The Species of Recent Mollusca Described by 

 Augustus Addison Gould 



With Their Original References and Type Localities, Including the Location 

 of the Types When Known 



This catalog is arranged alphabetically by species and includes the 

 original genus, the year and place of description (when required the 

 month can often be determined by checking the bibliography of Gould 

 in this paper), the type locality and collector (in parentheses), and the 

 original measurements. Reference is made also to the first figure of a 

 type if not originally figured. Further, the kind of type found is 

 stated — holotype, paratype, syntype, lectotype, ideotype, metatype — 

 with its museum number. 



The terms ideotype [idiotype] and metatype are unfamiliar enough 

 to require some explanation. An ideotype is any specimen identi- 

 fied by the original author as his own. A metatype is any specimen 

 identified by the original author as his own from the type locality. In 

 general, these categories have been employed only when no primary 

 types were found. 



Some of Gould's measurements were given in the original descrip- 

 tions as "poll." (pollex= thumb). This is equal to one inch or 25.4 

 mm. All the measurements given in this list appear as they did 

 originally, some in poll., or inches (e.g., long. 2%, lat. 1, alt. 1% in.), and 

 some in millimeters (e.g., long. 20, alt. 17, lat. 12 mm.). In the plate 

 legends, however, all measurements are in millimeters (mm.) and refer 

 to the specimen figured here, whether holotype or lectotype. Meas- 

 urements of gastropods represent the maximum height and maximum 

 width. Gould used a number of terms in his measurements: height or 

 axis; diameter or width; long., alt., lat. — or length, height, width. 

 On the place legends height and width are used for the gastropods; 

 length, height, and width, for the pelecypods. 



I have not attempted to locate every paratype and syntype though 

 I have included in this list most of those found in the United States 

 National Museum and the Museum of Comparative Zoology. Once 

 the holotype was located, the search for paratypes seemed less urgent. 



All locality data in brackets contained in the present report are 



additions to already published records. This bracketed material has 



been obtained from original labels or "The Columbia Lippincott 



Gazeteer of the World" (1952), the "Encyclopaedia Britannica 



34 



