Lantis, Margaret, [74]

Larus

argentatus smithsonianus, [68]

delawarensis, [68]

Ledum decumbens, [33] (fig.)

Lemmings (Dicrostonyx), [48], [69]

Lepus arcticus andersoni, [69]

Lice (or louse), [73], [74]

Lichens, [37], [38], [44], [45], [51], [98], [99]

reindeer, [24], [44], [99]