Galactosomum erinaceum Bittner & Sprehn 1928

• Main Authors: Karar, Yasser F. M., Blend, Charles K., Dronen, Norman O., Adel, Asmaa
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2023
• Subjects: Biodiversity; Taxonomy; Animalia; Platyhelminthes; Trematoda; Plagiorchiida; Heterophyidae; Galactosomum; Galactosomum erinaceum; North Atlantic
• Online Access: https://doi.org/10.5281/zenodo.7937288; http://treatment.plazi.org/id/6E5B321FFFAFFFFC74ECFDD1C045F926

Galactosomum erinaceum (Poirier, 1886) Bittner & Sprehn, 1928 (Fig. 9) (Syns. Distomum erinaceum Poirier, 1886; Distoma erinaceum Poirier, 1886; Distoma [ Dicrocoelium ] erinaceum [Poirier, 1886] Stossich, 1892; Astiotrema erinacea [Poirier, 1886] Stossich, 1904 [Malformed suffix]; Astiotrema erinaceum [Poirier, 1886] Stossich, 1904) Record. 1. Poirier (1886). Remarks. Poirier (1886) described D . erinaceum to accommodate some immature specimens liberated from cysts and collected from the intestine of the short-beaked common dolphin, Delphinus delphis Linnaeus (Artiodactyla: Delphinidae), in European waters of the North Atlantic Ocean. Stossich (1892) moved D . erinaceum into the subgenus Dicrocoelium Dujardin, 1845 within Distoma Retzius, 1786. Looss (1899) noted that the immature specimens of D . erinaceum highly corresponded to the two known members of Astia Looss, 1899 nec Koch, 1879 (= Astiotrema ) (i.e., the type-species A . reniferum and A . impletum ) in all recognizable structural details, but no reassignment of D . erinaceum within this genus was proposed. Stossich (1904) reassigned D . erinaceum within Astiotrema as A . erinaceum and Nicole (1923) also followed this same approach. Jägerskîld (1908) and Odhner (1911) pointed out the similarity and close relationship of this form with monostomids (i.e., members of Monostoma Zeder, 1800 [syn. Monostomum Creplin, 1829]) such as Galactosomum (particularly Galactosomum lacteum [Jägerskîld, 1896] Looss, 1899) and other closely related forms despite the difference in host groups; A . erinaceum has been reported from a marine mammalian host ( D . delphis ) whereas adult worms of Galactosomum are parasites of birds and their metacercariae are encysted in fishes (see Jägerskîld 1908). Bittner & Sprehn (1928) investigated A . erinaceum and concluded its placement in Galactosomum as a recognized species based on its distinctive marine mammalian host. Reassignment of A . erinaceum to Galactosomum has been considered by subsequent authors who differ in the ...