The Leiocassis collinus lives in the demersal, freshwater environment.
Leiocassis collinus was discovered in the Segama and Kalabakan River drainages in the state of Sabah on the northwest tip of Borneo. More
09 - 10 : rečna soma Leiocassis collinus in Leiocassis tenebricus (junij 2006) 11 - 13 : 3 drevesne vrste rodu Beilschmiedia (julij 2005, julij 2006) 14 : mikro- mrenica, Paedocypris micromegethes (8,8 mm), (januar 2006) 15 : drevesna žaba Rhacophorus gadingensis (december 2005) More