There are fully marine mammals and sub-marine mammals, this is only the fully marine mammals (Sirenids and Cetaceans).
Sirenia
There are only 3 manatee species and 1 dugong
Cetacea
There are 96 species of whale, dolphin, beaked whale, and porpoise.
That makes a total of 100 species exactly, but there are still species to discover.
There are currently 199,146 named species but there couldbe about 750,000 species.
Seals, walrus, polar bear, whales and dolphins, sea otter, dugong, manatee.
About 206 native species of terrestrial fauna (plus 7 introduced species). Of 206 native species, 117 are endemic. I don't have yet any idea about marine mammals in the Philippines. -------------------------------------------- x_tian_2010
There are many, possibly hundreds of species of mammals in Pennsylvania.
The habitats of mammals are quite diverse depending on the particular species. Most of them are land mammals but there are some which are marine mammals like whales and others which are amphibious like hippos.
That is the correct spelling of "marine species" (there are many for animals and plants).
FISH, aquatic mammals like sharks, dolphins, and swordfish/jellyfish. millions of species of fish are included in the marine/ocean
The only herbivorous marine mammals are the dugong and 3 species of manatees.
Dolphins
Birds-86 Mammals-107 Reptile-98 Amphibian-195 Freshwater Fish-530 Marine Fish-226
There are almost 6,000 species of mammals.
The only native (endemic) land mammals are a couple of species of bat.There are a number of marine mammals such as dolphins, seals, and so on.
Yes all marine mammals have eyelids.
Two species of bat are the only native land mammals in New Zealand. There is a number of species of marine mammals such as seals, dolphin, etc.