TABLE OF CONTENTS. 



Paoe. 



DEDICATION ------ iii,iv 



TABLE OF CONTENTS ----------- v-vii 



PREFACE ------------- i>;-xvi 



1. BRACmOPODA INARTICULATA - - - 1 



LiNUULA -------------- 



IS 



LiNGULOPS ------------ 



LlNGOLASMA ----------- '-"-"^ 



Lakhmina ------------ -o 



Trimerella .-----------'a 



DiXOBOLUS ------------ -^1 



MONOMORELLA ------------40 



r> ----- 44 



Observations on the Develoi)mei)t of tlie Platform, etc. ----- 46 



LiNGULELLA ------------ 



KQ 



LiNOULEPIS ------------ 



Barroisei.la - 



TOMASINA ------------- 65 



Oboi.ella ------------ DO 



Leptobolus ----------- 



Elkania --------- -- '-> 



78 

 Paterula - 



Obolus ------------- 80 



aulonotreta ----------- 



00 

 ScHMIDTIA ------------ 



00 

 MONOBCLINA -------- 



84 

 Neobolus ---------- 



Spondylobolus ------- 



8fi 



MiCKWITZIA ------------ 



87 

 QO 



DiSCINOLEPIS ---------- 



.- ------- 90 



IVUTDRGINA ------ 



------ 94 



ScHIZOPHOLIS - - - - - 



05 

 Volborthia -----■■'" 



07 



IpHIDEA ----''■""■_'__. pg 

 ACROTHELE ------------ 



101 



ACROTRETA 



