A new species of Thelandros (Nematoda, Oxyuroidea, Pharyngodonidae) in Leiolepis reevesi (Sauria, Agamidae) from Vietnam

Thelandros vietnamensis sp. nov. (Oxyuroidea, Pharyngodonidae) from the intestines of an agamid lizard, Leiolepis reevesi, collected in Vietnam is described and illustrated. Thelandros vietnamensis represents the 3rd Oriental species to be described and is distinguished from all other species by length of spicule (485–536 μm) of the male; all other species have spicules less than 200 μm.     

A new species of Pharyngodon (Nematoda, Pharyngodonidae) and other helminths in Cyrtodactylus louisiadensis (Sauria, Gekkonidae) from Papua New Guinea

Pharyngodon novaeguineae sp. nov. from the large intestines of Cyrtodactylus louisiadensis (Sauria, Gekkonidae), from Papua New Guinea is described and illustrated. Pharyngodon novaeguineae represents the 36th species assigned to the genus and is separated from its congeners based upon absence of a spicule, egg morphology, and excretory pore position.     

Gastrointestinal helminths from two species of skink from Papua New Guinea, including two new species of Skrjabinodon (Nematoda, Pharyngodonidae)

Skrjabinodon derooijae sp. nov. from the large intestine of Papuascincus stanleyanus (Scincidae) and Skrjabinodon sheai sp. nov. from the large intestine of Emoia pallidiceps (Scincidae) from Papua New Guinea are described and illustrated. Skrjabinodon derooijae sp. nov. and S. sheai sp. nov. represent the 27th and 28th species assigned to the genus and the 8th and 9th species from the Australo-Papuan Region. The new species differ from other species assigned to Skrjabinodon by egg and female tail morphology. The eggs of S. derooijae are spindleform with one truncate end and the female tail bears 13–16 tail spines in a defined pattern. The eggs of S. sheai are lagenoid and the female tail bears 12–16 tail spines in a random pattern. In addition to the new species, E. pallidiceps harboured Physalopteroides milnensis and P. stanleyanus harboured Mesocelium monas and Oswaldocruzia bakeri.     

Two new species of Pharyngodonidae (Nematoda,Oxyuroidea) in <Emphasis Type="Italic">Gekko ulikovskii</Emphasis> from Vietnam

Pharyngodon duci sp. nov. and Spauligodon vietnamensis sp. nov. (Nematoda, Pharyngodonidae) from the large intestine of a gecko, Gekko ulikovskii (Sauria, Gekkonidae), from Vietnam are described and illustrated. Pharyngodon duci is the 35th species assigned to the genus and is separated from its congeners based upon the lack of a spicule, egg morphology, mouth morphology and cloacal lip morphology. Spauligodon vietnamensis is the 44th species assigned to the genus and is separated from its congeners by the lack of a spicule, egg morphology, and tail filament morphology.     

A new species of Trichostrongylus (Nematoda, Trichostronglyoidea) parasitizing the subterranean rodent Ctenomys talarum (Rodentia, Octodontidae) from Mar de Cobo, Argentina

A new nematode species, Trichostrongylus duretteae sp. nov., found in the small intestine of Ctenomys talarum from Argentina is described. The new species more closely resembles T. suis lwanitsky, 1930 a parasite of Sus scrofa in the USSR. However, the new species can be distinguished by the morphology of male genital bursa: Rays 6 distant from rays 8 and a larger dorsal ray in relation to the length of rays 2 to 8. The present finding is the first record of the genus Trichostronglyus in rodents of the family Octodontidae.     

New host and distribution records of Pelecitus fulicaeatrae (Diesing, 1861) (Nematoda, Onchocercidae)

The nematode Pelecitus fulicaeatrae (Diesing, 1861) (Onchocercidae, Dirofilariinae) was found in the leg of a silvery grebe Podiceps occipitalis (Garnot, 1826) (Aves, Podicipediformes) at Puerto Madryn, Argentina. The specimens redescribed in this note are based on 7 females and 3 males. This is the first Argentinean record for this species and the second for South America, and represents the southern-most record of a species from this genus.     

A new species of genus <Emphasis Type="Italic">Hysterothylacium</Emphasis> Ward et Magath, 1917 (Nematoda,Anisakidae) from <Emphasis Type="Italic">Liparis tanakae</Emphasis> (Scorpaeniformes,Liparidae) from the Yellow Sea,China

A new anisakid nematode, Hysterothylacium liparis sp. nov., is described from the intestine and stomach of the fish, Liparis tanakae (Gilbert et Burke, 1912) (Scorpaeniformes, Liparidae), a fish endemic to the Yellow Sea, China. The new species can be distinguished from the congeners by the absence of lateral alae, the length of the intestinal caecum (1.94–3.35 mm, 58.84–82.47% of oesophageal length), the number and arrangement of the caudal papillae (20–29 precloacal subventral pairs, 1 adcloacal pair and 4 postcloacal pairs), the size of the spicules (1.94–3.74 mm, 4.85–7.30% of body length) and the morphology of the tail tip. This is the first species of adult ascaridoid nematodes to be reported from fishes of the family Liparidae in northern China.     

A new species of <Emphasis Type="Italic">Falcaustra</Emphasis> (Nematoda,Kathlaniidae) and other nematodes from <Emphasis Type="Italic">Sphenomorphus simus</Emphasis> (Squamata,Scincidae) from Papua New Guinea

Falcaustra papuensis sp. nov. (Ascaridida, Kathlaniidae) from the large intestine of Sphenomorphus simus (Squamata, Sciencidae) is described and illustrated. Falcaustra papuensis represents the 4th Australo-Papuan species assigned to this genus and is distinguished from other Australo-Papuan species by the distribution pattern of caudal papillae (6 precloacal, 6 adcloacal, 8 postcloacal, and 1 median), length of spicules (561–714 μm) and presence of a pseudosucker. Sphenomorphus simus was found to harbor 2 additional species of nematodes, Meteterakis crombiei and Oswaldocruzia bakeri. Sphenomorphus simus represents a new host record for each of these nematode species.     

A new species of Cosmocerca (Nematoda, Cosmocercidae) and other helminths from Genyophryne thomsoni (Anura, Microhylidae) from Papua New Guinea

Cosmocerca tyleri sp. nov. (Ascaridida, Cosmocercidae) from the large intestine of Genyophryne thomsoni (Anura, Microhylidae) is described and illustrated. Cosmocerca tyleri sp. nov. represents the 23rd species assigned to the genus and the 6th from the Australian realm. Of the 5 Australian species previously described, C. tyleri sp. nov. differs from C. limnodynastes and C. novaeguineae in number of plectanes, 4 pairs in C. tyleri, 5 pairs in C. limnodynastes and C. novaeguineae. Cosmocerca australis has 3–4 pairs of plectanes, C. archeyi and C. zugi each have 4 pairs of plectanes; however, in each species the plectanes lie in the fourth quarter of the body and just anterior to the cloaca. In C. tyleri sp. nov. the plectanes lie in the third quarter of the body and there is significant space between the cloaca and the posterior pair of plectanes.     

A new species of <Emphasis Type="Italic">Aplectana</Emphasis> (Nematoda,Cosmocercidae) in <Emphasis Type="Italic">Platymantis boulengeri</Emphasis> (Anura,Ceratobatrachidae) from Papua New Guinea

Aplectana krausi sp. nov. (Ascaridida, Cosmocercidae) from the intestines of Platymantis boulengeri (Anura, Ceratobatrachidae) is described and illustrated. Aplectana krausi represents the 42nd species assigned to the genus, the 4th species reported from the Australo-Papuan region. It is easily separated from the three species previously reported from the region by the distribution pattern of male caudal papillae: A. macintoshii and A. novaezelandiae have irregular patterns; A. zweifeli and A. krausi have defined patterns. Aplectana zweifeli has 8–10 precloacal, no adcloacal, and 9 postcloacal pairs of papillae, there is a single median papillae just anterior to the cloaca; A. krausi has 5 precloacal, 1 adcloacal, and 5 postcloacal pairs of papillae, a median papillae is absent.     

A new species of <Emphasis Type="Italic">Falcaustra</Emphasis> (Nematoda,Kathlaniidae) from <Emphasis Type="Italic">Cnemaspis</Emphasis> aff. <Emphasis Type="Italic">tro pidogaster</Emphasis> (Squamata,Gekkonidae) from Sri Lanka

Falcaustra desilvai sp. nov. (Ascaridida, Kathlaniidae) from the large intestine of Cnemaspis aff. tropidogaster (Squamata, Gekkonidae) is described and illustrated. Falcaustra desilvai represents the 4th nematode species from Sri Lanka to be assigned to the genus and is distinguished from other Sri Lankan species by the distribution pattern of caudal papillae (12 precloacal, 2 adcloacal, 10 postcloacal, and 1 median), length of spicules (956–1046 μm) and absence of a pseudosucker.     

The first record of Macrogyrodactylus species (Monogenea, Gyrodactylidae) on freshwater fishes in Senegal with the description of Macrogyrodactylus simentiensis sp. nov., a parasite of Polypterus senegalus Cuvier

The first record of monogenean parasites of the genus Macrogyrodactylus Malmberg, 1957 on freshwater fish in Senegal is presented. Macrogyrodactylus congolensis Prudhoe, 1957 from the skin and Macrogyrodactylus heterobranchii N’Douba et Lambert, 1999 from the gills of Clarias anguillaris L. were found, representing new host records for these parasites. On Polypterus senegalus Cuvier, three Macrogyrodactylus species were identified, Macrogyrodactylus polypteri Malmberg, 1957, Macrogyrodactylus simentiensis sp. nov. and Macrogyrodactylus sp. M. simentiensis sp. nov. can be readily distinguished from the other Macrogyrodactylus species by the size of its hamuli and the shape of its marginal hook sickles. The marginal hooks on the anterolateral lobes of M. simentiensis differ in size and shape from those on the posterior margin of the haptor. Measurements and drawings of the haptoral sclerites of all five identified species are provided.     

A new species of <Emphasis Type="Italic">Heligmosomoides</Emphasis> (Nematoda,Heligmosomidae) parasitic in <Emphasis Type="Italic">Peromyscus maniculatus</Emphasis> (Rodentia,Cricetidae) from Pennsylvania,USA

Heligmosomoides vandegrifti sp. nov. (Nematoda, Heligmosomidae) is described from Peromyscus maniculatus (Rodentia, Cricetidae) from Pennsylvania, USA. It differs from its closest congener, H. douglasi, in the number of cuticular ridges (35 vs. 32 in male, 36 vs. 41 in female at mid-body), longer bursal rays 2 in relation to rays 3, and in having smaller spicules (635–740 μm long vs. 1 mm). It is proposed that both H. douglasi and H. vandegrifti sp. nov. are parasites of capture from species in North American arvicoline rodents.     

A new species of <Emphasis Type="Italic">Oxyascaris</Emphasis> (Nematoda,Cosmocercidae) in the Costa Rica brook frog, <Emphasis Type="Italic">Duellmanohyla uranochroa</Emphasis> (Anura,Hylidae)

Oxyascaris mcdiarmidi sp. nov. (Nematoda, Cosmocercidae) from the small intestine of Duellmanohyla uranochroa from Costa Rica is described. Oxyascaris mcdiarmidi sp. nov. represents the 4th species assigned to the genus and is distinguished from congeners by the distribution pattern of the caudal papillae of the male, spicule length and vulvar position.     

A new species of <Emphasis Type="Italic">Chitwoodiella</Emphasis> Basir, 1948 with first report on <Emphasis Type="Italic">Mirzaiella asiatica</Emphasis> Basir, 1942 (Nematoda,Travassosinematidae) from Manipur,North-East India

Chitwoodiella longicardia sp. nov. is characterized by having modified cardia into a long tubular structure and extends upto anterior portion of the intestine. This character is present in all the specimens collected from North-East India and represents the third species described under the genus globally. A short note on Mirzaiella asiatica Basir, 1942 is also given. Moreover, key to known species of Chitwoodiella and Mirzaiella are also provided. A comparative measurement table of known species of Chitwoodiella and Mirzaiella are given in Table I and Table II.     

A new species of <Emphasis Type="Italic">Moaciria</Emphasis> (Nematoda,Heterakidae) and other helminths in the red Mawatta frog, <Emphasis Type="Italic">Hylophorbus</Emphasis> cf. <Emphasis Type="Italic">rufescens</Emphasis> (Anura,Microhylidae) from Papua New Guinea

Moaciria moraveci sp. nov. (Nematoda, Heterakidae) from the large intestine of Hylophorbus cf. rufescens from Papua New Guinea is described. Moaciria moraveci sp. nov. represents the 9th species assigned to the genus and the 5th from the Australo-Papuan region. It is distinguished from congeners by the distribution pattern of the caudal papillae of the male, spicule length and vulvar position.     

Three new species of the feather mite genus Pteroherpus Gaud, 1981 (Astigmata, Pteronyssidae) from the bulbuls (Passeriformes, Pycnonotidae) in Africa

Three new species of the feather mite genus Pteroherpus Gaud, 1981 are described from the bulbuls (Passeriformes, Pycnonotidae) in Africa: Pteroherpus nicator sp. nov. from Nicator gularis Hartlaub et Finsch, 1870, P. pyrrhuri sp. nov. from Pyrrhurus scandens (Swainson, 1837), and P. trinoton sp. nov. from Phyllastrephus terrestris Swainson, 1837.     

Redescription of <Emphasis Type="Italic">Decorataria decorata</Emphasis> (Spirurida,Acuariidae) based on nematodes from <Emphasis Type="Italic">Podiceps cristatus</Emphasis> and <Emphasis Type="Italic">P. grisegena</Emphasis> (Aves,Podicipediformes) from Bulgaria

Decorataria decorata (Cram, 1927) is redescribed on the basis of light-microscopy and SEM observations on specimens collected from the stomach of Podiceps cristatus and P. grisegena from Bulgaria. The SEM study revealed the presence of a porebearing field on each pseudolabium and a pair of spines (one dorsal and one ventral) situated between bases of the cordons. The deirids are spine-like and minute. The light-microscopy examination showed the presence of ornamentation situated under the dorsal surface of caudal alae. The occurrence of D. decorata in Bulgaria is a new geographical record.