Phrynodon sandersoni Parker, 1935, Ann. Mag. Nat. Hist., Ser. 10, 16: 403. Holotype: BMNH 1907.5.22.76, by original designation and according to J.-L. Perret in Frost, 1985, Amph. Species World: 443. Type locality: "5 miles inland from Kribi, S. Cameroon".
Phrynobatrachus sandersoni — Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 366.
Sanderson's Hook Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 104).
Southwestern Cameroon and Equatorial Guinea; Bioko.
See brief account in Perret, 1966, Zool. Jahrb., Jena, Abt. Syst., 93: 368-369. De la Riva, 1994, Rev. Esp. Herpetol., 8: 134, provided a record for Equatorial Guinea. Lasso, Rial, Castroviejo, and De la Riva, 2002, Graellsia, 58: 21-34, provided notes on ecological distribution in Equatorial Guinea. Frétey, 2008, Alytes, 25: 99-172, summarized the literature. In species group A of Zimkus, Rödel, and Hillers, 2010, Mol. Phylogenet. Evol., 55: 883-900.
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