Uhhh.. No.
We're talking about the hive mind here.. A 'being' that can and does custom create enough different types of tyranid that they can consume an entire planet's worth of bio systems. Think about how many THOUSANDS of species that must be created just consume a single earthlike planet. Everything from the microspores to the insect/rippers to the little to the big bugs adapted for Ocean, fresh water, ice, cold, desert and everything in between... on the fly. Now the fact that we are limited to a few dozen (score) variations of them for our army doesn't mean that there wouldn't be LOTS that are stranger than those that we have.
Tervigon --- Eats bio mass in HUGE quantities as it lumbers down the field and lays eggs that hyper mature and hatch gaunts.. the entire process takes about 1 minute and the gaunts springing into action immediately will burn out and die of 'old age' in about 30 more minutes... well after the battle.
There are lots of ways to 'explain' each of the 'nids you mentioned. With millions of possibilities on EACH planet.. Anything can be created by the Hivemind!
-Dragons
We're talking about the hive mind here.. A 'being' that can and does custom create enough different types of tyranid that they can consume an entire planet's worth of bio systems. Think about how many THOUSANDS of species that must be created just consume a single earthlike planet. Everything from the microspores to the insect/rippers to the little to the big bugs adapted for Ocean, fresh water, ice, cold, desert and everything in between... on the fly. Now the fact that we are limited to a few dozen (score) variations of them for our army doesn't mean that there wouldn't be LOTS that are stranger than those that we have.
Tervigon --- Eats bio mass in HUGE quantities as it lumbers down the field and lays eggs that hyper mature and hatch gaunts.. the entire process takes about 1 minute and the gaunts springing into action immediately will burn out and die of 'old age' in about 30 more minutes... well after the battle.
There are lots of ways to 'explain' each of the 'nids you mentioned. With millions of possibilities on EACH planet.. Anything can be created by the Hivemind!
-Dragons