( xviii ) 



tooth.) 

 without 



(Gr. " dis " double, " nodos " a toothless 

 spaco, and " odous " teeth.) Applied to a 

 set of teeth with two edentulous spaces. 



(Gr. " ektos " outside, " zoon " animal.) 

 Applied to parasites that infest the epi- 

 dermis of animals. 



(Lat. " e " = without, " dens " 



Applied to parts of the jaws 



teeth. 

 (Lat. "e" out of, " margo " the border.) 



Applied to a gap in the margin, such as a 



guard clips out of a ticket. 

 (Gr. " entos " within, "zoon" animal.) 



Used for parasites that infest the internal 



canities or organs of animals. 

 (Lat. " ex " out, "ovum " egg.) The act of 



hatching. 

 (Gr. " haima " blood, "zoon" animal.) 



Parasites that live in the blood. 



(Lat. "imbrex" a tile.) Overlapping like 

 the tiles on a roof. It is to be noted, 

 however, that the scales in snakes overlap 

 in a contrary direction to tiles on a roof. 



(Gr. " isos " equal, "odous" tooth.) 

 Applied to teeth that are sub -equal in 

 length. 



(Gr. " isos " equal, " morphe " form.) 

 Similar in shape. 



(Lat. " Juxta " by the side of, "pono" I 



place.) Side by side .like Jthe tiles on a 



floor. 

 (Gr. " kuma " wave, "odous" tooth.) A 



set of teeth reducing in length anteriorly 



and posteriorly. 



(Gr. " lepis " scale.) The shield and scale 

 vesture of a snake. 



The lower jaw. 



The upper jaw. 



(Gr. "nucha" nape.) The back of the neck. 



(Gr. " oinos " one, "nodos " a toothless 

 space, "odous" tooth.) With a single 

 gap anywhere in the dental array, except 

 behind. (See diacranterian.) 



* In studying the teeth, I find there is a dearth of suitable terms to 

 denote many variations of form and disposition. The writer, therefore, 

 suggests many to which he attaches an asterisk. 



*Dinododont. 



Ectozoa 



Edentulous 



Emarginat<-> 



Entozoa 



Exovation 



Hsematozoa 



Imbricate 



Isodont 



Isomorphous 

 Juxtaposed 



*Kumatoiont 



Lepidosis 



Mandible 

 Maxilla 

 Nuchal 

 *Oinododont 



