ZOOLOGY. 



799 



G«ckonid8e 



EublepharidiB 



UropUitidaj 



Pygc>podid8B 



AgamidsB X 



IfmanidsB X 



Xenosauiida) X 



ZonuridsB X 



Anguidan X 



Aniellidae i 



HelodormatidsB . 



Varauidae 



Xantusudie 



ToiidiB 



AniphisbaenidfB . 



Lacjertidai 



Gerrhosauridae . 



ScincidaB 



Auelytropidas . . . 

 DibamidaB 





 



0(1) 

 

 X 

 X 

 X 

 X 

 X 

 

 X 

 

 X 



^x 



* 



X 

 X' 

 X 

 

 



0(X) 

 



■3 ° 



2 



1 



2 

 1(2) 

 1 

 1 

 1 

 1 

 1 

 1 

 ] 

 1 

 2 

 1 

 ] 



Ph 



2orr 



2? 



1 



(lex.oz.) 



1 



1 



1 



1 



1(2) 



(2ei.oz.) 



(2ex.oz.) 



2 



2 



1 



2 



Pleur . 

 ..do ... 



Pleur . . 

 Acrod. 

 Pleur. 

 ..do ... 

 ..do ... 



Var 



Fangs . 

 -do.... 



Pleur... 

 Var. Bol. 

 Var 



2d 



Minute. 



X 



X (— ) 



2X 



2X 



2 X (0) 



U?) 



X 



1 X 

 2X 



2 X 

 2 0(r) 



Throwing- these characters into diagnostic forms, economy of words 

 and a better idea of the generality of characters may be obtained by 

 recognizing a category called super-family. Under such headings those 

 forms which exhibit exceptional characters may be segregated from the 

 great mass. 



The various families recognized by Dr. Boulenger may be found 

 grou{)ed as follows : 



Geckonoidea. — Eriglossate sauriaus with the vertebrae bi-concave, a 

 clii vical dilated, and loop-shaped proximally, and post-frontal and post- 

 orbital osseus arches undeveloped. 



{Oeckonidcv.) — The only Geckonoidea known having the parietal bones 

 double. 



Eublepharoidea, — Eriglossate saurians with concavo-convex vertebrae, 

 clavicle dilated and loop-shaped proximally, and no post-orbital or post- 

 frontal squamosal arches. 



{Eitblepharidw.) — The only known Eublepharoidea simulating in 

 external appearance the Geckonidaj, but distinguished by the coalescence 

 of the parietals into a single bone, as well as by the concavo-convex ver- 

 tebrai. 



Uroplatoidea.— Vjriglossnte saurians with bi-coucave vertebra;, clavi- 

 cles not dilated pro.ximally, and without post-orbital or post-frouto 

 squamosal bony arches. 



{Uroplatidce.) — The only known Uroplatoidea having two parietal 

 lioiies and a minute inter-clavicle, 



Pyyopodoidea. — Eriglossate sauriaus ^vith concavo-convex vertebrte, 



