Progonus muelleri

• Main Authors: Bouguerche, Chahinez, Huston, Daniel C., Karlsbakk, Egil, Ahmed, Mohammed, Holovachov, Oleksandr
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2024
• Subjects: Biodiversity; Taxonomy; Animalia; Platyhelminthes; Trematoda; Plagiorchiida; Derogenidae; Progonus; Progonus muelleri; Aasiaat; Arctic; Egedesminde; Greenland; Greenland cod; Svalbard; Spitsbergen
• Online Access: https://doi.org/10.5281/zenodo.12751467; http://treatment.plazi.org/id/3A3487B25535FFE2FC88F9F9FC5DFAEB

Progonus muelleri (Levinsen, 1881) (Figs. 5A and 5B) Type-host : Myoxocephalus scorpius (as Cottus scorpius ) (Perciformes: Cottidae), shorthorn sculpin [35]. Other hosts : Gadus macrocephalus (as Gadus ovak ) (Gadiformes: Gadidae), Greenland cod [35]. Type-locality : Aasiaat [Egedesminde], Greenland [35]. Site in host : Stomach. Deposited examined material : Whole mounts : Two specimens of P. muelleri ex Myoxocephalus scorpius from Aasiaat [Egedesminde], Greenland, deposited at the Natural History Museum of Denmark (SNM), Copenhagen, Denmark (NHMD-114950/ old catalogue number ZMUC-TRE-000032), Paralectotypes. Transverse sections : T. Odhner’ s collections in the Invertebrates collection of the Swedish Museum of Natural History (SMNH), Stockholm, Sweden; two specimens ex Myoxocephalus scorpius from Spitsbergen, Svalbard, Norway, Arctic (SMNH 114584–114585) (identified and labeled by T. Odhner as P. muelleri ); One specimen from the same host and locality (SMNH 114587) (identified and labeled by T. Odhner as Genarches muelleri (Levinsen, 1881)). Longitudinal sections : T. Odhner’ s collections in the Invertebrates collection of the SMNH; one specimen ex Abbreviations: CM, Central Mediterranean. Myoxocephalus scorpius from Spitsbergen, Svalbard, Norway, Arctic (SMNH 114586) (identified and labeled by T. Odhner as P. muelleri ). Additional material examined for comparison : Transverse sections : T. Odhner’ s collections in the Invertebrates collection of the SMNH: four specimens of D. varicus s. s . ex Limanda limanda from Gullmarsfjorden, Kristineberg, Sweden, NEA (SMNH 114554–114557) (identified and labeled by T. Odhner as D. varicus ). Redescription: Body elongated, fusiform, rounded anteriorly (Fig. 5A). Tegument smooth, unarmed. Pre-oral lobe present. Oral sucker subterminal, small, rounded. Prepharynx not observed. Pharynx subglobular. Oesophagus not observed. Intestinal bifurcation in anterior third of forebody. Caeca wide, extending to and joining in anterior hindbody, forming cyclocoel, approximatively at ...