It is the purpose of this paper to discuss briefly the distribution and natural history of E. granuloslls and E. lIlultiiocularis, to define the developmental and morphological characteristics of these Cestodes in their natural hosts, and to describe some of the
variants observed in mammals of the other species; to review criteria that have been used in defining taxa at the infraspecific level, and to consider the validity of the proposed subspecies of Echinococcus spp.
From: Fortuine, Robert et al. 1993. The Health of the Inuit of North America: A Bibliography from the Earliest Times through 1990. University of Alaska Anchorage. Citation number 2076.