ABSTRACT
Chimaerula bonai sp. n. is described from the small intestine of Phimosus infuscatus (Lichtenstein) in Paraguay. The new species differs from the other two species of Chimaerula Bona, 1994, i.e., Chinmaerula woodlandi (Prudhoe, 1960) and Chinmaerula leonovi (Belogurov et Zueva, 1968), mainly by the intermediate number of rostellar hooks (30-34 compared to 42-46 in the former and 20-22 in the latter), longer rostellar hooks (31-34 microm versus 26 microm and 19-21 microm, respectively), shorter cirrus sac (58-82 microm versus 158-201 microm and 134-183 microm, respectively) and the absence of rosethorn spines in the cirrus armament. Modifications in the generic diagnosis of Chimaerula are proposed in order to conform it with some peculiarities of the new species (i.e., the relatively small and thin cirrus, the absence of rosethorn spines in its armament and the small cirrus sac).
Subject(s)
Bird Diseases/parasitology , Birds/parasitology , Cestoda/classification , Cestode Infections/parasitology , Animals , Cestoda/anatomy & histology , Intestine, Small/parasitology , ParaguayABSTRACT
The types of Confluaria capillaris (Rudolphi, 1810) from Podiceps auritus in (?) Germany and the types of C. capillaroides (Fuhrmann, 1906) from Podiceps dominicus in Brazil are redescribed. C. capillaroides is recognised as a junior synonym of C. capillaris (new synonymy). Data on specimens of the same species from P. cristatus and P. grisegena in Bulgaria are also presented. The previous records of the two nominal species are critically analysed in view of the present redescriptions. The host range of C. capillaris includes only grebes of the genus Podiceps, i.e. P. auritus, P. cristatus, P. grisegena, P. dominicus and P. nigricollis; the records in other hosts (Gaviiformes, Charadriiformes and Passeriformes) are considered erroneous or doubtful. The geographical range includes Europe, Central Asia and northern South America.
Subject(s)
Bird Diseases/parasitology , Cestoda/classification , Cestode Infections/veterinary , Animals , Asia , Birds , Bulgaria , Cestoda/anatomy & histology , Cestode Infections/parasitology , Female , Hymenolepis/anatomy & histology , Hymenolepis/classification , Male , South America , Taenia/anatomy & histology , Taenia/classificationABSTRACT
Burhinotaenia colombiana n. sp. (Dilepididae) is described from the small intestine of the double-striped stone curlew Burhinus bistriatus (Burhinidae) captured at Carimagua, Colombia. The new species is distinguished from the most similar Burhinotaenia delachauxi (Baer, 1925), a parasite of the Old World Burhinus spp., by the longer cirrus-sac (375-590, avg. 514 microns vs. 322-393, avg. 354 microns) and longer rostellar hooks (412-451, avg. 440 microns vs. 358-367, avg. 364 microns). The validity of the genus Burhinotaenia Spasskii and Spasskaya, 1965 and its generic diagnosis as proposed by Bona (1994) are confirmed. This is the first record of a species of Burhinotaenia in the New World.