Gyrodactylus bullatarudis Turnbull 1956

Autor: Rubio-Godoy, Miguel, Paladini, Giuseppe, García-Vásquez, Adriana
Rok vydání: 2010
Předmět:
DOI: 10.5281/zenodo.6211388
Popis: Gyrodactylus bullatarudis Turnbull, 1956 (Figure 3; Tables 3, 4 and 7) Type host: Poecilia (= Lebistes) reticulata Peters (���guppy���). New host record: Poecilia mexicana Steindachner (���shortfin molly���, ���topote del Atl��ntico���). Site of infection: Body and fins. Type locality: Not known. New locality records: R��o Moctezuma, Vega de Ram��rez, Hidalgo, M��xico (P. mexicana) (21 ��03' 31 ''N, 99 �� 28 '03''W); R��o Pixquiac, Xalapa, Veracruz, M��xico (X. hellerii) (19 �� 28 ' 39 ''N, 96 �� 57 '00''W). Voucher and type material examined: Two voucher specimens (USNPC 1181 ��� 21 and 1181 ��� 23) were studied for light microscopy. Specimens collected and examined for the current study: Four voucher specimens collected from P. mexicana are deposited in the Colecci��n Nacional de Helmintos (CNHE reg. no. 7133), Instituto de Biolog��a, Universidad Nacional Aut��noma de M��xico, M��xico City; and four voucher specimens are deposited in the Parasitic Worm Collection at The Natural History Museum (BMNH reg. nos. 2010.3.11.1��� 4), London, UK. Three voucher specimens collected from X. hellerii are deposited in the Colecci��n Nacional de Helmintos (CNHE reg. no. 7132), Instituto de Biolog��a, Universidad Nacional Aut��noma de M��xico, M��xico City; and three voucher specimens are deposited in the Parasitic Worm Collection at The Natural History Museum (BMNH reg. nos. 2010.3.11.5��� 7), London, UK. Comments: Measurements of the haptoral hard parts are provided in Table 3 for the material collected from P. mexicana and X. hellerii. In addition, the re-examination and measurement of the two G. bullatarudis vouchers from P. sphenops are given in Table 4. The measurement of all specimens provides new data on the dimensions of the body, haptor, pharynx, MCO and the additional morphometric characters proposed by Shinn et al. (2004). The posterior pharynx bulb, however, was not visible on either voucher specimen and no measurements for this structure are provided. The type locality for G. bullatarudis is unknown, as the original description was based on specimens collected from aquarium fish, with no mention of their origin. Harris (1986) discussed the fact that ascertaining the origin of G. bullatarudis is complicated as the host Poecilia reticulata has been globally distributed for mosquito control and the aquarium trade. The vouchers studied in this report originated from Costa Rica. If the morphology of the marginal hooks alone is considered as the basis of identification and discrimination, then those of G. bullatarudis can be readily distinguished from G. j a ro c h o sp. nov. and G. xalapensis sp. nov. (Figures 4, 5). The sickle base of G. bullatarudis is deep, representing 50 % of the length of the sickle; the heel is rhomboid and the toe region has a narrow bridge and a long sloping face to the toe proper which drops below the level of the heel. The sickle shaft is proportionately robust, forward angled which turns abruptly to give a short point which terminates at a position level with the mid-line of the toe. The marginal hook sickle base of G. j a ro c h o sp. nov. while as deep as that of G. bullatarudis, has a more rounded heel and a toe that terminates at a position level with the heel. The sickle shaft of G. jarocho sp. nov., however, curves gently into the point region, terminating in a longer point at a position slightly beyond the level of the toe. The discrimination of the marginal sickle of G. xalapensis sp. nov. from G. bullatarudis is more evident. The sickle base of G. xalapensis sp. nov. is half the depth of G. bullatarudis. The toe bridge of G. xalapensis sp. nov. is more pronounced and flat. The sickle shaft is shorter than that of G. bullatarudis, gently curving, terminating in a long sickle point which extends beyond the toe.
Published as part of Rubio-Godoy, Miguel, Paladini, Giuseppe & Garc��a-V��squez, Adriana, 2010, Gyrodactylus jarocho sp. nov. and Gyrodactylus xalapensis sp. nov. (Platyhelminthes: Monogenea) from Mexican poeciliids (Teleostei: Cyprinodontiformes), with comments on the known gyrodactylid fauna infecting poeciliid fish, pp. 1-29 in Zootaxa 2509 on page 16, DOI: 10.5281/zenodo.196033
{"references":["Turnbull, E. R. (1956) Gyrodactylus bullatarudis n. sp. from Lebistes reticulatus Peters with a study of its life-cycle. Canadian Journal of Zoology, 34, 583 - 594.","Harris, P. D. (1986) Species of Gyrodactylus von Nordmann, 1832 (Monogenea: Gyrodactylidae) from poeciliid fishes, with a description of G. turnbulli sp. nov. from the guppy, Poecilia reticulata Peters. Journal of Natural History, 20, 183 - 191."]}
Databáze: OpenAIRE
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