Dilepididae, Fuhrmann, 1907

Mariaux, Jean & Georgiev, Boyko B., 2018, Seven new species of cestode parasites (Neodermata, Platyhelminthes) from Australian birds, European Journal of Taxonomy 440, pp. 1-42 : 28

Dilepididae indet.

Fig. 39

Material examined

AUSTRALIA: Queensland, Eidsvold, 25°22′ S, 151°5′ E, Sep. 1918, Thomas L. Bancroft leg. (AHC 36528).

Host

Corcorax melanorhynchos (Vieillot, 1817) ( Passeriformes , Corcoracidae ).

Site of infection

Small intestine.

Intensity

About 8 specimens.

Description

A few fragmented specimens of this species are found as co-parasites of Cracticotaenia adelaidae sp. nov. in our material from Queensland. Unfortunately, hooks are lost on the single available scolex. Longest fragment 13 mm, maximum width 1.4 mm at level of gravid proglottides. Up to 61 craspedote proglottides, wider than long except for the most gravid ones. Scolex not clearly separated from strobila, 227 in diameter. Suckers rounded 97–115 in diameter. Rostellar pouch very glandular, 167 × 70, extending past posterior margin of suckers. Rostellum muscular, with well-marked terminal pad, 132 × 72. Neck not marked. Genital pores, opening laterally and very anteriorly, at about 15% of lateral proglottis margin, alternating irregularly in short series. Ventral osmoregulatory canals connected posteriorly in each proglottis by transverse anastomosis. Genital ducts passing between osmoregulatory canals. Testes 17–23 (19.7, n = 26) in number, in a single layer and one continuous posterior field, extending antero laterally up to level of vitellarium. Cirrus-sac short and weak, 76–92 × 30–42, not reaching poral osmoregulatory canals. Cirrus armed with a small tuft of setae, often lost in our material. Vitellarium central, compact. Ovary anterior transversely elongated. Seminal receptacle rounded, lateral to vitellarium. Vagina posterior to male pore. Uterus initially labyrinthic. No fully gravid proglottides observed.

Figures

Figs 39–41. 39. Dilepididae genus sp. Hooks. 40. Passerilepis sp. Hooks. 41. Cracticotaenia fieldingi (Maplestone & Southwell, 1923) Hooks. Scale bars: 39–41 = 20 µm.