I could scarcely credit the evidence of my sight when I saw the 'tumler' minus its crustaceous occupant. The first thought that occurred to me was as to where the crab could be found. Under chairs, sofa, and fender, behind book-case, cabinet, and piano, in every crevice, hole, and corner, for at least an hour did I hunt without success. Eventually the hiding-place of the fugitive was discovered in the following singular manner: As I sat at my desk, I was startled by a mysterious noise which apparently proceeded from the interior of my 'Broadwood,' which, by-the-by, I verily believe knows something about the early editions of 'The battle of Prague,' The strings of this venerable instrument descend into ill-disguised cupboards, so that at the lower part there are two doors, or, in scientific language, 'valves.' On opening one of these, what should I see but the poor crab, who, at my approach, 'did' a kind of scamper polka over the strings. This performance I took the liberty of cutting short with all possible speed. On dragging away the performer, I found that his appearance was by no means improved since I saw him last. Instead of being ornamented with gracefully-bending polypes, he was coated, body and legs, with dust and cobwebs. I determined to try the effect of a bath, and presently had the satisfaction of seeing him regain his usual comely appearance. The next step was to replace him in his old abode; and having done so, I felt anxious to know how the creature had managed to scale his prison walls. The _modus operandi_ was speedily made apparent; yet I feel certain that, unless one had watched as I did, the struggles of this little fellow, the determination and perseverance he exhibited would be incredible. After examining his movements for an hour, I found, by dint of standing on the points of his toes, poised on a segment of weed, that he managed to touch the brim of the glass. Having got thus far, he next gradually drew himself up, and sat upon the edge of the vessel. In this position he would rest as seemingly content as a bird on a bush, or a schoolboy on a gate. My curiosity satisfied, the _C. mænas_ was again placed in the vase, and every means of escape removed. Here let me mention that I still had a Fiddler-Crab in my large tank, who had formerly lived in companionship with the shore-crab above mentioned. With 'the fiddler' I had no fault to find; he was always modest and gentle, and gave no offence whatever to my Blennies. He never attempted to embrace them, nor to usurp their lawful place at the table, nor even to appropriate their meals. On the contrary, he always crept under a stone, and closely watched the process of eating until the coast was clear, when he would scuttle out, and feed, Lazarus-like, upon any crumbs that might be scattered around.