Sounds good. Updated.
Here's the next one...
Barrel spider
FREQUENCY: Uncommon
NO. APPEARING: 1-8
ARMOR CLASS: 4
MOVE: 3”*12”
HIT DICE: 4 + 4
% IN LAIR: 70%
TREASURE TYPE: C
NO. OF ATTACKS: 1/1
DMG/ATTACK: 2-8
SPECIAL ATT.: See text
SPECIAL DEF.: Nil
MAGIC RES.: Standard
INTELLIGENCE: Animal
ALIGNMENT: Neutral
SIZE: L
PSIONIC ABILITY: Nil
Barrel spiders
This spider’s pedipalps are greatly extended so they sometimes act as an extra pair of legs. The body is covered with a pale yellow film of hairs, making the spider especially sensitive to changes in air pressure and thus very difficult to surprise (roll of 1 on d8). The chelicerae are very strong; the garden variety (normal spider-sized) can crack a beetle’s armor. The giant version of this spider can crack open non-magical plate armor, or pierce non-magical leather or chainmail, on a roll of 1 or 2 on d6, while cracking or piercing magical armor requires a roll of 1 on d6; cracking or piercing armor in this manner lowers its effective armor class to 10. A ring of protection, cloak of displacement, or other similar protection will function normally.
When cornered, this spider hisses, though she does not spit poison. Treat this attack as for a bombardier beetle, with a 20% chance of stunning anyone within a 16’ radius and deafening those not stunned. Stunning lasts for 2-8 rounds, followed by 2-8 rounds of deafness. Those only deafened remain so for 2-12 rounds.
I can't locate a "barrel spider" in Wikipedia or via a quick Google search (beyond those that have appeared in videogames). Any ideas upon what this is based?