Lepeophtheirus pectoralis Lepeophtheirus pectoralis Lepeophtheirus pectoralis is a species of parasitic copepod. It is a parasite of flatfish, the most frequent hosts being the European flounder ("Platichthys flesus"), the plaice ("Pleuronectes platessa"), and the dab ("Limanda limanda"). It feeds on the mucus, skin and blood of the fish, with oviferous females being found in the pectoral and pelvic fins of the host, while immature individuals and males are found in the rest of the body. Its life cycle consists of five phases and ten stages. The first two stages are free swimming nauplius I and II, while the third stage is the
Mogurnda clivicola Bulloo Rivers in Queensland away from the main population, in the very different habitat of larger, muddy-bottomed rivers. Flinders Ranges mogurndas are medium-sized fish, with a maximum total length around 13 cm. They are dark with a fine mottling of dark grey blotches on the upper side with semi-translucent fins. Usually their body is a paler colour underneath. These fish have a series of burnt orange-coloured stripes running backwards down their cheeks looking like warpaint. Roughly around the lateral line is a display of burnt orange-coloured spots interspersed with paler spots, with a single darker spot on the caudal peduncle.