| why museums matter: a tale of pinworms (oxyuroidea: heteroxynematidae) among pikas (ochotona princeps and o. collaris) in the american west. | permanent and well-supported museum or natural history collections provide a solid foundation for the process of systematics research through creation of an empirical record which validates our understanding of the biosphere. we explore the role of museums in ongoing studies of the complex helminth fauna characteristic of pikas (ochotona spp.) in the american west. these studies address the taxonomy for pinworms of the labiostomatinae and the problems associated with the absence of adequate type ... | 2009 | 19593896 |