280 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37. 



SYNONYMOUS NAMES. 



The student of the preceding list, familiar with the names contained 

 in Orbigny's "Voyage," will miss a number of names which he 

 would naturally have expected to find. It would have broken up the 

 unity and conciseness of the faunal list to have it include any synonym}^ 

 not necessary to the references given, i. e., the name used at the time 

 of the description of the species and that used in connection with one 

 or more good figures of the species. In order that the student may 

 be able to identify synonyms with the name adopted in the list, an al- 

 phabetical summar}^ of the chief synonyms is here given. The sum- 

 mary does not claim to contain all synonyms, for the work of bring- 

 ing them together would have amounted to a monograph of the Peru- 

 vian provincial mollusk fauna, for which at present time could not be 

 spared. Nor is the accuracy of this summary more exact than it could 

 be made during the search of the literature and the comparison of the 

 species in the collection of the U. S. National Museum. A thorough 

 and complete study of the fauna would doubtless reveal the necessity 

 for a certain number of changes. The present summary may be re- 

 garded as a step toward a future monograph. I have profited much 

 in preparing it by the data given in Tryon^s Manual, especially the 

 volumes due to Dr. H. A. Pilsbry, without invariably accepting the 

 decisions in that work. The works cited in the bibliograph}" preced- 

 ing the Faunal List have been carefully examined, together with many 

 others which will be found cited in the List, and it is believed that 

 nearly all the conspicuous synon^^ms will be found in the following 

 summarv. In adopting generic names the International Code of Rules 

 for Zoological Nomenclature has been rigidly adhered to, and, while 

 it would be too much to expect that absolute accuracy has been at- 

 tained, the author has done his best in that direction. Eight hundred 

 and sixty-nine species are cited in the Faunal List, and for the whole 

 about 650 synonyms have been noted. This would indicate that the 

 nomenclature is in a tolerably satisfactory state. 



SUMMARY OF THE CHIEF SYNONYMS. 



Acmaea cymbula Hup^^Scurria scurra Lesson. 



Acmaea nisoiia Philippi= J. viridula Lamarck. 



Acmaea plana Philippi, not Reeve=^. viridula Lamarck. 



Acmaea pretrei Ovhigny^ A. viridnla Lamarck. 



Acmaea punctatissima Fh\\ippi= Scurria jmraaitka Orbigny. 



Acmaea spectrum AVimmer=^. variabilis Sowerby. 



Aeolis auctorum, of. Aeolidia Cuvier. 



Amalthea Schumacher, not Amallheus 'Moi\iiovi= Hipponix Defrance. 



Amphidesma croceum Gon\d= Semcle solida Gray. 



Amphidesma orbiculare Hup^=,S'eme/e solida Gray. 



AmyxaTrosche\=Prisogaster Morch. 



Anomia electus Gray=^. peruviana Orbigny. 



