Paedocypris WikipediaSelar crumenophthalmus in pattani bay Southernmost coast of Thailand, facing the Gulf of Thailand gathered from the branchial cavity Nagasawa and Petchsupa 2009. Gill chamber of R. kanagurta from the Parangipettai coastal region Rameshkumar et al. 2013. Norileca triangulata from Parexocoetusbrachypterus and Sardinella gibbosa from Queensland mentioned Bruce 1990. The two species of Norileca are linked to open water or pelagic schooling fishes Bruce 1990.