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 Author Rubio-Godoy, Miguel Author Paladini, Giuseppe Author García-Vásquez, Adriana text Zootaxa 2010 2509 1 29 journal article 48018 10.5281/zenodo.196033 a86ba3e8-b241-4166-a37a-5abb4b60edcc 1175-5326 196033

TABLE 5. Percentage of the variance explained and component loadings for gyrodactylids parasitizing poeciliid fish used in the two rounds of principal components analysis (PCA). For each specimen a total of 13 ln -transformed measurements were made on the hamuli and marginal hooks. Variables that make a notable contribution to the separation of specimens within each PCA are highlighted in a bold font (i.e. above ± 0.7).

	First PCA (n = 45) Factor (1)	Factor (2)	Second PCA (n = 29) Factor (1) Factor (2)
Total variance explained (%) Cumulative variance (%)	46.03 46.03	15.01 61.04	40.65 28.65 40.65 69.29
Hamulus total length (HTL) Hamulus aperture distance (HA) Hamulus proximal shaft width (HPSW) Hamulus point length (HPL)	– 0.789 –0.887 –0.681 – 0.822	0.215 0.378 0.020 –0.117	– 0.846 –0.033 – 0.836 0.284 – 0.800 –0.141 – 0.912 0.022