Three rare and little known cryptogonimid digeneans from the sciaenid fish Sciaena umbra (L.) in the western Mediterranean

Abstract

Three species of cryptogonimid digeneans are redescribed from the gut of Sciaena umbra off Corsica. The systematics of the three species, Metadena pauli (Vlassenko, 1931), Paracryptogonimus aloysiae (Stossich, 1885) n. comb. and Anoiktostoma coronatum (Wagener, 1852), are discussed. The latter two species, which have not been reported for more than 100 years, have previously been confused and synonymised with each other. P. aloysiae, which is transferred to Paracryptogonimus from Anoiktostoma, is restricted to the rectum, whereas A. coronatum prefers the pyloric caeca and anterior intestine.

Metazoan parasites of brown meagre (Sciaena umbra L. 1758) caught near Gökçeada, Turkey

“…Paracryptogonimus aloysiae is the first species of this genus to be found in the Mediterranean region and is hostspecific to Sciaena umbra (3,5). This is the first detection of this species from Turkish coasts.…”

“…Brown meagre is cultured on a small scale in some Mediterranean countries such as Greece, and it may be a good alternative to gilthead sea bream and European sea bass (2). It shows a wide geographical distribution through the Mediterranean and Black Sea and along the Eastern Atlantic coast, from the English Channel to Senegal (1,3). Various studies were performed for the determination of the parasite fauna of brown meagre in different regions such as the western Mediterranean, Greece, and the Black Sea (2-6).…”

Two new cryptogonimid genera (Digenea, Cryptogonimidae) from Lutjanus bohar (Perciformes, Lutjanidae): analyses of ribosomal DNA reveals wide geographic distribution and presence of cryptic species

“…Interestingly, Anoiktostoma coronatum (Wagener, 1852) Stossich, 1899, a parasite of the sciaenid Sciaena umbra Linnaeus, 1758, also only inhabits the rectum of its host and is similar to C. thomasi in having a uterus that loops well into the forebody, oral spines and a trilobed or few lobed ovary (although some specimens may have an entire ovary (Bartoli and Gibson 1995)). This species can be distinguished from C. thomasi by lacking caeca that open via ani at the posterior end of the body, a prepharynx, having opposite to slightly oblique testes and in its restriction to Mediterranean sciaenids.…”

Digenean species diversity in teleost fish from a nature reserve off Corsica, France (Western Mediterranean), and a comparison with other Mediterranean regions

“…Bartoli et al Stephanostomum bicoronatum (Stossich 1883) W Stephanostomum cesticillum (Molin 1858) W Stephanostomum gaidropsari M Stephanostomum minutum (Looss 1901) M Stephanostomum pristis (Deslongchamps 1824) W Bray (2001) ACANTHOSTOMIDAE Poche, 1926 Anisocladium fallax (Rudolphi 1819) M Bartoli and Gibson (2000) Anisocladium gracile (Looss 1901) M Bartoli and Gibson (2000) Anisocoelium capitellatum (Rudolphi 1819) M Bartoli and Gibson (2000) Timoniella praeteritum (Looss 1901) M Maillard (1974) APOCREADIIDAE Skrjabin, 1942 Homalometron galaicus Sanmartin, Alvarez, Quinteiro andPaniagua, 1995 NEA+M Sanmartin et al (1995) Homalometron senegalense Fischthal and Thomas, 1972NEA+M Bartoli et al (2001) BUCEPHALIDAE Poche, 1907 Bucephalus baeri Maillard, 1976M Maillard (1976 Bartoli and Bray (1987) Metadena depressa (Stossich 1883) M Bartoli and Bray (1987) Metadena pauli (Vlassenko 1931) NEA+M Bartoli and Gibson (1995) Metadena phoceae Bartoli and Gibson, 2001 M Bartoli and Gibson (2001) Paracryptogonimus aloysiae (Stossich 1885) M Gibson (1995) DEROGENIDAE Nicoll, 1910 Arnola microcirrus (Vlassenko 1931 Bartoli and Gibson, 1989 NEA+M Gibson (1989) MONORCHIIDAE Odhner, 1911 Lasiotocus typicus (Nicoll 1912) NEA+M Gibson and Bray (1982) Genitocotyle mediterranea Bartoli, Gibson, and Riutort, 1994 NEA+M Bartoli et al (1994) Helicometra …”