15. Found between Cambden and Haddonfield, _Trifolium pratense_, _Silene virginica_, _Antirrhinum canadense_, _Lithospermum tenellum_, Raf., _Festucatenella_, _Seleranthus annuus_, _Oxalis biflora_, Raf., _Poa rubra_, _Vaccinium corymbosum_, _Viola palmata_, _V. parvifolia_, Raf., _Rubus flagellaris_, &c. Also in blossom, _Quercus rubra_, _Q. obtusiloba_, _Q. alba_, &c. 20. Found near Burlington, _Plantago virginica_, _Euphorbia ipecacuanha_, _Comptonia asplenifolia_, _Myosotis lappula_, _Senecio obovatus_, _Scirpus acicularis_, _Lithospermum trinervum_, Raf., _L. tenellum_, Raf., &c.; besides several _Carex_. ART. XVII. _Description of a New Species of North American Marten_, (_Mustela vulpina_) by C. S. RAFINESQUE. The regions watered by the Missouri are inhabited by many animals, as yet unknown to the zoologists, although many have been noticed by travellers. A species of marten has lately been presented to the Lyceum of Natural History in New-York, which was brought from that country, and appears to belong to a peculiar species, very different from the common martens of Europe, Asia, and America, although it has, in common with it, the character of the yellow throat; but the head, feet, and tail, afford so many peculiar characters, that no doubt can be entertained of its diversity. I have, therefore, given to it the name of _Mustela vulpina_, or Fox Marten, owing to its head and tail being somewhat similar to that of a fox. _Mustela Vulpina._ Definition--Brown, three large yellowish spots underneath on the throat, breast, and belly; cheeks, inside of the ears, and a spot on the nape, white; tail tipped with white one-third of total length; feet blackish, toes white.