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

ienosaurabrevirostrisCope. Half-grown nale. Cotype,U.S.N.M. No.24709 Plate 14

Ctenosaura parkeri Bailey. Adultfemale. Type, U.S.N.M. No. 18967 Plate 15

HeadsofCtenosauraparkeriBailey(left),U.S.N.M. No. 18967,andC. brevirostris

Cope (right), U.S.N.M. No. 47933. Comparethe lengthoftheheads. Both are adults

Plate 16

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

Museum

d'Histoire Naturellede Paris, No. 2252. Adult male Plate 17

Ctenosaurasimilis (Graj')- Half-grownmale, M.C.Z. No.21102,and youngmale, M.C.Z. No. 22669. Note thestripes onboth

Plate 18

Ctenosaura similis (Gray). Adult female taken inMarch, 1927. Oviductsfilled

withmatureeggs. M.C.Z. No. 22624 Plate 19

Ctenosaurasimilis (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 PanamaCity,

Panama

Plate 21

Ctenosaura bakeriStejneger. Adultfemale. Paratype, U.S.N.M. No. 25324 Plate 22

Showingthedewlap 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

CtenosaurapalearisStejneger(left),female,M.C.Z. No.22392;(right)male,M.C.Z No. 22395. Adults. Topotypes

Plate 24

Ctenosaura quinquecarinata (Gray)^. Sacral regionandtailoftype.Brit.Mus.Nat

Hist.No.61. Driedskin,adultmale

ART.12 REVISION OF LIZARDS OF

GENUS CTENOSAURA

BAILEY

55

Plate 25

Ctenosauraqiiinquecarinata(Gray). Sacral regionandtailofalcoholicspecimen, Brit.Mus.Nat.Hist. No. 33,adultmale

Plate 26

Ctenosaura qiiinquecarinata (Gray). U.S.N.M.No.30561. Adultmale Plate 27

Ctenosauraclarlci Bailey. Type, M.C.Z. No. 22454. Adult male Plate 28

Ctenosaura erythromelas Boulenger. Type, Brit. Mus.Nat.Hist. No. 1. Adult male

Plate 29

Ctenosaura erythromelas Boulenger. Sacral region and tailofthe type. Brit.

Mus.Nat. Hist. No. 1. Adultmale Plate 30

Ctenosaura defensor (Cope). Adult male, M.C.Z. No. 7095

U. S. NATIONALMUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 1

Headand Bodyof Female ofCtenosaura acanthura

For description ofplate see page 52

88910—28 5

U. S. NATIONAL MUSEUM PROCEEDINGS,VOL. 73, ART. 12. PL. 2

Sacral Region and Tailof Femaleof Ctenosaura acanthura

For descriptionof plate seepage 62

U. S. NATIONALMUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 3

Half-grown Male ofCtenosaura acanthura

For DEScRiPTroNof plate see page62

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 4

Adult

Male

of Ctenosaura acanthura

For description of plate seepage 52

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12 PL.5

Adult Male of Ctenosaura hemilopha

For description ofplate see page 52

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 6

Stuffed Skin of Adult FemaleofCtenosaura brachylopha

For description of plate see page52

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 7

Headand Bodyof Adult

Male

of Ctenosaura pectinata

For descriptionof plate see page52

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL.

Adult

Male

of Ctenosaura pectinata

For description ofplate see page 52

U. S. NATIONALMUSEUM PROCEEDINGS. VOL. 73. ART. 12. PL. 9

Adult

Male

of Ctenosaura pectinata

For descriptionof plate see page52

U. S. NATIONAL MUSEUM PROCEEDINGS. VOL. 73, ART. 12. PL. 10

Adult Female of Ctenosaura pectinata

For description of plateseepage 52

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 11

Femoral Poresof Female ofCtenosaura pectinata

Femoral PoresofAdult

Male

ofCtenosaura pectinata

For description of plate see page 52

U. S. NATIONAL MUSEUM PROCEEDINGS, _VOL. 73, ART. 12. PL. 12

Adult

Male

ofCtenosaura brevirostris

For descriptionof platesee page 53

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 13

Half-grown

Male

ofCtenosaurabrevirostris

For description of plate see page⁵³

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. FL. 14

Adult Female of Ctenosauraparkeri

For description ofplate see page 53

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 15

Heads of Ctenosauraparkeri (left) and C. brevirostris (right) For DESCRIPTfON OF PLATE SEE PAGE 53

U. S. NATIONALMUSEUM PROCEEDINGS,VOL. 73, ART. 12. PL. 16

Adult

Male

of Ctenosaurasimilis For descriptionof platesee page53

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 17

Half-grown

Male

and Young

Male

ofCtenosaurasimilis For description of plate see page53

88910

—

²⁸ 6

U. S. NATIONALMUSEUM PROCEEDINGS, VOL.73, ART.12. PL. 1{

Adult Female of Ctenosaurasimilis For descriptjonof plate see page53

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 19

Adult

Male

of Ctenosaura similis For description of plate seepage 63

U. S. NATIONAL MUSEUM PROCEEDINGS. VOL. 73, ART. 12. PL. 20

Typical Habitatsof Ctenosaurasimilis For description of plate seepage 53

U. S. NATIONAL MUSEUM PROCEEDINGS,VOL. 73, ART. 12. PL. 21

Adult Femaleof Ctenosaura bakeri

For description of plate see page 53

U.S. NATIONALMUSEUM PROCEEDINGS,VOL. 73, ART. 12. PL.22

The Dewlapof («) Ctenosaura bakeri, Female; (6) C. palearis, MALE;^(c) C. palearis, FEMALE

For description of plate see page 63

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 23

IAdultsOF Ctenosaura!palearis[(left) Female; (right)

Male

For description ofplate seepage 53

U. S. NATIONALMUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 24

U. S. NATIONALMUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 25

Sacral Region of Adult Male ofCtenosaura quinquecarinata

For descriptionofplate seepage54

U. S. NATIONALMUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 26

Adult

Male

of Ctenosaura quinquecarinata

Fordescription ofplate see page5t

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 27

Adult

Male

of Ctenosauraclarki

FOR DESCRIPTION OF PLATE SEE PAGE54

U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 28

Adult

Male

of Ctenosaura erythromelas

Fordescriptionofplate see page54

U. S. NATIONALMUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 29

Adult

Male

of Ctenosaura erythromelas

For descriptionofplate see page54

U. S. NATIONALMUSEUM PROCEEDINGS, VOL. 73, ART. 12. PL. 30

Adult

Male

of Ctenosaura defensor

Fordescriptionofplate see page64