Regarding 28)Hierytha Storie new device...a lemming salient

According to the OED the earliest reference to lemmings is in Olaus Magnus Hist.de Gentibus Septentr. (i.e. "History of the Northern Peoples") 1555: xviii.xx.617.

"Quod in Noruegia...euenit, scilicet ut bestiolae quadrupedes, lemmar, vel lemmus dictae, magnitudine soricis, pelle varia, per tempestate & repentinos imbres e caelo decidant"

This is translated in Topsall's Fourfooted Beastes, 1607: 727

"certaine little fourfooted beastes called Lemmar or Lemmus, which in tempestuous and rainy weather, do seeme to fall downe from the cloudes"

The form "leming" does not appear until 1713.

It appears that the beast was known in late period, though if we wished to be pedantic we could insist on calling it a lemmus.