Beleave it or not, according to "Wikipedia, the free encyclopedia", in "Kamen Rider Hibiki" there were Makamou that never appeared in the show or the movie. So, I decided to do some sketches of what I think they would look like.

Ōkubi ( オオクビ ): A wasp Makamo referred in one of the Takeshi data files. Though an Ookubi didn't appear on the show in person, it does appears in video game version "Let's TV Play Series".
I made this one a Giant-Type with it's own Douji ( 童子 ) & Hime ( 姫 ).

Bakekarasu ( バケカラス ): A crow Makamo referenced in the show. I made this one a Summer-Type.

Wanyūdō ( ワニュウドウ ): A wheel Makamo, its aspects were placed on the the Kasha. I made this one an Experimental-Type.

Ōmukade ( オオムカデ ): A centipede Makamo that didn't appear on the show. I made this one an Experimental-Type.

Ōnyuudou ( オオニュウドウ ): A octopus Makamo appeared in the Kamen Rider Hibiki novel, "The compass to tomorrow". I made this one a Summer-Type.

Original ideas ©Toei
designs ©me