The parasitic Nematodes include by far the greatest number of the known genera; they are found in nearly all the orders of the animal kingdom, but more especially among the Vertebrata, and of these the Mammalia are infested by a greater variety than any of the other groups.
The marine mammalia are numerous.
The only wild mammalia in the island are the hedgehogs, two species of weasel, the Norway rat, and the domestic mouse.
Scott, Mammalia of the Santa Cruz Beds, Edentata, Rep., Princeton Exped.
It may here be remembered that of the mammalia man and monkeys alone are capable of convergence, and have a circumscribed macular area.
Though among mammalia - as also in the case of the birds - there are but few forms peculiar to the Alps, many interesting animals have found in the high mountains at least a temporary refuge from man.
Man shares with the mammalia and birds the direct expression of the feelings by emotional tones and interjectional cries; the parrot's power of articulate utterance almost equals his own; and, by association of ideas in some measure, some of the lower animals have even learnt to recognize words he utters.
His chief distinctions, however, were won in the realms of anthropology by his researches into the lives of the cave-dwellers of prehistoric times, labours which have borne fruit in his books Cave-hunting (1874); Early Man in Britain (1880);(1880); British Pleistocene Mammalia (1866-1887).
The only indigenous land mammalia are a small rat and a few curious species of bats.
This branch of the science has reached the highest development in its application to the history of the extinct mammalia of the Tertiary through the original work o Cope and Henri Filhol, which has been brought to a much higher degree of exactness recently through the studies of H.