. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . sh. Itdiffers from the common lobsterHomuruft of the Atlantic coast inhaving no large claws, the firstpair of feet being simple like flu-rest, also in having antenna? whichare enormously long and veiylarge at the base. The carapaceis beset with spines, and the lateralmargins of the abdominal segments end in spines. This species livesamong the rocks on the southern California coast. JP. (tryus <»• (tiHiricamis resembles P. intcrruptus, and is found onthe coast of Florida. GE
. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . sh. Itdiffers from the common lobsterHomuruft of the Atlantic coast inhaving no large claws, the firstpair of feet being simple like flu-rest, also in having antenna? whichare enormously long and veiylarge at the base. The carapaceis beset with spines, and the lateralmargins of the abdominal segments end in spines. This species livesamong the rocks on the southern California coast. JP. (tryus <»• (tiHiricamis resembles P. intcrruptus, and is found onthe coast of Florida. GENUS Scf/lftrrtts ticy11(i)-ns has a broad, almost square carapace, which is unevenand coarsely granulated; the anterior corners are sharp, theposterior ones rounded. The antenna are curiously modifiedinto broad, flat, double plates reaching (|iiite across the straightanterior end of the carapace. The under scales of these modifiedantenna are rounded and leaf-like, the upper ones arc margins of the abdominal plates on the ventral side aretoothed, and on the upper side the first three sections have .. ims in! 264 MARINE INVERTEBRATES knobs, the third one being the most prominent, and forming theposterior extremity when the abdomen is folded in. The walking-feet are all simple and end in points; the first pair are the longest,and the following ones gradually diminish in size. The ventralsurface is rough and spiny. The abdomen is of about the samelength as the carapace. These animals are found off the Floridacoast and are caught in the fish-traps. They are very peculiar development of the antennas makes them worthyof examination when opportunity offers. ANOMALOUS FORMS: ANOMURA The anomalous forms which are intermediate between the sub-orders Macrura and Brachyiira were, until recently, placed in asuborder, Anomura. The members of this group differ from oneanother, and some of them resemble in external features mem-bers of the other divisions of the subo
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmarinea, bookyear1901
