170 EOCENE AND LOWER OLIGOCENE CORAL FAUNAS. 



The following are the measurements of these specimens : 



One of these specimens, No. 4 of above table, has the calice very well 

 preserved. It is shallow, and has the columella projecting upward in its 

 bottom. 



At first I considered this coral a good species and placed it in the genus 

 Eupsammia, but a careful comparison of a large number of specimens of the 

 var. mortoni showed perfect intergradation, 



Balanophyllia irrorata var. coniformis var. nov. 



PI. XIX, figs. 11 and 11a. 



The specimen represented by PI. XIX, fig. 8, indicated a transition 

 from the type of var. mortoni to var. coniformis. The figure of the latter 

 variety is drawn looking at the end of the greater transverse axis. It is 

 near the ends of this axis that every fourth costa is so much more accented 

 than the intervening costse. The costre of this variety present no characters 

 especiall}^ different from typical var. mortoni, except that some of those 

 corresponding to the first, second, and third cycles of septa are more promi- 

 nent than those corres})onding to the fourth and fifth cycles. The real 

 difierence between the two varieties is merely the form. The corallum of 

 A-ar. coniformis is almost straight, slightly compressed conical, with a, small 

 area of attachment surmounted by a very short pedicel. The circumference 

 of the calice is proportionately to the height of the corallum much greater 

 than in var. dlchotonxi. 



The excellent collection made bj^ Mr. C. W. Johnson in Texas, for the 

 Wagner Institute of Science, shows that this variety passes directly into the 

 Var. mortoni. 



Locality. — Smitliville, Texas. 



Horizon. — Lowcr Claibome. 



Type. — Collection of Wagner Free Institute of Science, Philadelphia. 



