FIG. 24. Above, underwater p~rotograph taken on the edge of the continental shelf
west of L’shant (Station 4263.8 18” LO‘ .I;. 0 7 ’ 31’ W, 175 m). The area covered
by the picture is I t x 3 m. The pirturr .show~s~ a bottom of mud and Rsnd with
light ripple marking. Among t hc organisins ~~rcsent. are cupshaped and branching
qonges. a worm tube, a few optiiuroid.*. aid what uppear to be hydroid8 rooted
in the deposit. (Copyright Sat ioiial Institute of Oroanography.)
hetl of Ophiothrix frugiIie, with a single
Echirtus rwrtlrtifus.
From the English Channel near
Plymoiith (el>. I7ewrs. 1!l,i2).
Rt.low. uridi>rwster photogrtqth of
Width of picturo .iO ern.
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