336 EATIT^E. 



of the intervening channel, the stoutness and shortness of 

 the centrum, and the narrow and elevated contour of its 

 posterior articular surface, in "which the lower lip is 

 produced. 



32150b. A larger middle cervical vertebra; apparently the 15th 

 of the series. In this specimen the superior lateral arch, 

 which may be observed in the preceding specimen behind 

 the prczygapophyses, has disappeared. 



3215 1 c. A later middle cervical vertebra ; apparently the sixteenth. 



In this specimen the hsemal ridges of the lateral arches 

 are still strongly developed. 



32149 d. A smaller and earlier (? 14th) middle cervical vertebra. 

 This specimen, in which the superior lateral arch is re- 

 tained, is very short and stovit, and may be specifically 

 distinct from the preceding. 



32149 e. A middle cervical vertebra, agreeing in size with and ap- 

 parently succeeding the preceding. The superior lateral 

 arch has disappeared; the haemal ridges of the lateral 

 arches are large. 



32152 a. An early jiosterior cervical vertebra ; probably about the 



17th. The haemal ridges have nearly coalesced. 



32153 a. A posterior— apparently the 17th— cervical vertebra. 



There is a low hsemal spine, and the channel between the 

 postzygapophyses has become deeper. 



32177 a. The eighteenth cervical vertebra, slightly imperfect. The 

 characters are almost identical with those of the corre- 

 sponding vertebra of Anomalopteryx parva. The ha-mal 

 spine is enormous. 



32151 d. A vertebra which is apparently an abnormal example of 

 the 18th cervical. The centrum is concave longitudinally, 

 and there are two lateral ridges in place of the h»mal 

 spine. 



32177 a-1. An imperfect penultimate (19th) cervical vertebra, 

 agreeing in size with 32177 a. 



32153 b. A last (20th) cervical vertebra, wanting the summit of 

 the neural spine. This specimen agrees in size with 

 No. 32177 a, and indicates a large individual. The for- 

 ward inclination of the neural spine is shown. 



