Endohelminths of a Snake Mackerel, Gempylus serpens (Trichiuroidea: Gempylidae), from the Gulf of Mexico

Endohelminths are reported from a female snake mackerel, Gempylus serpens (Trichiuroidea: Gempylidae), captured from a depth of 61 m in the Gulf of Mexico 140 km south of the mouth of Mobile Bay, AL, in August 1998. A diverse endohelminth parasite fauna was found: 29 plerocercoid type I tetraphyllideans from the lower intestine; 4 didymozoid metacercariae allocated to the collective group Monilicaecum and one didymozoid metacercaria of the collective group Torticaecum from the pyloric cecum; one juvenile Gonocerca phycidis from the stomach; and 5 larvae (L3 stage) comprising 3 species of Anisakis from the pyloric cecum. These nematodes were identified as species of Anisakis due to the presence of an oblong ventriculus lacking an appendix, no intestinal cecum or interlabia, 3 lips with dentigerous ridges, and an excretory pore located between the lateroventral lips. Differences in overall size and in the lengths of the ventriculus and esophagus in relation to total body length were used to distinguish the 3 species of Anisakis collected. Seven specimens of a possibly unnamed species of parasitic copepod representing Bomolochus infected the gill chamber. Stomach contents included 6 early-juvenile flatfish (Pleuronectiformes). All of the helminths are measured and illustrated, and for some of the parasites recovered, we are unaware of any reports from this host species

PCR-based detection of mobile genetic elements in total community DNA

A

Parasites of non-native freshwater fishes introduced into england and wales suggest enemy release and parasite acquisition

When non-native species are introduced into a new range, their parasites can also be introduced, with these potentially spilling-over into native hosts. However, in general, evidence suggests that a high proportion of their native parasites are lost during introduction and infections by some new parasites from the native range might occur, potentially resulting in parasite spill-back to native species. These processes were investigated here using parasite surveys and literature review on seven non-native freshwater fishes introduced into England and Wales. Comparison of the mean numbers of parasite species and genera per population for each fish species England andWaleswith their native ranges revealed\9 % of the native parasite fauna were present in their populations in England and Wales. There was no evidence suggesting these introduced parasites had spilled over into sympatric native fishes. The non-native fishes did acquire parasites following their introduction, providing potential for parasite spill-back to sympatric fishes, and resulted in non-significant differences in overall mean numbers of parasites per populations between the two ranges. Through this acquisition, the non-native fishes also had mean numbers of parasite species and genera per population that were not significantly different to sympatric native fishes. Thus, the non-native fishes in England and Wales showed evidence of enemy release, acquired new parasites following introduction providing potential for spill-back, but showed no evidence of parasite spill-over

Patagifer lamothei n. sp. (Digenea: Echinostomatidae: Nephrostominae) from the white ibis Eudocimus albus (Threskiornithidae) from Texas, USA Patagifer lamothei n. sp. (Digenea: Echinostomatidae: Nephrostominae) del ibis blanco Eudocimus albus (Threkiorni

Abstract. During a study of the endohelminths of wading birds from the Texas Gulf coast, 12 specimens of an undescribed species of Patagifer Dietz, 1909 (Echinostomatidae: Nephrostominae) were collected from 2 of 8 white ibis, Eudocimus albus (Linnaeus) (Threskiornithidae), from the Galveston and Brazos County areas of Texas, USA. Patagifer lamothei n. sp. can be distinguished from P. bilobus (Rudolphi, 1819), P. brygooi Key words: Digenea, Echinostomatidae, Patagifer lamothei n. sp., Eudocimus albus, white ibis, Texas, USA. Resumen. En un estudio de endohelmintos de aves de los humedales de la costa de Texas, se recolectaron 12 ejemplares de una especie no descrita de Patagifer Dietz, 1909 (Echinostomatidae: Nephrostominae) en 2 ibis blancos de 8 examinados Eudocimus albus (Linnaeus) (Threskiornithidae) procedentes de los condados de Galveston y Brazos, Texas, EUA. Patagifer lamothei n. sp. se puede distinguir de P. bilobus (Rudolphi, 1819), P. brygoo

Haematotrephus inflatocoelium Oshmarin 1963

<i>H</i>. <i>inflatocoelium</i> Oshmarin, 1963 <p> <b>Type host.</b> Common ringed plover, <i>Charadrius hiaticula</i> Linnaeus (Charadriiformes: Charadriidae). <b>Type locality.</b> Primorskii Krai, Russian Federation.</p> <p> <b>Remarks.</b> This species has an unusual distribution of the vitelline fields, which terminate posteriorly about two thirds of the distance down the body. This distribution may not be typical of the species. Rudimentary oral sucker present—Oshmarin (1963).</p>Published as part of <i>Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, pp. 1-100 in Zootaxa 4053 (1)</i> on page 54, DOI: 10.11646/zootaxa.4053.1.1, <a href="http://zenodo.org/record/237117">http://zenodo.org/record/237117</a&gt

Ophthalmophagus nasicola Witenberg 1923

<i>O</i>. <i>nasicola</i> Witenberg, 1923 (& 1926) <p> <b>Type host.</b> Water rail, <i>Rallus aquaticus</i> Linnaeus (Gruiformes: Rallidae).</p> <p> <b>Type locality.</b> Russian Federation; specific type locality unknown.</p> <p> <b>Additional hosts.</b> Glossy ibis, <i>Plegadis falcinellus</i> Linnaeus (Pelicaniformes: Threskiornithidae); little ringed plover, <i>Charadrius dubius curonicus</i> Gmelin (Charadriiformes: Charadriidae) (northern subspecies of <i>Charadrius dubius</i> Scopoli)—(Yamaguti 1958, 1971).</p> <p> <b>Additional locality.</b> Japan; specific locality unknown—Yamaguti (1971).</p> <p> <b>Previously proposed synonym.</b> <i>Ophthalmophagus massinoi</i> Witenberg, 1926 — Bashkirova (1950).</p> <p> <b>Remarks.</b> Considered a possible synonym of <i>O</i>. <i>singularis</i> (Stossich, 1902) by Dubois (1959). Joyeux & Baer (1927) considered this to be a species of <i>Spaniometra</i>. No oral or ventral sucker described—Witenberg (1923, 1926).</p>Published as part of <i>Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, pp. 1-100 in Zootaxa 4053 (1)</i> on page 79, DOI: 10.11646/zootaxa.4053.1.1, <a href="http://zenodo.org/record/237117">http://zenodo.org/record/237117</a&gt

Cyclocoelum vicarium Arnsdorff 1908, n. comb.

<i>S</i>. <i>vicarium</i> (Arnsdorff, 1908) n. comb. <p> <b>Type host.</b> Purple sandpiper, <i>Calidris maritima</i> Brünnich (Syn. <i>Arquatella maritime</i> [Gmelin]) (Charadriiformes: Scolopacidae).</p> <p> <b>Type locality.</b> Labrador, Canada.</p> <p> <b>Additional hosts.</b> Eurasian curlew, <i>Numenius arquata</i> (Linnaeus) and dunlin, <i>Calidris alpina</i> (Linnaeus) (Syn. <i>Tringa alpina</i> Linnaeus) (Charadriiformes: Scolopacidae)— Yamaguti (1971); common greenshank, <i>Tringa nebularia</i> (Gunnerus) (Charadriiformes: Scolopacidae)— Bourgat <i>et al</i>. (1999).</p> <p> <b>Additional localities.</b> Europe, specific locality unknown—Yamaguti (1971); Togolese Republic (Togo), Africa—Bourgat <i>et al</i>. (1999).</p> <p> <b>Previously proposed synonym.</b> <i>Cyclocoelum mehrii</i> Khan, 1935 (= <i>Selfcoelum mehrii</i> [Khan, 1935] n. comb.)— Bashkirova (1950); Dubois (1959).</p> <p> <b>Remarks.</b> This species was originally described as <i>Monostomum vicarium</i> Arnsdorff, 1908. It was redescribed as <i>Cyclocoelum vicarium</i> (Arnsdorff, 1908) by Harrah (1922). It was considered a synonym of <i>Cyclocoelum ovopunctatum</i> Stossich, 1902 (= <i>Selfcoelum ovopunctatum</i> [Stossich, 1902] n. comb.) by Bashkirova (1950) and Dubois (1959), and of <i>Cyclocoelum obscurum</i> (Leidy, 1887) by Joyeux & Baer (1927). The original description of this species by Arnsdorff (1908) apparently was based on two separate species representing different genera in two separate subfamilies. Figure 1 of the original description likely represents <i>Selfcoelum vicarium</i> n. comb. (Syn. <i>Monostomum vicarium</i>) because it has an intertesticular ovary forming a triangle with the testes (Cyclocoelinae), a genital pore that is postpharyngeal and the vitelline fields are not confluent posteriorly (= <i>Selfcoelum</i>). The second possible species, as shown in Fig. 2, appears to have a pretesticular ovary forming a triangle with the testes (Haematotrephinae), a genital pore that is postpharyngeal, vitelline fields that are not confluent posteriorly and the testes are oblique, and it would likely be assigned to <i>Haematotrephus</i>. However, with the lack of information concerning this second species, we have not distinguished it as a distinct species and have not included it in our key to the species of <i>Haematotrephus</i>. No oral or ventral sucker described—Arnsdorff (1908); Kossack (1911) and Bashkirova (1950).</p>Published as part of <i>Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, pp. 1-100 in Zootaxa 4053 (1)</i> on page 31, DOI: 10.11646/zootaxa.4053.1.1, <a href="http://zenodo.org/record/237117">http://zenodo.org/record/237117</a&gt

Morishitium rauschi Gupta & Gupta 1979

<i>M</i>. <i>rauschi</i> Gupta & Gupta, 1979 <p> <b>Type host.</b> Common snipe, <i>Gallinago</i> <i>gallinago</i> (Linnaeus) (Syn. <i>Capella gallinago</i> Linnaeus) (Charadriiformes: Scolopacidae).</p> <p> <b>Type locality.</b> Kanpur, Uttar Pradesh, India.</p> <p> <b>Remarks.</b> No oral or ventral sucker present—Gupta & Gupta (1979).</p>Published as part of <i>Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, pp. 1-100 in Zootaxa 4053 (1)</i> on page 75, DOI: 10.11646/zootaxa.4053.1.1, <a href="http://zenodo.org/record/237117">http://zenodo.org/record/237117</a&gt

Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007

Dronen, Norman O., Blend, Charles K. (2015): Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007. Zootaxa 4053 (1): 1-100, DOI: 10.11646/zootaxa.4053.1.

Cyclocoelum halcyonis MacCallum 1921, n. comb.

<i>S</i>. <i>halcyonis</i> (MacCallum, 1921) n. comb. <p> <b>Type host.</b> Rudy kingfisher, <i>Halcyon coromando</i> (Latham) (given as <i>Halcyonis coromando</i> by MacCallum 1921), (Coraciiformes: Halcyonidae).</p> <p> <b>Type locality.</b> Luzon, Republic of the Philippines.</p> <p> <b>Remarks.</b> This species was originally described as <i>Cyclocoelum halcyonis</i> MacCallum, 1921 but was considered a synonym of <i>Cyclocoelum obscurum</i> (Leidy, 1887) by Tubanqui (1932), Witenberg (1928), Bashkirova (1950) and of <i>C</i>. <i>mutabile</i> (Zeder, 1800) by Joyeux & Baer (1927). MacCallum (1921) provided a minimal description of this species and a figure of a longitudinal section (separating the ventral half from the dorsal half) of an adult. It appears as if MacCallum may have followed Braun (1901), who mistakenly considered the pharynx of cyclocoelids to be an oral sucker because what appears to be the muscular pharynx in Fig. 84 is labelled “m”, presumably referring to the mouth, and a much smaller structure posterior to it that appears to be the genital pore is labelled as the pharynx. MacCallum (1921) also apparently considered the ovary to be intertesticular, forming a triangle with the testes as in <i>Monostomum mutabile</i> (<i>= Cyclocoelum mutabile</i>) (Cyclocoelinae). According to MacCallum (1921) this species has the genital pore in the region of the pharynx similar to that of species of <i>Cephalogonimus</i> Poirier, 1886, which suggests that this species has a prepharyngeal genital pore and vitelline fields that are not confluent posteriorly (“The vitellarium consists of a narrow line of glands which, like the intestine, surround the margin of the body, except a small portion at the anterior end.”), which would place it in <i>Cyclocoelum</i>. However, the placement of the genital pore is postpharyngeal in Fig. 84, which would place this species in <i>Selfcoelum</i>. Unlike species of <i>Cyclocoelum</i>, Fig. 84 of the original description, although somewhat unclear, appears to show that the intertesticular ovary may be nearly in a straight line with the tandem testes (Hyptiasminae). If that is the case and the genital pore is prepharyngeal, this species would be placed in <i>Prohyptiasmus</i>, while if the genital pore is postpharyngeal it would be assigned to <i>Morishitium</i>. Given the available information, this species is tentatively placed in <i>Selfcoelum</i> because the ovary appears to be intertesticular forming a triangle with the testes (Cyclocoelinae), the genital pore is postpharyngeal and the vitelline fields are not confluent posteriorly. Until the position of the ovary relative to the testes is better documented, we recommend that this species be considered in any comparison of specimens in Cyclocoelinae or Hyptiasminae (where the vitelline fields are not confluent posteriorly) to existing species of <i>Cyclocoelum</i>, <i>Selfcoelum</i>, <i>Prohyptiasmus</i> and <i>Morishitium.</i> This species could not be included in our key to species of <i>Selfcoelum</i> because of the incomplete description and lack of a suitable illustration. No oral or ventral suckers described—MacCallum (1921).</p>Published as part of <i>Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, pp. 1-100 in Zootaxa 4053 (1)</i> on page 21, DOI: 10.11646/zootaxa.4053.1.1, <a href="http://zenodo.org/record/237117">http://zenodo.org/record/237117</a&gt