Iwana Manda Hugginkiss!
First of today's 妖怪 (yokai) is 貝ぶき坊 (Kaibu Kibou) who is a Conch-blowing Monk (with a conch as a proboscis) from the mountains of 岡山県 (Okayama-Ken). I can't find much of anything about him on the net except that he likes to eat frogs.
bestiary called 画図百鬼夜行 (Gazu Hyakki Yakō) showcasing the Ukiyoe art of 鳥山 石燕 (Toriyama Sekien ).
You oughtta check out this otter who has a robotic doppelgänger.
This guy is called いわな坊主 (Iwana Bouzu), a Char-Buddhist Monk who hails from 美濃・岐阜県 (Mino in Gifu-Prefecture).
This babe, 川赤子 (Kawa-Akago) is an infant monster that lurks near rivers and drowns people. Like most toddlers, this guy screams incessantly, wailing "オギャ!オギャ!" ("O-Gya!O-Gya!")
くらげの火の玉 (Kurage no Hi no Tama) is a jellyfish which floats through the air as a fireball! Cool!
マンダ (Manda) from 海底軍艦 (Kaitei Gunkan or Undersea Warship=Atragon). I happen to own a copy of the dvd with its accompanying magazine and a few photos thereof.
Here is a Manda figure as well for your enjoyment. It'd probably be impossible to make, but wouldn't it make a nifty costume?