Dasybatotreminae Bychowsky, 1957

Chero, Jhon D., Cruces, Celso L., Sáez, Gloria & Luque, José L., 2018, A new genus and species of the Dasybatotreminae Bychowsky, 1957 (Monogenea: Monocotylidae), parasitic on Hypanus dipterurus (Jordan & Gilbert) (Myliobatiformes: Dasyatidae) in the Southeastern Pacific Ocean off Peru, Zootaxa 4527 (3), pp. 347-356 : 349

Dasybatotreminae Bychowsky, 1957

Type genus: Dasybatotrema Price, 1938 Other genera: Anoplocotyloides Young, 1967 ; Mehracotyle Neifar, Euzet & Ben Hassine, 2002 ; Peruanocotyle n. gen.; Timofeevia Chisholm, Wheeler & Beverley-Burton, 1995 .

Amended diagnosis: Haptor with one central and seven or eight peripheral loculi. Marginal membrane present. Anchors (= hamuli) present; deep root elongate, greater than half the length of the radial septa or much shorter than width of marginal membrane; superficial root well developed or reduced. Hooks distributed in marginal membrane; hook shaft narrow. Marginal haptoral papillae present or absent. Papillary sclerites, septal sclerites, sinuous sclerotised septal ridge, dorsal haptoral unsclerotised protuberances and dorsal haptoral accessory sclerites absent. Numerous anterior gland duct openings present. Eye-spots present or absent. Intestinal ceca without diverticula or with large lateral and medial diverticula, not confluent posteriorly. Male copulatory organ sclerotized. Accessory piece present or absent. Accessory filament present or absent. Sheath absent. Common genital pore unarmed. Testis single or four. Ejaculatory bulb with bipartite internal seminal vesicle (=spherical internal chamber) present or absent. Ovary looping or not right intestinal cecum; proximal portion of ovary with clavate lobes or not; distal portion of ovary sinuous, strongly coiled or straight. Vagina single, vaginal wall sclerotized or unsclerotised; vaginal pore unarmed. Oötype with ascending limb only. Gill parasites of dasyatids, glaucostegids, rajids and rhinobatids.