Ptychadena nana Perret, 1980, Monit. Zool. Ital., N.S., Suppl., 13: 160. Holotype: ZMB 26878H, by original designation. Type locality: "'Somaliland', Didda, Est Plateau, Arussi, Ethiopia, 2000-3000 m".
Rana (Ptychadena) nana — Dubois, 1981, Monit. Zool. Ital., N.S., Suppl., 15: 233. by implication.
Ptychadena (Ptychadena) nana — Dubois, 1992, Bull. Mens. Soc. Linn. Lyon, 61: 316.
Somali Grassland Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 105).
Smallest Grass Frog (Largen and Spawls, 2010, Amph. Rept. Ethiopia Eritrea: 191).
Known only from the type locality in the Arussi Mountains of the Ethiopian highlands east of the Rift.
Holotype originally in syntypic series of Ptychadena neumanni according to L. J. Borkin in Frost, 1985, Amph. Species World: 473. Largen, 2001, Tropical Zool., 14: 339-340, commented on distribution and difficulty in identification. See account and map for Ethiopia by Largen and Spawls, 2010, Amph. Rept. Ethiopia Eritrea: 191, for this species that has not been collected since 1900.
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