ZOOLOGY. 



790 



Geckonidas — 

 Eublepharidae . 



TJroplatidso 



Pygopodidae . . . 



AgamitliB 



Ignanidas 



Xenosauridae .. 



ZonuridsB 



Anguidas 



Auiellidaj 



Helodcrmatidfe 



Vuraaida) 



Xantusiidae 



■JVaidsB 



xVmphisbajnidae 



LacortidsB 



Gerihosauridae 



Scincidae 



Auelj^ropidae.. 

 Dibamidae 



o 









 0(1) 





 X 

 X 

 X 

 X 

 X 





 X 





 X 

 X 





 X 

 X 

 X 















U3 



OCX) 

 





 

 

 



X 



X 

 

 

 



X 

 

 



X 



X 



var. 

 



C4 



1(2 



Ph 



2orl 



2? 



1 



(lox.oz.) 



1 

 1 

 1 

 1 



1(2) 

 (2ex.oz.) 

 (2ex.oz.) 

 2 

 2 

 1 

 2 



Pleur.. 

 ..do .... 



Pleur . . 

 Acrod. 

 Pleur. 

 ..do.... 

 -do.... 

 Var.-.. 

 Fangs . 

 .do.... 



Pleur . . . 

 Var. sol. 

 Var 



-i 



2d 



Minute. 



X 



X (-) 



2X 



2X 



2X (0) 



1(?) 



X 



IX 



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 

 grouped as follows : 



GecJconoidea. — Eriglossate saurians with the vertebrae bi-concave, a 

 clavical dilated, and loop-shaped proximally, 9,nd post-frontal and post- 

 orbital osseus arches undeveloped. 



{Geckonidw.) — 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- 

 frdntal squamosal arches. 



{EuhlepharidcB.) — The only known Eublepharoidea simulating in 

 external appearance the Geckonidie, but distinguished by the coalescence 

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

 tebrae. 



Uroplatoidea. — Eriglossate saurians with bi-concave vertebrae, clavi- 

 cles not dilated i)roximally, and without post-orbital or post-fronto 

 squamosal bony arches. 



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

 bones and a minute intiii'-clavicle. 



Pygopodoidea. — Eriglossate saurians with concavo-convex vertebraSj 



