| immunolocalisation of sodium/proton exchanger-like proteins in the gills of elasmobranchs. | na+/h+ exchangers are integral membrane proteins that exchange na+ and h+ across cell membranes. the na+/h+ exchangers 2 and 3 are epithelial isoforms in mammals and contribute to acid-base homeostasis. the gills of fishes, including elasmobranchs, are also associated with acid/base balance, and are probably the primary acid/base regulatory organ. this study examines the presence of na+/h+ exchangers 2 and 3 using immunohistochemistry and immunoblotting in the gills of four species of elasmobran ... | 2002 | 11818215 |
| inter- and intraspecific variation in the distribution and number of pit organs (free neuromasts) of sharks and rays. | the distribution of pit organs (free neuromasts) has previously been documented for several species of pelagic sharks, but is relatively poorly known for rays and bottom-dwelling (demersal) sharks. in the present study, the complete distribution of pit organs was mapped in the demersal sharks heterodontus portusjacksoni, orectolobus maculatus, hemiscyllium ocellatum, chiloscyllium punctatum, and asymbolus analis, and the rays rhinobatos typus, aptychotrema rostrata, trygonorrhina sp. a, raja sp. ... | 2003 | 12616576 |
| 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 |
| heliocotyle ewingi sp. n. (monogenea: monocotylidae) from the gills of myliobatis australis (myliobatididae) from tasmania, australia. | heliocotyle ewingi sp. n. (monogenea: monocotylidae) is described from the gills of myliobatis australis macleay, 1881 (myliobatididae) collected from norfolk bay near hobart, tasmania, australia. heliocotyle ewingi can be distinguished readily from the only other species in the genus, heliocotyle kartasi neifar, euzet et ben hassine, 1999, by the presence of a single pseudoseptum on each of the peripheral loculi except the posteriormost, eyespots and by the morphology of the male copulatory org ... | 2000 | 10945733 |