Orbital Frame Selkis
Orbital Frame Selkis was Nohman's frame before acquiring Anubis. It has the ability to transform into a different formation to better suit battle conditions. It is also armed with homing missiles. But even with these abilities, Selkis, like many other frames, is no match for Anubis.
In Zone of the Enders, Selkis is not shown, only mentioned -- Nohman offers it to Viola, to which she declined, sticking with Neith.
In Dolores,i, Rebecca Hunter uses Orbital Frame Selkis in addition to Alterneith.