i8 



season the inner side of the first two fingers and of the 

 strong metacarpal tubercle covered with black spines. In the 

 female the two inner fingers are lobate. Length 80 mm. 



Habitat: Aru islands; New Guinea (Mansiman ! ; Hatam, 

 Arfak mts. ! ; Mamberamo riv. ! ; near Idenburg riv., + 1800 m.!; 

 Tor riv. I ; Fife bay; Vikaiku, St.-Joseph riv.). 



2. Fam. Cystignathidae. 



Upper jaw usually toothed, lower nearly always toothless. 

 Diapophyses of the sacral vertebra not or slightly dilated. 

 Terminal phalanges of fingers and toes simple or T-shaped, 

 not claw-shaped. 



Omosternum cartilaginous, sometimes rudimentary; sternum 

 usually cartilaginous; it may be more or less calcified and 

 has rarely a bony style. Vertebrae generally procoelous. No 

 ribs. Os coccygis articulating by two condyles. 



Distribution: S.-, Central- and southern N. -America; 

 southern Africa; Australia; New-Guinea. 



Synopsis of the Genera. 



A. Vomerine teeth in two long; transverse series beliind 

 the choanae. 



I. Toes slightly webbed. Tympanum perfectly distinct, i. Pliancroiis p. i8. 

 II. Toes free. Tympanum feebly distinct 2. Raiiastcr p. 19. 



B. Vomerine teeth very slightly developed, or absent ... 3. Cr'ni'ia p. 21. 



I. Phanerotis Blgr. 



(BouLENGER, Proc. Linn. Soc. N.-S. -Wales, (2) V, 1891, p. 593). 



Pupil horizontal. Tongue entire and free behind. Upper jaw 

 toothed, lower toothless; vomerine teeth in two long trans- 

 verse series behind the choanae. Tympanum perfectly distinct. 

 Fingers free, toes with a very slight rudiment of web, the 

 tips slightly swollen. Outer metatarsals united. 



Omosternum and sternum cartilaginous. Diapophyses of sacral 

 vertebra slightly dilated. Terminal phalanges simple. 



Distribution: New Guinea; Australia. 



I. Phanerotis fletcheri Blgr. 



Phanerotis Fletcheri Boulenger, Proc. Linn. Soc. N.-S.-Wales, (2) V, 1891, p. 593. 



