krylovata is relatively small and subovate
in shape (length 31 to 59 mm, H / L ratio 0.70 to 0.90) when compared with the 13 specimens from dive 4129.
In transverse sections, corallites commonly subovate
or subelliptical, generally 1.29-2.16 mm long and 1.02-1.85 mm wide.
. Dorsal anchor with superficial root more developed than deep root, curved shaft and point.
Cells are subovate
, egg-shaped, sometimes almost triangular, with a broadly rounded epitheca and narrowly tapered hypotheca terminating with a strong triangular spine, somewhat deflected ventrally.
Testis intercecal, postovarian, subovate
106 (87-123; n = 12) long, 46 (31-58; n = 12) wide; vas deferens looping left intestinal caecum; seminal vesicle elongate.
Body elongate, about twice as long as broad; head short, densely micropunctulate; frons with weak inpunctate median carina; distance between eyes about 0.60 to 0.80 as wide as eye width; eye cleft 0.62 to 0.66 its length by ocular sinus; posterior margin of eye protruding from adjacent surfaces; postocular lobe rounded; distance from base of antennae to apex of labrum 0.41 to 0.48 as long as distance from upper limits of eyes to apex of labrum; antennal segment 1 filiform, 2-4 moniliform to filiform, 5 subserrate, 6 to 10 serrate, 11th subovate
; antenna extending to humerus.
The tegmina are subovate
laterally, with the posterior margin marginate, and dark with whitish veins.
Flowers sessile, densely polystichously arranged, suberect to nearly erect, 50-55 mm long, odorless; sepals suboblong to subovate
, asymmetrical, apex obtuse and distinctly mucronate, ecarinate, free or nearly so, pale yellowish-castaneous, densely and coarsely white-lepidote, 25-28 mm long, including the 5-6 mm long castaneous mucron, ca.
in outline, its anteromedial corner produced into small and completely nonarticulating palp (Fig.
(disc-like) or 6 crescentric (hatchet-like) in side view; valves compressed in dorsal view 6.