"E" is for "Eelwolf"

Eelwolf

No. Enc.:  2d6 (3d6)
Alignment:  Neutral
Movement:  180' (60')
      —Swim:  120' (40')
Armor Class:  7 (See Below)
Hit Dice:  4
Attacks:  1
Damage:  1d10
Save:  L4
Morale:  9
Hoard Class:  None
XP:  355

Equally at home on land or in water, the predatory eelwolves are encountered in forests, jungles, and swamps.  Their gurgling, rasping howls echo across the wasteland nightscape.

Eelwolves' agile canine builds, combined with sinuous musculature and sleek, slimy skin, grant the creatures an AC of 4 in melee (while being AC 7 at range).  Their diverse coloration also tends to match their environs, granting them Surprise on 1-4 on 1d6 and +1 to Initiative.  When pursuing prey, and eelwolf can compress and wriggle through an opening one-fourth its size.

Eelwolf hides can be made into leather armor (AC 7) that grants a +1 to DEX and an immunity to electrical-based attacks.

Mutations:  Energy Ray (Electricity), Enhanced Vision (Night), Reflective Epidermis (Electricity)