54 PROCEEDINGS OF THE ISTATIONAL MUSEUM TOL. 73 



Plate 12 



Ctenosaura brevirostris Cope. Head, body, and sacral region of adult male. 



U.S.N. M. No. 47933 



Plate 13 



C ienosaura brevirostris Cope. Half-grown n ale. Cotype, U.S.N.M. No. 24709 



Plate 14 



Ctenosaura parkeri Bailey. Adult female. Type, U.S.N.M. No. 18967 



Plate 15 



Heads of Ctenosaura parkeri Bailey (left), U.S.N.M. No. 18967, and C. brevirostris 

 Cope (right), U.S.N.M. No. 47933. Compare the length of the heads. Both 

 are adults 



Plate 16 



Ctenosaura si)nilis (Gray). Cotype of Ctenosaura completa Bocourt, Museum 

 d'Histoire Naturelle de Paris, No. 2252. Adult male 



Plate 17 



Ctenosaura similis (Graj')- Half-grown male, M.C.Z. No. 21102, and young male, 

 M.C.Z. No. 22669. Note the stripes on both 



Plate 18 



Ctenosaura similis (Gray). Adult female taken in March, 1927. Oviducts filled 

 with mature eggs. M.C.Z. No. 22624 



Plate 19 



Ctenosaura similis (Gray). Adult male, M.C.Z. No. 22625 



Plate 20 



Upper. Typical habitat of Ctenosaura similis (Gray). Punta, Paitilla, near 



Panama City, Panama 

 Lower. Typical habitat of Ctenosaura si^nilis (Gray). Punta, Paitilla, near 



Panama City, Panama 



Plate 21 



Ctenosaura bakeri Stejneger. Adult female. Paratype, U.S.N.M. No. 25324 



Plate 22 



Showing the dewlap of Ctenosaura: (a) bakeri, female, paratype, U.S.N.M. No. 

 25324; (6) palearis, male, topotype, M.C.Z. No. 22395; (c) palearis, female, 

 topotype, M.C.Z. No. 22392 



Plate 23 



Ctenosaura palearis Stejneger (left), female, M.C.Z. No. 22392; (right) male, M.C.Z 

 No. 22395. Adults. Topotypes 



Plate 24 



Ctenosaura quinquecarinata (Gray) . Sacral region and tail of type. Brit. Mus. Nat 

 Hist. No. 61. Dried skin, adult male 



