | 350 – 460 (460) | 318 – 392 (355) | 280 – 441 (371) |
| Oral sucker width | 515 – 664 | diameter | 500 – 740 (740) | 403 – 535 (469) | 400 – 499 (444) |
| Pharynx length | 160 | 180 – 220 (220) | 160 – 200 (180) | 200 – 312 (265) | |
| Pharynx width | 110 | 150 – 240 (240) | 147 – 187 (167) | 140 – 253 (189) | |
| Oesophagus length | 2324 – 2407 | 2000 | 580 – 2400 (2400) | 676 – 992 (834) | 661 – 885 (723) |
| Oesophagus width | 73 – 79 (76) | 36 – 58 (49) | |||
| Cirrus sac length | 415 – 465 | (530) | 309 | 160 – 326 (241) | |
| Cirrus sac width | 266 – 332 | (420) | 183 | 150 – 242 (193) | |
| Ventral sucker length | 365 – 398 | 240 | 230 – 380 (380) | 214 – 255 (234) | 160 – 297 (233) |
| ventral sucker width | 349 – 398 | diameter | 300 – 420 (420) | 181 – 193 (187) | 150 – 317 (244) |
| Ovary length | 232 – 249 | 130 | 140 – 190 (150) | 169 – 181 (175) | 120 – 296 (206) |
| Ovary width | 266 – 274 | 150 | (220) | 204 – 246 (225) | 130 – 256 (177) |
| Mehlis gland length | 332 – 415 | – | |||
| Mehlis gland width | 498 – 531 | – | |||
| Anterior testis length | 664 – 797 | 390 | (740) | 183 – 310 (249) | 300 – 475 (414) |
| Anterior testis width | 398 – 465 | 200 | (330) | 168 – 290 (238) | 220 – 396 (296) |
| Second testis length | 581 – 780 | 420 | (890) | 338 – 404 (371) | 420 – 509 (463) |
| Second testis width | 465 – 481 | 220 | (380) | 244 – 301 (272) | 240 – 406 (298) |
| Egg length | 60 – 65 | 55 – 60 | (67) | – | 37 – 63 (51) (n=30) |
| Egg width | 34 – 40 | 37 – 45 | (35) | – | 27 – 38 (31) (n=30) |
Fig. 1.
Rhytidodes gelatinosus (Rudolphi, 1819) Looss, 1901 (Digenea: Rhytidodidae) found in a Lepidochelys olivacea from Brazil, ventral view (scale bar=1.0 mm).
Fig. 2.
Opening of the genital pore. A protuberance located directly in front of and slightly to the right of the ventral sucker is observed.
Table 2.
Reported hosts and localities for Rhytidodes gelatinosus (Rudolphi, 1819) Looss, 1901 (Digenea: Rhytidodidae).
| Host | Locality | References |
|---|---|---|
| Caretta caretta | Australia | Blair and Limpus (1982) |
| Brazil | Viana (1924); Travassos et al. (1969); Cavaco et al. (2021) Looss (1901); Looss (1902); | |
| Egypt | Sey (1977) | |
| Florida, USA | Luhman (1935); Greiner (2013) | |
| Italy | Manfredi et al. (1998); Santoro et al. (2010); Gracan et al. (2012); Pace et al. (2019); Gentile et al. (2021) | |
| Madeira, Portugal | Valente et al. (2009) | |
| Mediterranean Coast, França | Euzet and Combes (1962); Euzet et al. (1972) | |
| New Guinea | Braun (1899) | |
| Trieste, Adriatic Sea | Stossich (1895, 1898); Braun (1899); Looss (1901) | |
| West Mediterranean Sea | Aznar et al. (1998) | |
| Chelonia mydas | Brazil | Werneck and Silva (2015) |
| Florida, USA | Greiner (2013) | |
| Panama Gulf | Caballero y C. (1954) | |
| Mexico | Caballero-Rodriguez (1960) | |
| New Guinea | Braun (1899) | |
| Pakistan | Bilqees (1974) | |
| Rimini, Adriatic Sea | Rudolphi (1819) | |
| Eretmochelys imbricata | Cuba | Perez-Vigueras (1955) |
| Florida, USA | Greiner (2013) | |
| India | Simha and Chattopadhyaya (1969) | |
| Puerto Rico | Fischthal and Acholonu (1976) | |
| Lepidochelys kempii | Florida, USA | Greiner (2013) |
| Lepidochelys olivacea | Brazil | Present report |