He was especially interested in the bivalves , on which he was a leading authority .
Sylvanus Hanley inherited a fortune , which enabled him to devote a lifetime to conchology .
Sylvanus Hanley was especially interested in the bivalves , on which Sylvanus Hanley was a leading authority .
Sylvanus Hanley inherited a fortune , which enabled him to devote a lifetime to conchology .