A new aporocotylid, Skoulekia erythrini n. sp., is described from the heart, cephalic kidney and gill blood vessels of the common pandora Pagellus erythrinus (L.) collected from several localities of the western Mediterranean off Spain. The new species differs from the type- and only species of the genus, S. meningialis Alama-Bermejo, Montero, Raga & Holzer, 2011 in possessing a symmetrical body (vs laterally curved), short tegumental spines (3-4 vs 7-10 µm) without hooked ends, diffuse (vs conspicuous) oesophageal gland-cells, a relatively longer oesophagus, a testis that is shorter in relation to body length and a much smaller seminal vesicle (17-34 × 10-26 vs 33-101 × 27-97 μm). Elongated ellipsoidal eggs of S. erythrini n. sp. were found trapped in gill vessels in histological sections. Phylogenetic analyses based on partial 28S rDNA and ITS2 sequences supported the placement of the new species within Skoulekia and the close relationships of this genus with Psettarium Goto & Ozaki, 1929 and Pearsonellum Overstreet & Køie, 1986. Skoulekia meningialis is described from a new sparid host, Diplodus puntazzo (Walbaum), collected off Santa Pola, Spain. The new morphological data for the two Skoulekia spp. and a re-examination of three paratypes of S. meningialis pinpointed features amending both the description of S. meningialis and the generic diagnosis of Skoulekia.
- MeSH
- druhová specificita MeSH
- mezerníky ribozomální DNA genetika MeSH
- Perciformes anatomie a histologie klasifikace MeSH
- RNA ribozomální 28S genetika MeSH
- Trematoda anatomie a histologie klasifikace genetika MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Středozemní moře MeSH
- Názvy látek
- mezerníky ribozomální DNA MeSH
- RNA ribozomální 28S MeSH
A new species of the gobiid genus Gobius (Gobiidae, Perciformes), Gobius incognitus sp. nov. is described from the Mediterranean Sea, and its most morphologically similar species Gobius bucchichi is redescribed. The new species is distinguished from its congeners by: scales in lateral series 51-59; predorsal scales 25-35; opercle scaled in adults with 10-16 scales present; pectoral fin with ray count 18-20 and free tips on upper rays well developed and on the first ray longer than two thirds of the entire ray length; pelvic disc complete and with well-developed anterior membrane without lateral lobes; anterior oculoscapular canal with pore α at rear of orbit; oculoscapular row x(1) not extending forwards to pore β; suborbital row d discontinuous with large gap below suborbital rows 3 and 4; eye diameter 1·08-1·32 in snout length; by pigment rows on cheek and pigmentation on pectoral-fin base.
- Klíčová slova
- Adriatic Sea, Gobius incognitus sp. nov., Gulf of Lyon, gobies, systematics,
- MeSH
- druhová specificita MeSH
- fylogeneze * MeSH
- genetická variace MeSH
- Perciformes anatomie a histologie klasifikace genetika MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Středozemní moře MeSH
Two new nematode species of the family Cystidicolidae, each representing a new genus, were recovered from marine perciform fishes off New Caledonia, South Pacific: Ascarophisnema tridentatum n. gen., n. sp. from the stomach of the Japanese large-eye bream, Gymnocranius euanus (Günther) (Lethrinidae) and Metabronemoides mirabilis n. gen., n. sp. from the stomach of the painted sweetlip, Diagramma pictum (Thunberg) (Haemulidae). Ascarophisnema is characterized mainly by its cephalic structures (presence of two tooth-like projections on either side of the base of each pseudolabium, dorsal and ventral inner extensions of each pseudolabium recurved laterally in apical view, and submedian sublabia fused together dorsally and ventrally) and the presence of trident-like deirids, and Metabronemoides by its unique cephalic structures (presence of one dorsal and one ventral labium and four large dorsolateral and ventrolateral labia, and absence of sublabia). Rhabdochona gymnocranius (considered a species inquirenda) is provisionally transferred to the former genus as Ascarophisnema gymnocranius (Yamaguti, 1935) n. comb. To date, a total of seven species of cystidicolids are reported from marine fishes off New Caledonia.
- MeSH
- druhová specificita MeSH
- infekce hlísticemi řádu Spirurida parazitologie veterinární MeSH
- mikroskopie elektronová rastrovací MeSH
- mořská biologie MeSH
- nemoci ryb parazitologie MeSH
- Perciformes klasifikace parazitologie MeSH
- Spiruroidea klasifikace izolace a purifikace ultrastruktura MeSH
- žaludek parazitologie MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Nová Kaledonie MeSH
Current records of marine myxozoans from the coast of Africa are limited to the descriptions of 52 species from mostly Senegal, with a few from Tunisia and southern Africa. Between 1998 and 2000 several intertidal fishes from the southern Cape coast of South Africa were examined for the presence of myxozoan infections. Three new species, Ceratomyxa dehoopi sp. n., C. cottoidii sp. n. and C. honckenii sp. n. were identified from the gall bladders of Clinus superciliosus L., C. cottoides Valenciennes and Amblyrhynchotes honckenii (Bloch), respectively. A fourth new species Henneguya clini sp. n. was also identified from the gills and gill arches of C. superciliosus.
- MeSH
- druhová specificita MeSH
- Eukaryota cytologie patogenita MeSH
- Perciformes klasifikace parazitologie MeSH
- spory protozoální cytologie MeSH
- tělesné váhy a míry MeSH
- žábry parazitologie MeSH
- žlučník parazitologie MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
- Geografické názvy
- Jihoafrická republika MeSH
