A history of the British sessile-eyed Crustacea . three segments coalesced together. The terminal joint islarge, and marked at its base with a rather deep transversechannel. The legs are of nearly equal size; they areterminated by a bifid finger. The tail-plates (pleopoda)consist of six pairs, five folding obliquely upon eachother, and received in a deep excavation on the undersideof the tail, of which the two last are furnished with bran- * Savigny (Egypte Crust., pi. 12, f. 1 i,) represents the middle joint asdivided into two, probably arising from the appendage having been twistedin this pa
A history of the British sessile-eyed Crustacea . three segments coalesced together. The terminal joint islarge, and marked at its base with a rather deep transversechannel. The legs are of nearly equal size; they areterminated by a bifid finger. The tail-plates (pleopoda)consist of six pairs, five folding obliquely upon eachother, and received in a deep excavation on the undersideof the tail, of which the two last are furnished with bran- * Savigny (Egypte Crust., pi. 12, f. 1 i,) represents the middle joint asdivided into two, probably arising from the appendage having been twistedin this part in the specimen dissected by him. D D 2 404 SPHiEROMlDiE. chial organs ; the last or sixth pair are crustaceous, andterminated by two nearly equal oval plates, of whichthe outer is movable, and folds under the inner, which issoldered to the basal support. They are vegetable feeders, and some species haverecently been described by Dr. Fritz Muller, from theBrazils and Madras, which were found living as extensiveperforators in submarine STUDLAND BAY. ISO POD A. NORMALIA. SPHJiROMA SERRATUM. 405 SPHJiROMlDJi.
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Keywords: ., bookauthor, bookcentury1800, bookdecade1860, booksubjectcrustacea
