And now we saw that it was full of crabs; though for the most part so very minute as to escape the casual glance; yet they were not all small, for in a while I discovered a swaying among the weed, a little way in from the edge, and immediately I saw the mandible of a very great crab stir amid the weed.

There is no appearance of a movable mandible in the lanceolate appendages, but which, nevertheless, most probably represent avicularia.