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1. A new species of Lernanthropus (Copepoda: Lernanthropidae) parasite of Cynoscion striatus (Pisces: Sciaenidae) from Argentinean waters, and new records of Lernanthropus trachuri

Creator:
Tomás, Juan and Etchegoin, Jorge Alejandro
Format:
print
Type:
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Subject:
Lernanthropus cynoscicola, parasitic copepoda, Cynoscion striatus, sciaenid fishes, Argentina, and Lernanthropus trachuri
Language:
English
Description:
Lernanthropus cynoscicola sp.n. (Copepoda: Lernanthropidae), a parasite of sciaenid fish Cynoscion striatus Cuvier from the coast of Argentina, is described and illustrated. The new species resembles five other species of Lernanthropus in general body shape, but it can be distinguished from them by the relatively short and tapered dorsal plate of the 4th leg-bearing segment, the length of the 4th legs being approximately equal to the rest of the body, and other differences. L. trachuri Brian, 1903 is reported for the first time in Argentina on Trachurus lathami from the coast of the Buenos Aires province.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Digenetic trematodes parasitic on Engraulis anchoita (Pisces: Engrauiidae) from Argentina and Uruguay

Creator:
Timi, Juan Tomás, Martorelli, Sergio Roberto, and Sardella, Norma Haydeé
Format:
print
Type:
model:internalpart and TEXT
Subject:
Engraulis anchoita, parasites, Parahemiurus rnerus, Lecithochirium microstomum, Cardiocephaloides sp., Rhipidocotyle sp., Argentina, and Uruguay
Language:
English
Description:
A total of 2,086 specimens of Engraulis anchoita Hubbs ct Marini (Pisces: Engrauiidae), from waters off Argentina and Uruguay were examined lor parasitic digeneans. Four species of digeneans were found, Parahemiurus merits (Linton, 1910) (adult) in the stomach; Lecithochirium microstomum Chandler, 1935 (non-ovigerous and ovigerous juveniles) in the swimbladder; Cardiocephaloides sp. (metacercaria) in the eyes and Rhipidocotyle sp. (metacercaria) in the musculature. These four species are recorded for the first time as parasites of E. anchoita.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Echinobothrium megacanthum sp. n. (Cestoda: Diphyllidea) from the eagle ray Myliobatis goodei (Chondrichthyes: Rajoidei) from the Patagonian shelf of Argentina

Creator:
Ivanov, Veronica A. and Campbell, Ronald A.
Format:
print
Type:
model:internalpart and TEXT
Subject:
Diphyllidea, Echinobothrium, taxonomy, Myliobatis goodei, and Argentina
Language:
English
Description:
A new species of Echinobothrium is described from the spiral intestine of the eagle ray Myliobatis goodei Garman
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. First record of the genus Syncuaria (Nematoda: Acuariidae) in Argentina, with description of a new species

Creator:
Digiaiii, Maria Celina
Format:
print
Type:
model:internalpart and TEXT
Subject:
Syncuariaplegadisi, Syncuaria diacantha, Nematoda, Acuariidae, Threskiomithidae, Argentina, and host specificity
Language:
English
Description:
The nematode genus Syncuaria Gilbert, 1927 (Acuariidae) is reported for the first time from Argentina with two species parasitic in Threskiomithidae. Syncuaria plegadisi sp. n. from the white-faced ibis, Ptegadis chihi (Vieillot), is described and figured. The new species differs from known species of Syncuaria by the following characters: absence of lateral alae; cephalic cordons narrow, consisting of cuticular plates dorsally and ventrally invaginated forming a groove; presence of cephalic spines; spicules with simple, rounded distal ends; left spicule two to three times longer than right one; female tail dorsally bent and distance between vulva and anus comparable to tail length. Syncuaria diacantha Petter, 1961, a common parasite of the roseate spoonbill, Plalalea ajaja L., is reported for the first time from Argentina and briefly described. SEM micrographs for both species are provided. Both S. plegadisi sp. n. and S. diacantha were found to co-oeeur in the same locality, but not on the same host, suggesting a high degree of host specificity.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

5. Four species of digcneans, including Allocreadium patagonicum sp. n. (Allocreadiidae), from freshwater fishes of Patagonia, Argentina

Creator:
Shimazu, Takeshi, Urawa, Shigehiko, and O. Coria, Claudio
Format:
print
Type:
model:internalpart and TEXT
Subject:
Digenea, Allocreadium patagonicum, freshwater fishes, Patagonia, and Argentina
Language:
English
Description:
Four species of adult digeneans arc reported from freshwater fishes of two lakes in Neuquén, Patagonia, Argentina. Allocreadium patagonicum sp. n. (Allocreadiidae) is described from the intestine of Percichthys colhuapiensis MacDonagh and Percichthys trucha (Cuvier et Valenciennes) (Percichthyidae) from Lago Aluminé. Three species rcdescribed are: Acanthostomoides apophalliformis Szidat, 1956 (Acanthostomidac) from the intestine of P. colhuapiensis and P. trucha from Lago Aluminé and of Salmo trutta (Linnaeus) (Salmonidae) from Lapo Muechulafquén; Deropegus patagonicus (Szidat, 1956) comb. n. (= Genarches patagonicus Szidat, 1956) (Derogenidae) from the stomach of P. colhuapiensis, P. trucha, Oncorhynchus mykiss (Walbaum) (Salmonidae) and Salvelinus fontinalis (Mitchill) (Salmonidae) from Lago Aluminé and of S. trutta from Lago l luechulafquén; and Austrocreadium papilliferum Szidat, 1956 from the intestine of P. trucha from Lago Aluminé. The genus Polylekithum Arnold, 1934 is considered a synonym of the genus Allocreadium Looss, 1900. The genus Austrocreadium Szidat, 1956 is removed to the family Homalomelridae.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

6. Parasitic copepods of the narrownose smooth-hound shark Mustelus schmitti (Chondrichthyes: Triakidae) from Argentina

Creator:
Etchegoin, Jorge A. and Ivanov, Veronica A.
Format:
print
Type:
model:internalpart and TEXT
Subject:
parasitic copepods, Mustelus schmitti, Nessipus orientalis, Perissopus oblongus, Lernaeopoda galei, and Argentina
Language:
English
Description:
The parasitic copepod fauna of 182 specimens of Mustelus schmitti Springer from the coast of Mar del Plata, Argentina was investigated. Three species of parasitic copepods were identified: Nessipus orientalis Heller, 1865 from the buccal cavity, Perissopus oblongus (Wilson, 1908) from the edge of pectoral, pelvic, dorsal, anal and caudal fins and in claspers, and Lernaeopoda galei К rayer, 1837 from the base of the pectoral fins. N. orientalis was most common being present the entire year, while P. oblongus and L. galei occurred seasonally with low prevalence and mean intensity. There were differences in the site of infection by these copepods and variations in the relationship between prevalence and mean intensity and host size and seasonality. These parameters were unrelated to host sex. Our data suggest that the structure of this parasite community is a result of a complex of biotic and abiotic factors, such as temperature, spawning and breeding preferences of the host, and overlapping in the distribution of different shark species. This is the first report of N. orientalis in Argentinean waters.
Rights:
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7. Wardium paucispinosum sp. n. (Eucestoda: Hymenolepididae), parasite of Larus maculipennis (Aves: Laridae) in Mar dcl Plata, Argentina; with comments on Wardium semiductilis (Szidat, 1964) comb. n.

Creator:
Labriola, Juliana Beatrix and Suriano, Delia Mabel
Format:
print
Type:
model:internalpart and TEXT
Subject:
Eucestoda, Argentina, Laridae, Wardium, and Hymenolepididae
Language:
English
Description:
A new species Wardium paucispinosum (Eucestoda: Hymenolepididae) parasite from the intestine of Larus maculipennis (Lichtenstein) from Mar del Plata, Argentina is described. The distinctive features of the new species are: strobilar length 52.8 mm; 10 aploparaksoid rostellar hooks, 14 (12-17) pm long; ratio between cirrus pouch length and mature proglottid width (CPL/MPW) 0.38 (0.27-0.50); regular cylindrical evaginated cirrus, 90 x 10 pm, with distal end without spines and proximal and medium thirds covered with spines 7 pm long; simple tubular membranous vagina, 110 x 10 pm, without sclcrotised portions and sphincters; eggs fusiform, 77 x 44 pm. Besides, llymenolepis semiductilis Szidat, 1964, from the intestine of Larus dominicanus and L. maculipennis from Santa Fé, Argentina is transferred to the genus Wardium Mayhew, 1925, based on the presence and shape of the rostellar hooks.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public