A New Species of Marsupial Frog (Anura: Hylidae: Gastrotheca)
A new species of Gastrotheca from the southern end of the Cordillera Azul in Peru seems to be most closely related to G. lateollota known only from the Cordillera Huancabamba in northern Peru. Both of these species and G. marsupiata, monticola and peruana produce tadpoles, whereas the other species of Gastrotheea in Peruvian Andes have direct development.
Edgar Lehr, William E. Duellman, and Cesar Aguilar. "A New Species of Marsupial Frog (Anura: Hylidae: Gastrotheca)" The University of Kansas Natural History Museum Scientific Papers 22 (2001): 1-10.
Available at: http://works.bepress.com/edgar_lehr/43