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292. Two new species of Acanthobothrium (Tetraphyllidea: Onchobothriidae) from Pastinachus cf. sephen (Myliobatiformes: Dasyatidae) from the Persian Gulf and Gulf of Oman
- Creator:
- Maleki, Loghman, Malek, Masoumeh, and Palm, Harry W.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Cestoda, rays, taxonomy, surface ultrastructure, Iran, and Oman
- Language:
- English
- Description:
- Two new species of Acanthobothrium van Beneden, 1850 from the spiral intestine of Pastinachus cf. sephen Forsskål from the Iranian coast of the Persian Gulf and the Gulf of Oman are described. To analyse the surface ultrastructure the worms were studied using light and scanning electron microscopy. Acanthobothrium jalalii sp. n. belongs to the category 1 species of the genus so far including 43 species. This tiny new species differs from the other category 1 species by its small total length (2.18 ± 0.49 mm), number of proglottids (4.7 ± 0.9) and testes (24 ± 3), terminal segments in an apolytic condition and the shape of the cirrus-sac. Acanthobothrium sphaera sp. n. is a small worm that belongs to the category 2 species of the genus so far including 36 species. A. sphaera sp. n. differs from the other category 2 species by its small total length (1.6 ± 0.2 mm), number of proglottids (9.6 ± 1.2) and testes (12 ± 1), the presence of a vaginal sphincter and the shape of the ovary. This is the first report of Acanthobothrium from the cowtail stingray, P. cf. sephen, from the Persian Gulf and Gulf of Oman. Pastinachus sephen sensu lato has been reported as a common host of species of Acanthobothrium. Most recently, the host genus Pastinachus Rüppell has been split into five nominal species and several Acanthobothrium species infect the newly described congeners but not P. sephen. The real identity of the host studied within the present study is still in question, since sequence data of three specimens from the Gulf of Oman do not correspond to P. sephen sensu stricto.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
293. Two new species of cobitid fish (Teleostei, Cobitidae) from the River Nanliu and the River Beiliu, China
- Creator:
- Chen, Yongxia and Chen, Yifeng
- Type:
- article and TEXT
- Subject:
- Cobitis, taxonomy, and Guangxi Province
- Language:
- English
- Description:
- Two new species of Cobitis, C. multimaculata sp. nov. and C. microcephala sp. nov. are described and illustrated from the River Nanliu and the River Beiliu, Guangxi Province, China. Cobitis multimaculata can be distinguished from congeners by its unique colour pattern of scattered, small, elongated, oval blotches on the side of the body; well developed mental lobes; and cardioid lamina circularis. It is similar to C. arenae, but can be distinguished from it by possessing a stumpy body (body depth 6.1-6.6 in standard length in males and 5.7-7.3 in females versus 7.9 in standard length in male and 7.3-9.6 in females), shorter caudal peduncle (caudal peduncle depth 1.4-1.7 of its length in males and 1.6-1.8 in females versus 2.5 in male and 2.3-3.1 in females); and 17-22 small, elongate oval blotches along lateral line (versus 20-25 spots). Cobitis microcephala can be distinguished from congeners by possessing small and solitary irregular spots scattered on the side of the body; a slender and finely serrated (16-18 serrae on the inner margin) lamina circularis; and a much smaller jet black spot on upper half of caudal-fin base.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/
294. Two new species of Crocidura (Mammalia: Soricidae) from Ethiopia and updates on the Ethiopian shrew fauna
- Creator:
- Konečný, Adam, Hutterer, Rainer, Meheretu, Yonas, and Bryja, Josef
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- shrews, Crocidurinae, East Africa, taxonomy, phylogeny, diversity, and new records
- Language:
- English
- Description:
- We describe two new species of white-toothed shrews from south-western and central Ethiopia, based on recent collections and an application of morphological and genetic methods, Crocidura similiturba sp. nov. and Crocidura makeda sp. nov. Comparisons are provided with other Crocidura species known to occur in the country. Both new species are currently known only from the Ethiopian Highlands. Furthermore, we provide new geographical records and discuss biogeographical patterns in the country. New molecular data, even if based primarily on mitochondrial cytochrome b, suggests substantial divergence within afrotropical Suncus megalura, suggesting that the East African lineage might be considered separated at the species level – Suncus sorella (Thomas, 1897), stat. nov. Molecular data support a monophyly of the clade, grouping most Crocidura species endemic to Ethiopia (the East African subclade of the Old World clade), but also indicates additional colonisations of Ethiopian Plateau from East and Central Africa in the past. The remarkable number of endemics shows that Ethiopia is an important centre for the Crocidura radiation, as is the case for other groups of non-flying terrestrial vertebrates.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
295. Two new species of Cylicospirura Vevers, 1922 (Nematoda: Spirocercidae) from carnivores in southern Africa, with validation of the related genera Gastronodus Singh, 1934 and Skrjabinocercina Matschulsky, 1952
- Creator:
- Junker, Kerstin, Lane, Emily P., McRee, Anna E., Foggin, Chris, van Dyk, D. Schalk, and Mutafchiev, Yasen
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Petrowospirura, Crocuta crocuta, Panthera pardus, carnivores, taxonomy, and Africa
- Language:
- English
- Description:
- Two new species of Cylicospirura Vevers, 1922 are described from carnivores from southern Africa. Cylicospirura crocutae Junker et Mutafchiev sp. n. from Crocuta crocuta (Erxleben) in Zimbabwe is distinguished from its congeners by combinations of characters, including the presence of four cephalic and four external labial papillae, while internal labial papillae were not distinct, the presence of groups of small accessory teeth between the six large tricuspid teeth, the fifth and the sixth pairs of the caudal papillae being equidistant from the cloaca, and a large ratio of length of the muscular oesophagus to that of the glandular oesophagus. Cylicospirura pardalis Junker et Mutafchiev sp. n. from Panthera pardus (Linnaeus) in the Republic of South Africa is characterized by having tricuspid teeth with large, claw-like, abaxial cusps, four cephalic and six internal labial papillae. Based on the number of caudal papillae and the position of the vulva, the subgenera Gastronodus Singh, 1934 and Skrjabinocercina Matschulsky, 1952 are re-elevated to generic rank. Amended diagnoses are proposed for the genera Cylicospirura, Gastronodus and Skrjabinocercina. Petrowospirura lyncis Matschulsky, 1952 is recognized as valid and, together with P. petrowi Sadykhov, 1957 and P. barusi Arya, 1979, is transferred to Cylicospirura as C. lyncis (Matschulsky, 1952) Junker et Mutafchiev comb. n., C. petrowi (Sadykhov, 1957) Junker et Mutafchiev comb. n. and C. barusi (Arya, 1979) Junker et Mutafchiev comb. n., respectively.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
296. Two new species of Halysioncum Caira, Marques, Jensen, Kuchta et Ivanov, 2013 (Cestoda, Diphyllidea) from Indo-Pacific rays of the genus Aetomylaeus Garman (Myliobatiformes, Myliobatidae)
- Creator:
- Ivanov, Verónica A. and Caira, Janine N.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- tapeworms, parasites, morphology, taxonomy, elasmobranchs, South China Sea, and Arafura Sea
- Language:
- English
- Description:
- Recent collections of cestode parasites from two species of the myliobatid genus Aetomylaeus Garman from several localities in the Pacific Ocean resulted in the discovery of two new species of Halysioncum Caira, Marques, Jensen, Kuchta et Ivanov, 2013. Halysioncum gibsoni sp. n. from Aetomylaeus maculatus (Gray) in the South China Sea off Borneo differs from all of its congeners in having the following combination of characters: 27 apical hooks (14 type A and 13 type B hooks), 11-12 lateral hooklets, 22-28 spines per column on the cephalic peduncle, testes distributed in a single column and an internal seminal vesicle. Halysioncum arafurense sp. n., recovered from Aetomylaeus cf. nichofii 2 (sensu Naylor et al. 2012b) in the Arafura Sea off the Wessel Islands, Northern Territory, Australia, can be distinguished from its congeners based on the following combination of characters: 23 apical hooks (12 type A and 11 type B hooks), the number of lateral hooklets (9-11), the number of spines per column on the cephalic peduncle (20-24), the number and distribution of the testes (13-15 testes in two irregular columns), and the distribution of vitelline follicles (interrupted dorsally at the level of the ovarian lobes). Both species represent the first verified records of diphyllideans from eagle rays of the genus Aetomylaeus and formally extend the host associations of diphyllideans to include a third genus of Myliobatiformes. The myliobatiforms are indeed an understudied group of available hosts for diphyllideans and represent interesting target hosts if the diversity of diphyllidean tapeworms is to be fully estimated and understood.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
297. Two new species of Isospora (Apicomplexa: Eimeriidae) from geckoes of the genus Rhacodactylus (Sauria: Gekkonidae) endemic to New Caledonia
- Creator:
- Modrý, David, Jirků, Miloslav, and Veselý, Milan
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Coccidia, Apicomplexa, Isospora, taxonomy, Gekkonidae, and Rhacodactylus
- Language:
- English
- Description:
- Coprological examination of New Caledonian geckoes of the genus Rhacodactylus Fitzinger, 1843 revealed two new species of coccidia. Isospora leachiani sp. n. from R. leachianus (Cuvier, 1829) has oval, colourless oocysts, measuring 21-26 × 16-18.5 µm. Sporocysts are ellipsoidal, 11-12.5 × 6.5-8 µm, with distinct Stieda and substieda bodies. Oocysts of Isospora sykorai sp. n. from R. ciliatus (Guichenot, 1866) are elongately oval to cylindrical, 20-23.5 × 11-14 µm; sporocysts of this species are ellipsoidal, 10-11.5 × 7-8 µm, with a slightly pointed end and Stieda and substieda bodies. Infected geckoes did not exhibit any alteration of their health status.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
298. Two new species of Myliocotyle (Monogenea: Monocotylidae) from the gills of Aetomylaeus maculatus and A. nichofii (Elasmobranchii: Myliobatidae) from Sarawak, Borneo, Malaysia
- Creator:
- Chisholm, Leslie A. and Whittington, Ian D.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Monogenea, Monocotylidae, Heterocotylinae, Myliocotyle, Myliobatidae, Aetomylaeus, and taxonomy
- Language:
- English
- Description:
- Myliocotyle borneoensis sp. n. and M. multicrista sp. n. (Monocotylidae: Heterocotylinae) are described from the gills of the mottled eagle ray, Aetomylaeus maculatus (Gray), and the banded eagle ray A. nichofii (Bloch et Schneider) (Myliobatidae), respectively, collected from the northern coast of Malaysian Borneo. These are the first monogeneans to be described on elasmobranchs from Borneo. The formerly monotypic Myliocotyle (for M. pteromylaei) was distinguished from other monocotylids by the distribution and morphology of the eight sclerotised dorsal haptoral accessory structures and the morphology of the male copulatory organ. However, we have determined that M. pteromylaei has ten structures on the dorsal surface of the haptor. Myliocotyle borneoensis is distinguished from M. pteromylaei by the morphology of the male copulatory organ and its accessory piece. Myliocotyle multicrista has 12 sclerotised dorsal haptoral accessory structures and a male copulatory organ with two accessory pieces. Additional sclerotised ridges across the ventral surfaces of each loculus (except the posterior-most pair) are also present in M. multicrista. The diagnosis for Myliocotyle is revised given our discovery of additional dorsal haptoral accessory structures in the type species and to accommodate other new characters of the two new species. Anterior secretions of Myliocotyle are discussed.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
299. Two new species of Rhabdias Stiles et Hassall, 1905 (Nematoda: Rhabdiasidae) from anuran amphibians in Pará, Brazil
- Creator:
- Kuzmin, Yuriy, Vasconcelos Melo, Francisco Tiago de, Silva Filho, Heriberto Figueira da, and Nascimento dos Santos, Jeannie
- Format:
- print, počítač, and online zdroj
- Type:
- model:article and TEXT
- Subject:
- hvízdalka, žáby, Leptodactylus, frogs, Amazonka (řeka : oblast), Jižní Amerika, Amazon River Basin, South America, taxonomy, Adelphobates, Rhabdiasidae, Anura, eastern Amazonia, 2, and 59
- Language:
- English
- Description:
- Two new lung-dwelling nematode species of the genus Rhabdias Stiles et Hassall, 1905 were discovered in Caxiuanã National Forest, Pará state, Brazil. Rhabdias galactonoti sp. n. was found in a dendrobatid frog Adelphobates galactonotus (Steindachner). The species is characterised by the regularly folded inner surface of the anterior part of the buccal capsule seen in apical view, flask-shaped oesophageal bulb and narrow, elongated tail. Rhabdias stenocephala sp. n. from two species of leptodactylid frogs, Leptodactylus pentadactylus (Laurenti) (type host) and L. paraensis (Heyer), is characterised by a narrow anterior end that is separated from the remaining body by a constriction. Both species possess six small but distinct lips, a cuticle that is inflated along the whole body, a doliiform buccal capsule separated into a longer anterior and a shallow, ring-shaped posterior part, lateral pores in the body cuticle and zones of spermatogenesis in the syngonia. Rhabdias galactonoti sp. n. is the first species of the genus found in Dendrobatidae; R. stenocephala sp. n. is the second species described from Leptodactylidae in eastern Amazonia., Yuriy Kuzmin, Francisco Tiago de Vasconcelos Melo, Heriberto Figueira da Silva Filho, Jeannie Nascimento dos Santos., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
300. Two new species of Rhodeus (Teleostei: Cyprinidae: Acheilognathinae) from the River Yangtze, China
- Creator:
- Li, Fan , Liao, Te-Yu , and Arai, Ryoichi
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- taxonomy, bitterling, lateral line, breeding season, and egg size
- Language:
- English
- Description:
- Rhodeus cyanorostris sp. nov. and R. nigrodorsalis sp. nov. are described from two tributaries of the River Yangtze, in Sichuan and Jiangxi Provinces, China, respectively. Both species have a small number of branched dorsal-fin rays (both with a mode of 8) and anal-fin rays (mode of 7-8 and 8, respectively), which makes them easily distinguished from all congeners. Rhodeus cyanorostris sp. nov. differs from R. nigrodorsalis sp. nov. in having more predorsal scales (14-16 vs. 12-13), fewer pectoral-fin rays (10-11 vs. 12), a shorter major axis of the eggs (2.5-2.8 mm vs. mostly 3.3-3.5 mm), absence of two rows of light spots on the dorsal-fin rays (vs. presence), and absence of a black blotch on the dorsal fin in adult males (vs. presence). The breeding season in winter of the two new species is unique among the Acheilognathinae.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public