Sherbrooke, Wade C.Frost, Sally Kay Viparina.2005-10-062005-10-061989http://hdl.handle.net/2246/510114 p. : ill. ; 26 cm.Bibliography: p. 12-14.5921047 bytesapplication/pdfen-USQL1 .A436 no.2943 1989Phrynosoma modestum -- Physiology.Chromatophores.Reptiles -- Mexico -- Chihuahuan Desert -- Physiology.Reptiles -- Physiology.Integumental chromatophores of a color-change, thermoregulating lizard, Phrynosoma modestum (Iguanidae, Reptilia). American Museum novitates ; ; no. 2943.text