BioStor
Heleophryne regis Hewitt, 1910
 | A revised list of the South African reptiles and batrachians, with synoptic tables, special reference to the specimens in the South African Museum, and descriptions of new species G A Boulenger (1910) Ann. South African Mus. 5: 455-538 |
 | Description of Heleophryne natalensis, a new batrachian from Natal; and notes on several South African batrachians and reptiles John Hewitt (1913) Annals of the Natal Museum 2(4): 475-484 |
 | Further studies on the Opalinid ciliate infusorians and their hosts (1940) Proceedings of The United States National Museum 87: 465-634 |
 | Evolutionary relationships, osteology, and zoogeography of leptodactyloid frogs J D Lynch (1971) Miscellaneous Publications of the University of Kansas Museum of Natural History 53: 1-238 |