| phylogeography of the indo-west pacific maskrays (dasyatidae, neotrygon): a complex example of chondrichthyan radiation in the cenozoic. | maskrays of the genus neotrygon (dasyatidae) have dispersed widely in the indo-west pacific being represented largely by an assemblage of narrow-ranging coastal endemics. phylogenetic reconstruction methods reproduced nearly identical and statistically robust topologies supporting the monophyly of the genus neotrygon within the family dasyatidae, the genus taeniura being consistently basal to neotrygon, and dasyatis being polyphyletic to the genera taeniurops and pteroplatytrygon. the neotrygon ... | 2012 | 23467194 |
| dna barcoding of elasmobranchs from indian coast and its reliability in delineating geographically widespread specimens. | identification of elasmobranchs by conventional taxonomy is difficult due to similarities in morphological characters. species-specific molecular markers are good choice for identifying species irrespective of it's life stage. recently, mitochondrial cytochrome c oxidase subunit i (coi) gene got global recognition as a barcode gene to discriminate all animals up-to species level. in this study, mitochondrial coi partial gene was used to develop dna barcodes for 18 species of elasmobranchs (10 sp ... | 2015 | 24041451 |
| dollfusiella campbell & beveridge, 1994 (trypanorhyncha: eutetrarhynchidae) from elasmobranchs off borneo, including descriptions of five new species. | sampling of a large number of elasmobranchs from coastal waters off borneo revealed the presence of five new species of dollfusiella campbell & beveridge, 1994 (trypanorhyncha: eutetrarhynchidae), namely d. angustiformis n. sp., d. hemispinosa n. sp., d. spinosa n. sp., d. imparispinis n. sp. and d. parva n. sp. dollfusiella angustiformis n. sp. is described from the spiral intestines of four species of the dasyatid stingray genus himantura müller & henle from both the indonesian and malaysian p ... | 2013 | 23949646 |
| the cestode order rhinebothriidea no longer family-less: a molecular phylogenetic investigation with erection of two new families and description of eight new species of anthocephalum. | the spiral intestines of a total of 30 specimens of 14 species of batoids from around the world were examined for rhinebothriideans. these consisted of taeniura grabata, dasyatis margaritella, and dasyatis sp. from senegal, dasyatis americana from florida, dasyatis dipterura and dasyatis longa from méxico, himantura jenkinsii, himantura leoparda, himantura uarnak 2, urogymnus asperrimus 1, and neotrygon kuhlii 4 from australia, in addition to himantura uarnacoides and neotrygon kuhlii 1 from bor ... | 2015 | 25660771 |
| the cardiovascular and neurotoxic effects of the venoms of six bony and cartilaginous fish species. | fish venoms are often poorly studied, in part due to the difficulty in obtaining, extracting, and storing them. in this study, we characterize the cardiovascular and neurotoxic effects of the venoms from the following six species of fish: the cartilaginous stingrays neotrygon kuhlii and himantura toshi, and the bony fish platycephalus fucus, girella tricuspidata, mugil cephalus, and dentex tumifrons. all venoms (10-100 μg/kg, i.v.), except g. tricuspidata and p. fuscus, induced a biphasic respon ... | 2017 | 28212333 |
| taxonomic status of maskrays of the neotrygon kuhlii species complex (myliobatoidei: dasyatidae) with the description of three new species from the indo-west pacific. | the bluespotted maskray, neotrygon kuhlii (müller & henle, 1841), once thought to be widely distributed in the indo-west pacific, consists of a complex of several species and the type series consists of multiple species; its nomenclature is discussed. a lectotype and paralectotype are designated and the species rediagnosed based on the types and a fresh specimen from honiara (solomon islands), near to the collection locality of the lectotype (vanikoro, solomon islands). molecular and morphologic ... | 2016 | 27394245 |
| phylogenetic relationships amongst chloromyxum mingazzini, 1890 (myxozoa: myxosporea), and the description of six novel species from australian elasmobranchs. | six novel species of chloromyxum mingazzini, 1890 are described using a whole evidence approach combining morphometric and molecular data, together with features of their biology. elasmobranchs were collected in australian waters, from the great barrier reef, queensland, off lizard and heron islands; from moreton bay, southeast queensland; off hobart, tasmania; and from the tamar river, launceston, tasmania. the novel species proposed here are: chloromyxum hemiscyllii n.sp. from hemiscyllium oce ... | 2012 | 22085584 |
| three dendromonocotyle species (monogenea: monocotylidae) reported from captive rays, including d. lotteri sp. n. from himantura gerrardi (elasmobranchii: dasyatidae) in the public aquarium at the atlantis resort, dubai. | dendromonocotyle lotteri sp. n. is described from the dorsal skin surface of the stingray himantura gerrardi (gray) on exhibit in the public aquarium at the atlantis resort in dubai. it is differentiated from all other dendromonocotyle species by the unique morphology of the distal portion of the sclerotised male copulatory organ. dendromonocotyle lotteri is the second representative in the genus with 56 marginal haptoral papillae having a papillae to loculus association represented numerically ... | 2009 | 19606786 |