. East coast marine shells : descriptions of shore mollusks together with many living below tide mark, from Maine to Texas inclusive, especially Florida, with more than one thousand drawings and photographs. Mollusks -- Atlantic Coast; Mollusks -- Florida. EAST COAST MARINE SHELLS 11 somewhere in the United States. The pres- ent financial secretary, Mrs. Iraogene C. Robertson, Buffalo Museum of Science, Buf- falo, New York will receive the nominal an- nual dues of one dollar. All readers are urged to join, attend the meetings if pos- sible and aid in the work the Union is do- ing for all. It i


. East coast marine shells : descriptions of shore mollusks together with many living below tide mark, from Maine to Texas inclusive, especially Florida, with more than one thousand drawings and photographs. Mollusks -- Atlantic Coast; Mollusks -- Florida. EAST COAST MARINE SHELLS 11 somewhere in the United States. The pres- ent financial secretary, Mrs. Iraogene C. Robertson, Buffalo Museum of Science, Buf- falo, New York will receive the nominal an- nual dues of one dollar. All readers are urged to join, attend the meetings if pos- sible and aid in the work the Union is do- ing for all. It is backed by the most emi- nent specialists and shell workers in the country. Nomenclature The international adoption of the binomial (two name) system as applied to every distinct species corresponds exactly to the use by mankind of the Christian and surname, as for Instance the generic Neri- tina (equal to the family name of Smith) and recllvata (its counterpart John). The . relative position of the two in usage, how- ever, is reversed. Thus we have Nerltlna recllvata Say; the proper name following, often abbreviated, representing the author who first described the species. In order to recognize the further variations of a given species the various forms which require names are described and we have, for example, Nerltlna recllvata sphaera Pilsbry, a geographical race v;hlch exhibits discernible characteristics but of insufficient character to deserve separate specific identity. A long series of speci- mens from scattered localities would con- nect the latter race with the typical form. Thus, striking colors and forms, within a given species, are, for convenience, named and placed upon record. This system is known as TRINOMIALISM. Certain schools have carried this method to excess, creat- ing entirely too many names, with resultant confusion. von Linne was not the originator of the binomial system but the first to apply it to the entire animal and vegetable king- dom and, in c


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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity