Nyctimystes is a genus of tree frog

Frog

Frogs are amphibians in the order Anura , formerly referred to as Salientia . Most frogs are characterized by a short body, webbed digits , protruding eyes and the absence of a tail...

 in the Hylidae family. They are principally Papuan

New Guinea

New Guinea is the world's second largest island, after Greenland, covering a land area of 786,000 km2. Located in the southwest Pacific Ocean, it lies geographically to the east of the Malay Archipelago, with which it is sometimes included as part of a greater Indo-Australian Archipelago...

 species but do inhabit islands in the Moluccas and northern Queensland, Australia. All species in this genus have one distinct feature that separates them from other species in the Hylidae genus, the lower eyelid is marked with pattern of lines, veins or dots. This feature presumably acts as camouflage when the frogs are at rest during the day.

This genus inhabits tropical or subtropical montane rainforest

Rainforest

Rainforests are forests characterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750-2000 mm...

. The eggs are large and are laid on submerged objects in fast flowing creeks and streams (not all species of this genus have been recorded as doing this, although it is assumed). The tadpoles have a large sucker-mouths and their body shape is very streamlined with a large tail musculature. All species of this genus have extensive webbing and large toe discs.

Many of the species in this genus have a relatively small population sizes and not much in known about each species, let alone the genus as a whole.

Species

• Loud Big-eyed Tree Frog, Nyctimystes avocalis (Zweifel, 1958)
• Cheesman’s Big-eyed Tree Frog, Nyctimystes cheesmanae (Tyler, 1964)
• Australian Lace-lid
  Australian Lace-lid
  The Australian Lace-lid is a tree frog and is the only species in its genus that occurs in Australia.-Physical description:...
  
  , Nyctimystes dayi (Günther, 1897)
• Dayman Big-eyed Tree Frog, Nyctimystes daymani (Zweifel, 1958)
• Madang Big-eyed Tree Frog, Nyctimystes disruptus (Tyler, 1963)
• Indonesian Big-eyed Tree Frog, Nyctimystes fluviatilis (Zweifel, 1958)
• Kaironk Big-eyed Tree Frog, Nyctimystes foricula (Tyler, 1963)
• Grant’s Big-eyed Tree Frog, Nyctimystes granti (Boulenger, 1914)
• Mondo Big-eyed Tree Frog, Nyctimystes gularis (Parker, 1936)
• Green Big-eyed Tree Frog, Nyctimystes humeralis (Boulenger, 1912)
• Sandy Big-eyed Tree Frog, Nyctimystes kubori (Zweifel, 1958)
• Nyctimystes kuduki Richards, 2007
• Mountain Big-eyed Tree Frog, Nyctimystes montanus (Peters et Doria, 1878)
• Common Big-eyed Tree Frog, Nyctimystes narinosus (Zweifel, 1958)
• Simbang Big-eyed Tree Frog, Nyctimystes obsoletus (Lönnberg, 1900)
• Richard’s Big-eyed Tree Frog, Nyctimystes oktediensis (Richards et Johnston, 1993)
• Papua Big-eyed Tree Frog, Nyctimystes papua (Boulenger, 1897)
• Archipelago Big-eyed Tree Frog, Nyctimystes perimetri (Zweifel, 1958)
• Milne Big-eyed Tree Frog, Nyctimystes persimilis (Zweifel, 1958)
• Spurred Big-eyed Tree Frog, Nyctimystes pulcher (Wandolleck, 1911)
• Rueppel’s Big-eyed Tree Frog, Nyctimystes rueppelli (Boettger, 1895)
• Kokoda Big-eyed Tree Frog, Nyctimystes semipalmatus (Parker, 1936)
• Morobe Big-eyed Tree Frog, Nyctimystes trachydermis (Zweifel, 1983)
• Tyler’s Big-eyed Tree Frog, Nyctimystes tyleri (Zweifel, 1983)
• Zweifel’s Big-eyed Tree Frog, Nyctimystes zweifeli (Tyler, 1967)