INDEX OF NAMES APPLIED TO THE CLASS, ORDERS, TRIBES, 

 FAMILIES, GENERA, SUB-GENERA, AND SECTIONS OF THE 

 BRACHIOPODA (EXCLUDING THE RUDISTES) PREVIOUS TO 

 THE YEAR 1877. 



By W. H. Dall, 

 United States Coast Survey, 



introd[jotio:n". 



The names herein enumerated comprise all the appellations which 

 have been given to the various divisions of the Brachio^oda as far as 

 they could be collected from the works accessible to me. It is believed 

 that the list is nearly complete so far as relates to names applied under 

 the Linnsean system of nomenclature. 



l!^on-binomial and pre-Linnaean names which have been quoted in syn- 

 onymy, errors of pen or types, and groups of similar appellation, but 

 differing in scope, have all been included so far as they are to be found 

 in the standard works on the subject. The number of names due to 

 typographical errors could have been largely increased had reference 

 been made to minor papers and publications, but this was not thought 

 necessary or desirable. Since some, and in fact most, of those indexed 

 have been quoted or printed in standard works on the subject, it would 

 have been inadvisable to have omitted them entirely. 



The object of the index is rather to enable students to construct their 

 own synonymy, according to such rules of nomenclature as they may 

 prefer, than to attempt a wholesale revision here. On this account, 

 the references have been freed, whenever possible, from expression .-* 

 of individual opinion, and are intended to convey an exact idea of 

 the facts. The notes which follow the references as explanatory mat- 

 ter are framed in accordance with the original rules of the British 

 Association, excepting that the date of the proposition of the Linncean 

 nomenclature is taken as from the tenth edition of the Systema Natura:^ 

 where (in my opinion) it properly belongs, instead of the twelfth edi- 

 tion, as originally proposed by the association committee. This differ- 



