262 EDWIN CHAP1N STARRS. 



riorly bending up at the sides and leaving only a very small space 

 between it and the frontal ; three tooth bearing superior pharyn- 

 geals present on each side ; not connected to form a single patch ; 

 the first very small, the last two very much larger and equal in 

 size ; lower pharyngeals loosely in contact at the median line ; 

 the last basibranchial bearing teeth similar to those on the lower 

 pharyngeals ; hyoid bones all present and normal ; vertebrae 

 nvmber 14+ 16=30; neural and haemal spines all ankylosed 

 to the vertebral centra ; the spines of only two vertebrae anterior 



