Callulops

Callulops is a genus of microhylid frogs from Sulawesi as well as the New Guinea region, from Talaud Islands and the Maluku Islands (Moluccas) in the northwest to the Louisiade Archipelago in the east. They are medium- to large-sized terrestrial frogs inhabiting burrows on the forest floor, often under large rocks. Because their population densities can be low, and they are difficult to observe and collect owing to their lifestyle, many species are known only from few specimens.

==Species== {|style="text-align:left; border:1px solid #999999; width: 65%" |-style="background:#CCCC99; text-align: center; " !style="width: 60%; "| Binomial Name and Author!!style="width: 40%; "|Common Name |- |-style="background:#EEEEEE;" | Callulops argus || |-style="background:#EEEEEE;" | Callulops biakensis || |-style="background:#EEEEEE;" | Callulops bicolor || |-style="background:#EEEEEE;" | Callulops boettgeri || Boettger's callulops frog |-style="background:#EEEEEE;" | Callulops comptus || |-style="background:#EEEEEE;" | Callulops doriae || Doria's callulops frog |-style="background:#EEEEEE;" | Callulops dubius || Moluccan callulops frog |-style="background:#EEEEEE;" | Callulops eremnosphax || |-style="background:#EEEEEE;" | Callulops fojaensis || |-style="background:#EEEEEE;" | Callulops fuscus || Brown callulops frog |-style="background:#EEEEEE;" | Callulops glandulosus || Warty callulops frog |-style="background:#EEEEEE;" | Callulops humicola || Kotuni callulops frog |-style="background:#EEEEEE;" | Callulops kampeni || |-style="background:#EEEEEE;" | Callulops kopsteini || Kopstein's callulops frog |-style="background:#EEEEEE;" | Callulops marmoratus || |-style="background:#EEEEEE;" | Callulops mediodiscus || |-style="background:#EEEEEE;" | Callulops microtis || |-style="background:#EEEEEE;" | Callulops neuhaussi || |-style="background:#EEEEEE;" | Callulops omnistriatus || |-style="background:#EEEEEE;" | Callulops personatus || Maprik callulops frog |-style="background:#EEEEEE;" | Callulops robustus || Boulenger's callulops frog |-style="background:#EEEEEE;" | Callulops sagittatus || |-style="background:#EEEEEE;" | Callulops stellatus || |-style="background:#EEEEEE;" | Callulops stictogaster || Irumbofoie callulops frog |-style="background:#EEEEEE;" | Callulops taxispilotus || |-style="background:#EEEEEE;" | Callulops valvifer || |-style="background:#EEEEEE;" | Callulops wilhelmanus || Wilhelm callulops frog |-style="background:#EEEEEE;" | Callulops wondiwoiensis || |-style="background:#EEEEEE;" | Callulops yapenensis || Wilhelm callulops frog |- |}