首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
Summary Carnoya kermarreci n.sp. (Rhigonematidae; Nematoda) is described from Anadenobolus politus (Porat) (Rhinocricidae; Diplopoda) from Guadeloupe. The new species most closely resembles C. martiniquensis Adamson, 1984 from A. politus in Martinique and C. venezuelensis Adamson, 1984 from Rhinocricus flavocinctus from Venezuela in that the lips in the male are broad and the arrangement of caudal papillae is almost identical in the three species. Males of C. kermarreci are easily distinguished by the absence of spines, by the form of the cuticular projections at the base of the buccal cavity and by the fact that the most anterior pair of caudal papillae are located very close together. Females are distinguished by the presence of three pairs of somatic papillae near the level of the vulva. The nematode fauna of A. politus includes species from two distinct orders and presumably reflects the fact that diplopods are among the most ancient hosts of nematodes.  相似文献   

2.
Trioza hopeae sp. nov. is described and illustrated from Vietnam. Trioza hopeae develops on Hopea odorata, a valuable timber tree on which it causes serious damage by inducing leaf galls. The new species is closely related to Trioza minuta (Mathur) comb. nov. (from Ceropsylla Riley), an Indian species associated with Shorea robusta. Differences between the two species are discussed. Another five Indian species are transferred here from Ceropsylla to Trioza Foerster as T. ferruginea ( Mathur, 1975 ) comb. nov., T. fulvida ( Mathur, 1975 ) comb. nov., T. indica ( Kandasamy, 1986 ) comb. nov., T. longivenata ( Kandasamy, 1986 ) comb. nov., and T. parvus ( Kandasamy, 1986 ) comb. nov.  相似文献   

3.
A new species of Steganoderma (Steganoderma) (Digenea: Zoogonidae) was found in the digestive tract of the southernmost, endemic and scale-less characid, Gymnocharacinus bergi, inhabiting thermal headwaters of the Valcheta Creek in northern Patagonia, Argentina. Steganoderma valchetensis n. sp. is included in the subgenus Steganoderma because of having a sessile ventral sucker and caeca reaching to the testes. This new species can be distinguished from other species of this genus on the basis of body-length, sucker-ratio, the length of the cirrus-sac, the morphology of the seminal vesicle and gonads, and the location of the vitelline follicles and genital pore. The taxonomic status of the species of Steganoderma, parasitising the freshwater fishes of Patagonia, in southern Argentina, and Chile, is also discussed.  相似文献   

4.
Hexacanalis Perrenoud, 1931 was erected for H. abruptus (Southwell, 1911) Perrenoud, 1931 based on the presence of six excretory vessels, a unique feature among the Lecanicephalidea. The genus has since been considered a junior synonym of Cephalobothrium Shipley & Hornell, 1906 or Lecanicephalum Linton, 1890, or as a genus inquirendum. Based on examination of the syntype series of H. abruptus, this species is redescribed and a lectotype designated. Examination of cestodes from the zonetail butterfly ray Gymnura zonura (Bleeker) from off Indonesian Borneo resulted in the discovery of a second species. Hexacanalis folifer n. sp. is unique among lecanicephalideans in its possession of an ovary that is U-shaped in cross-section and craspedote proglottids with prominent posterior dorso-ventral processes in the form of large lappets. The presence of six excretory vessels, confirmed in both species, supports the validity of Hexacanalis. An additional species, H. pteroplateae (Zaidi & Khan, 1976) n. comb., also from a butterfly ray, G. micrura (Bloch & Schneider) [as Pteroplatea micrura (Bloch & Schneider)], is transferred to this genus from Cephalobothrium Shipley & Hornell, 1906. A revised diagnosis of Hexacanalis is presented. Seven species of this genus remain species inquirendae. Hexacanalis appears to parasitise species of the Gymnuridae van Hasselt; however, specific identifications of the hosts are in need of re-evaluation. A summary of the cestode parasites of the Gymnuridae is presented.  相似文献   

5.
A large number (828) of rodents belonging to nine genera (Bandicota, Berylmys, Chiropodomys, Hapalomys, Leopoldamys, Maxomys, Mus, Niviventer and Rattus) were trapped in four Thai provinces between 2008 and 2010. A new species of Protospirura (Nematoda: Spiruridae) was identified and described. Protospirura siamensis n. sp. was found in 10 rodent species from the four Thai provinces surveyed. The new species can be distinguished from known species of the genus by the arrangement of the papillae on the male and the morphology and length of the spicules. This is the first species of Protospirura to be described from South-East Asia.  相似文献   

6.
Diplobulbus brayi n. sp. is described from the small intestine of Odax acroptilus (Perciformes: Odacidae) from Point Peron in southern Western Australia. One of the five previously described species of Diplobulbus, D. vitellosus Bilqees, 1972 from Tetraodon lunaris (now Lagocephalus lunaris), is synonymised with Alloheterolebes indicus (Gupta, 1968) Hafeezullah, 1971, which is known from the same host in the Indian Ocean. D. brayi n. sp. can be distinguished from the remaining four species of Diplobulbus by the distinct interruption of the vitelline follicles at the ventral sucker, its more elongate form and its long post-testicular space. Diplobulbus is so far restricted to the Indo-Pacific region and appears to be stenoxenic to labroid fishes. This is the first record of a trematode from an odacid fish.  相似文献   

7.
The agamid lizardDraco volans from Palawan, Republic of the Philippines, was found to be parasitised by threePlasmodium species:P. draconis n. sp.,P. volans n. sp. andP. vastator, Laird 1960. BothP. draconis andP. volans, but notP. vastator, were also present inD. volans from Sarawak. The species are readily distinguished by schizont size, merozoite number, and gametocyte size and shape.P. volans has schizonts approximately one-half the size of those ofP. draconis and produces 4–6 merozoites in comparison to 4–16 in the larger species. Gametocytes of both new species are predominantly oval in the Palawan sample and elongate in that from Sarawak.P. draconis gametocytes are approximately twice the size ofP. volans gametocytes, but on average no more than one-half the size of gametocytes ofP. vastator.  相似文献   

8.
A new lepocreadiid genus, Amphicreadium, is erected for the species A. denspeniculus n. sp. from Acanthaluteres vittiger and for an unnamed species from Meuschenia freycineti, both from off northern Tasmania. The new genus is distinguished from all other members of its family by its amphistomatous body plan.  相似文献   

9.
A new species of Blastobotrys Klopotek (1, 2, 4, 5) has been recovered from white pepper. It appears to be sufficiently distinct from B. nivea v. Klopotek. (5), B. proliferas Marvanová, and B. aristata Marvanová (2), to be described as a new species under the name of Blastobotrys navarrensis. Both morphological as well as physiological characteristics were taken in account to differentiate the new species from Blastobotrys species known up to date.  相似文献   

10.
A new species of Allopodocotyle Pritchard, 1966 is described from the intestine and pyloric caeca of Parequula melbournensis (Gerreidae) caught from the waters off South and Western Australia. The new species is distinguished from other species by its larger eggs, broader form, pre-bifurcal genital pore and a number of other measurable features that are discussed. Of the species that share morphological similarities with Allopodocotyle skoliorchis n. sp., it is the only species known from a gerreid; all the other species are from serranids.  相似文献   

11.
Previously only a single species of Ilyocryptus Sars , 1862 (Cladocera: Anomopoda: Ilyocryptidae) was reported from Thailand, I. spinifer Herrick , 1882. However, our examination of numerous samples from this country resulted in the discovery of four other species of Ilyocryptus. Ilyocryptus thailandensis sp. nov. is described from two adjacent water bodies in Uttaradit Province, North Thailand. It has at least two characters which distinguish it from any other species of the Ilyocryptus: (1) a row of lateral setae reaching medial anus, and continuing along preanal margin up to base of the postabdomen; (2) a large projection bearing the sensory setae, situated on the coxal region of antenna II. It appears to be a rare species, may be, endemic of the North Thailand.  相似文献   

12.
Haemoproteus gabaldoni n. sp. is described from the Muscovy duck Cairina moschata from Caracas, Venezuela and is compared to H. greineri and H. nettionis which have been described previously from the Anatidae. The highly amoeboid outline, volutin granules and small number of pigment granules of H. gabaldoni serve to readily separate this species from the other two.  相似文献   

13.
Rubovietnamia coronula Alejandro and Meve, a new coastal Rubiaceae species from Davao del Sur, Philippines is here described and compared with Rubovietnamia nonggangensis and R. sericantha. This third species of Rubovietnamia is distinct from the two known species by its long leaf petioles, prominently keeled stipules, reduced calyx and corolla, outward curling of corolla lobes in anthesal flowers, included anthers and stigma, glabrous fruits with nectariferous disk, and numerous seeds.  相似文献   

14.
A new Conchostracan species, Eocyzicus spinifer from Iraq is described. A table is given to distinguish the known species of the genus Eocyzicus.  相似文献   

15.
Oxytropis sobolevskajae Pjak, a new species endemic to Tuva Republic (south Siberia, Russia), is described and illustrated. The new species belongs to O. sect. Xerobia Bunge subsect. Ampulla Vass. and is confined to the central Tuva depression. This species is probably most closely related to O. leptophylla (Pall.) DC., from which it is easily distinguished by the number of leaflet pairs, the length and type of inflorescence, and the length of the keel cusp.  相似文献   

16.

A new cryptogonimid trematode, Siphoderina hustoni n. sp., is reported, collected off Lizard Island, Queensland, Australia, from the Maori snapper Lutjanus rivulatus (Cuvier). The new species is moderately distinctive within the genus. It is larger and more elongate than most other species of Siphoderina Manter, 1934, has the shortest forebody of any, a relatively large ventral sucker, a long post-testicular zone, and is perhaps most recognisable for the substantial space in the midbody between the ventral sucker and ovary devoid of uterine coils and vitelline follicles, the former being restricted to largely posterior to the ovary and the latter distributed from the level of the anterior testis to the level of the ovary. In phylogenetic analyses of 28S ribosomal DNA, the new species resolved with the other nine species of Siphoderina for which sequence data are available, all of which are from Queensland waters and from lutjanid and haemulid fishes. Molecular barcode data were also generated, for the ITS2 ribosomal DNA and cox1 mitochondrial DNA markers. The new species is the first cryptogonimid known from L. rivulatus and the first metazoan parasite reported from that fish in Australian waters.

  相似文献   

17.
Diplectanum squamatum n. sp. is described from the gills of the sciaenid Cynoscion guatucupa collected off Mar del Plata, Argentina. The new species is distinguished from other species of the genus by the morphology of the hamuli and the male copulatory organ, and presence of scales on the haptor and body. This is the first species of Diplectanum to be reported from southwest Atlantic waters and, with the possible exception of D. cayennense Euzet & Durette-Desset, 1974, the only species from the Atlantic coast of South America.  相似文献   

18.
Salsuginus neotropicalis n. sp. is described from the gills of Belonesox belizanus (Kner), the pike killifish (Poeciliidae), from the southeastern Mexico. S. neotropicalis is distinguished from all other congeners by the morphology of the haptoral sclerites, especially by the presence of a ventral bar with notably enlarged ends, and by possessing overlapping gonads. The diagnosis of Salsuginus is amended based on the position of gonads in this species. This is the first known Salsuginus species occurring in a freshwater fish from the Neotropical Region.  相似文献   

19.
Little is known about the natural enemies of wireworms (Coleoptera: Elateridae), but there are frequent anecdotal reports of (usually unnamed) stiletto fly larvae (Diptera: Therevidae) preying on various species. We observed larvae of Thereva nobilitata (Fabricius) feeding on larvae of the dusky wireworm, Agriotes obscurus L., during the summer of 2011, in Agassiz, British Columbia. This finding is of interest as: both the predator and the wireworm are introduced species to this area from Europe; T. nobilitata is uncommon in North America; and this predator has not been associated with any wireworm species previously. We observed that larvae of male and female T. nobilitata will feed on various sizes of A. obscurus larvae, most feeding being carried out by the smallest T. nobilitata larvae. These findings suggest future work should assess the potential for therevid larvae as top‐down regulators of Agriotes larvae under field conditions.  相似文献   

20.
Strongyloides spearei n. sp. is described from the small intestine of the common wombatVombatus ursinus from Healesville, Victoria. The new species is distinguished from all known congeners by: the triangular shape of the stoma and the length of the parasitic female; the blunt spicules in the free-living male; and the presence of eggs in the faeces of the host.S. spearei andS. thylacis Mackerras, 1959 form a separate group withinStrongyloides based on both species infecting marsupials, having directly recurrent ovaries in the parasitic female and having blunt spicules in the free-living male. The histological localisation ofS. spearei is predominantly within the crypts of the small intestine.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号