Table 1.

An overview of the cichlid fishes examined from “tilapia” farms in Mexico where Oreochromis niloticus (different strains) and native fish were sampled, and from where gyrodactylids were collected and identified taxonomically.

State	Host	Total worms	Worms processed	Gyrodactylus sp.	GenBank acc. no	CNHE acc. no
1.Centre-South
Chiapas (Chis.)	O. niloticus	679	36	Gyrodactylus cichlidarum	KY489687	11389‡
					KY489688	11389‡
					KY489689	11389‡
					KY489692	11389‡
					KY489693	11389‡
				Gyrodactylus yacatli	KY489740	11418**
					KY489741	11418**
					KY489742	11418**
					MN759049	11418**
				Gyrodactylus shinni n. sp-	MN759066	11387*
					MN759067	11388†
	Unidentified cichlid	37	19	Gyrodactylus cichlidarum	–	11390‡
				Gyrodactylus yacatli	–	11419**
				Gyrodactylus shinni n. sp-	–	11388†
Oaxaca (Oax.)	Oreochromis niloticus	139	16	Gyrodactylus yacatli	MN759055	11421**
					MN759051	11421**
					MN759056	11421**
					MN759054	11421**
	Paraneetroplus nebuliferus	5	2	Gyrodactylus cichlidarum	MN759061	11407‡
					MN759060	11407‡
	Vieja fenestrata	10	10	Gyrodactylus cichlidarum	MN759057	11408‡
					MN759064	11408‡
					MN759065	11408‡
					MN759058	11408‡
					MN759059	11408‡
					MN759062	11408‡
					MN759063	11408‡
				Gyrodactylus yacatli	MN759053	11422**
					MN759050	11422**
Puebla (Pue.)	Oreochromis niloticus	32	6	Gyrodactylus cichlidarum	–	11406**
Tabasco (Tab.)	Oreochromis niloticus	47	16	Gyrodactylus cichlidarum	KY489686	11401‡
					KY489684	11402‡
					KY489685	11402‡
					KY489691	11402‡
					KY489697	11402‡
					KY489698	11402‡
Veracruz (Ver.)	Oreochromis niloticus	130	24	Gyrodactylus cichlidarum	–	11416‡, 11417‡
	Florida tilapia	5	3	Gyrodactylus cichlidarum	–	11414**
				Gyrodactylus yacatli	KY489752	11423**
	Pargo UNAM	390	19	Gyrodactylus cichlidarum	–	11411‡, 11412‡, 11413‡
				Gyrodactylus yacatli	–	11425**
	Rocky Mountain	50	17	Gyrodactylus cichlidarum	–	11410‡
				Gyrodactylus yacatli	KY489745	11424**
					KY489746	11424**
					KY489747, MN759052	11424**
					KY489748	11424**
					KY489749	11424**
					KY489750	11424**
					KY489756	11424**
2. North-West
Sinaloa (Sin.)	Oreochromis niloticus	302	20	Gyrodactylus cichlidarum	KY489681	11399‡
					KY489682	11399‡
					KY489677	11400‡
				Gyrodactylus yacatli	–	11426**
Sonora (Son.)	Oreochromis niloticus	121	33	Gyrodactylus cichlidarum	KY489672	11404‡
					KY489683	11403‡
					KY489694	11403‡
					KY489695	11405‡
					KY489696	11404‡
Jalisco (Jal.)	O. niloticus	147	27	Gyrodactylus cichlidarum	KY489678	11391‡
					KY489680	11391‡
					KY489676	11393‡
					KY489679	11393‡
					KY489671	11396‡
					KY489675	11396‡
					KY489690	11397‡
				Gyrodactylus yacatli	KY489744	11420**
					KY489755	11420**
					KY489757	11420**
					KY489753	11420**
					KY489754	11420**
3. East
Yucatán (Yuc.)	Oreochromis niloticus	43	37	Gyrodactylus cichlidarum	KY489668	–
					KY489669	–
					KY489670	–
					KY489673	–
					KY489674	–

Oreochromis PARGO-UNAM is a variety of 25% Rocky mountain (hybrid of O. aureus Steindachner x O. niloticus) and 25% red variant O. niloticus and 50% Florida red tilapia (hybrid of O. mossambicus x O. urolepis hornorum Trewavas). Rocky mountain (hybrid of O. aureus Steindachner x O. niloticus). Florida red tilapia (hybrid of O. mossambicus x O. urolepis hornorum Trewavas). CNHE ˗ Colección Nacional de Helmintos (Universidad Nacional Autónoma de México).

*Holotype, †Paratypes, **Hologenophore, ‡Vouchers.