The infection dynamics of metacercariae were assessed in cyprinoid fish (cyprinoids) from Chiang Mai and Sakon Nakhon Provinces, Thailand, during October 2008 to September 2009. The samples were collected during 3 seasons from rivers and local markets. Metacercarial infection was determined by acidpepsin digestion and confirmed using HAT-RAPD PCR method. Thirteen and 16 species of cyprinoids we...

Eight polymorphic microsatellite loci were isolated and characterized for the Cardinal fish (Apogon imberbis), a coastal-reef fish endemic to the Mediterranean Sea. Characterization of 30 Cardinal fish individuals form the western Mediterranean showed moderate to high allelic diversity ranging from 6 to 19 alleles per locus. Two loci showed significant departures from Hardy-Weinberg equilibrium...

This paper describes three species of the genus Tripyla from New Zealand and provides a key to species based on the morphology of females. Tripyla daviesae sp. nov. is characterized by its short body length (L = 1143-1363 μm), relatively anterior vulva (V = 50-51%), and the length of the gubernaculum (13-17 μm). Tripyla tirau sp. nov. is characterized by its relatively posterior vulva (V = 55.5...

A molecular tool, focused on the mitochondrial Control Region (CR), was developed to discriminate the two hawthorn-feeding psyllid species, Cacopsylla melanoneura (Förster) and C. affinis (Löw), and to estimate their frequencies in mixed populations. The test was carried out in paired and single-tube amplifications and validated analysing 52 male specimens previously determined by morphological...

Here we present a new species of placoderm fish, Africanaspis edmountaini sp. nov., and redescribe Africanaspis doryssa on the basis of new material collected from the type locality of Africanaspis. The new material includes the first head shields of Africanaspis doryssa in addition to soft anatomy for both taxa. Hitherto Africanaspis was entirely described from trunk armour and no record of bo...

Euglenids comprise a distinct clade of flagellates with diverse modes of nutrition, including phagotrophy, osmotrophy and phototrophy. Much of the previous research on euglenids has focused on phototrophic species because of their ecological abundance and significance as indicators for the health of aquatic ecosystems. Although largely understudied, phagotrophic species probably represent the m...

The family sparidae is represented in Pakistan by 14 species belonging to eight genera: the genus Acanthopagrus with four species, A. berda, A. arabicus, A. sheim, and A. catenula; Rhabdosargus, Sparidentex and Diplodus are each represented by two species, R. sarba and R. haffara, Sparidentex hasta and S. jamalensis, and Diplodus capensis and D. omanensis, and the remaining four genera are repr...