Fukushima manu no.50 Sagamophthalmus obliquens Gill, ♀ July 19/10 Okahu This specimen had been killed two days before I examined it, but it was in good condition. Color In general the color description of no 18 applies to this specimen with the following points: The anterior prolongation of the light gray area from the eyes forward is wider and lighter than in no 18. The light face lines meet in the middle line then run front but become a little darker just at the middle line. The back below the V is all dark gray - the light gray areas is all above the V The dark gray line which borders the white ventral, from the gray side areas is a little wider behind the pectorals than in no 18. Also 140 mill front the post. insertion of the fin there is a sharp angular projection of the gray line downward into the white of the ventral parts. This was not found on any of the other specimens. The light gray area on the sides & behind the dorsal covers the entire sides all but the back. In no 18 it only covered the lower half of the pectorals. Just anterior to the fin insertion the narrow dorsal