@article {1009,
	title = {Verziechnis der bei Amani in Deutschostafrika vorkommenden Reptilien und Amphibien},
	journal = {Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin},
	volume = {1910},
	year = {1911},
	pages = {441-452},
	author = {Nieden, F.}
}
@article {820,
	title = {A comparative study of the herpetological faunae of the Uluguru and Usambara Mountains, Tanganyika Territory with descriptions of new species},
	journal = {Memoirs of the Museum of Comparative Zoology},
	volume = {L},
	year = {1928},
	pages = {85-265},
	author = {Barbour, Thomas and Loveridge, A.}
}
@article {149,
	title = {A new species of Callulina (Anura: Microhylidae) from the West Usambara Mountains, Tanzania},
	journal = {Journal of Herpetology},
	volume = {38},
	number = {2},
	year = {2004},
	month = {June 2004},
	pages = {219-224},
	abstract = {<p>The description of the species Callulina kreffti was based on specimens collected in the East Usambara Mountains of Tanzania. Successive collecting has shown this species to be widely distributed through the Eastern Arc Mountains. Advertisement calls from populations in the type locality of Callulina kreffti were compared with calls from populations in the West Usambara Mountains. Analysis of the calls suggested that these two populations of Callulina represent two separate taxa. Subsequent morphological and molecular investigations indicated that these two populations are distinct. Herein, we describe a new Callulina species on the basis of call, morphology and molecular sequences.</p>
},
	author = {De Sa, Rafael O. and Loader, Simon P. and Channing, Alan}
}
@article {899,
	title = {Callulina kreffti},
	journal = {In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. <www.iucnredlist.org>},
	number = {Downloaded on 16 June 2010.},
	year = {2004},
	author = {Howell, K. M. and Poynton, J.C. and Loader, S. and Menegon, M.}
}
@article {639,
	title = {A new brevicipitid species (Anura: Brevicipitidae: Callulina) from the fragmented forests of the Taita Hills, Kenya},
	journal = {Zootaxa},
	volume = {2123},
	year = {2009},
	pages = {55-68},
	author = {Loader, S.P. and Measey, G.J. and De Sa, R. O. and Malonza, P.K.}
}
@book {706,
	title = {Field Guide to Amphibians of the Eastern Arc Mountains and Coastal Forests of Tanzania and Kenya},
	year = {2010},
	pages = {320},
	publisher = {Camerapix Publishers International},
	organization = {Camerapix Publishers International},
	address = {Nairobi, Kenya},
	author = {Harper, E.B. and Measey, G.J. and Patrick, D.A. and Menegon, M. and Vonesh, J.R.}
}
