by William Swainson, Zoological Illustrations Series II… (1829)
“ It is gratifying to us to inform the scientific student, that its contents will be thrown open to his enquiries with a promptitude and liberality, which he will in vain look for at some of the Zoological Institutions of the metropolis.Our friend Henry Parker, Esq. of Liverpool, who while prosecuting his botanical researches in Demerara, was not unmindful of conchology, favoured us with an interesting series of specimens from that river, clearly shewing that the A. fasciata and canaliculata of Lamarck are varieties of one species ”
