Armadoatrium Tkach, Chermak & Olson, 2023

Tkach, Vasyl V., Chermak, Taylor P., Patitucci, Kaylyn K., Greiman, Stephen E., Binh, Tran Thi & Olson, Peter D., 2023, Jumping continents and major host lineages: phylogeny and diversity of the enigmatic Cryptotropidae (Platyhelminthes: Digenea), Zoological Journal of the Linnean Society 199 (2), pp. 533-552 : 538

Armadoatrium Tkach, Chermak & Olson gen.nov.

Diagnosis: Body linguiform, slender. Tegument almost entirely covered with small spines, which diminish somewhat in size towards the posterior end of the body. Oral sucker well developed, subterminal. Prepharynx absent. Pharynx well developed. Oesophagus long. Intestinal bifurcation in posterior forebody. Caeca extend posteriorly well past ventral sucker, but do not reach testes. Genital atrium dorso-sinistral, extracaecal, in ventral sucker region. Genital atrium aperture surrounded by digitiform spines.

Two testes, nearly opposite, slightly diagonal, in posterior third of body. Copulatory pouch large, comma-shaped, containing winding seminal vesicle, ejaculatory canal and prostatic glands. Everted cirrus not observed. Proximal end of copulatory pouch extends posteriorly far beyond ventral sucker. Fibrous male accessory pouch (stylet pouch), containing protractible stylet-like rod, situated postero-sinistrally to ventral sucker, its proximal end immediately posterior to ventral sucker.

Ovary subspherical, situated dextrally to proximal end of copulatory pouch, between copulatory pouch and seminal receptacle. Seminal receptacle voluminous, immediately posterior to ovary. Vitellarium consisting of numerous small follicles of unequal size and shape, distributed peripherally around central region of body occupied by gonads, uterus and terminal genitalia. Vitelline follicles reach posterior end of body and mid-distance between suckers anteriorly. Mehlis’ gland situated between less testes and proximal end of copulatory pouch. Laurer’s canal not observed. Uterus ventral to gonads, extending posteriorly between testes, occupying space between gonads and expanding posteriorly between testes and laterally beyond testes. Metraterm with weak musculature. Uterine loops not very numerous, mainly in hindbody, passing between testes and almost reaching posterior end of body. Uterus containing numerous operculate eggs. Excretory pore terminal. Excretory vesicle not fully observed, its stem reaching at least mid-level of testes; remainder of excretory vesicle is obscured by uterus.

In intestine of bats, Philippines.

Type species: Armadoatrium bushae ( Chermak & Tkach 2022) comb. nov.

ZooBank registration: urn:lsid:zoobank.org:act:D716D46B-5801-45E0-B52B-48173299FA2B .