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First report of Rhytidodes gelatinosus (Rudolphi, 1819) Looss, 1901 (Digenea: Rhytidodidae) in an olive-ridley Turtle Lepidochelys olivacea (Eschscholtz, 1829) from Brazil

J. Da Cunha Fernandes
J. Da Cunha Fernandes
, 
L. M. De Carvalho
L. M. De Carvalho
, 
J. C. Gomes Borges
J. C. Gomes Borges
, 
J. E. V. Parente
J. E. V. Parente
 oraz 
M. R. Werneck
M. R. Werneck
   | 26 gru 2023
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Article Category: Research Note
Data publikacji: 26 gru 2023
Zakres stron: 257 - 262
Otrzymano: 21 cze 2023
Przyjęty: 23 lip 2023
DOI: https://doi.org/10.2478/helm-2023-0030
Słowa kluczowe
© 2023 J. Da Cunha Fernandes et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1.

Rhytidodes gelatinosus (Rudolphi, 1819) Looss, 1901 (Digenea: Rhytidodidae) found in a Lepidochelys olivacea from Brazil, ventral view (scale bar=1.0 mm).
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.
Opening of the genital pore. A protuberance located directly in front of and slightly to the right of the ventral sucker is observed.

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)

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
eISSN:
1336-9083
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Life Sciences, Zoology, Ecology, other, Medicine, Clinical Medicine, Microbiology, Virology and Infection Epidemiology
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