. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . ve on the second joint. Bythis singular organ they hold theirprey securely. The abdominalfeet carry the gills. The antennalscales are oblong and fringed withhair. The antennules terminatein three flagella. The caudal ap-pendages and telson are long,strong, and armed with animal lives in burrows intike mud below low-water mark, forming large, irregular holes, butis frequently washed ashore. Incolor it is pale yellowish-green,each segment being bordered withdarker gr
. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . ve on the second joint. Bythis singular organ they hold theirprey securely. The abdominalfeet carry the gills. The antennalscales are oblong and fringed withhair. The antennules terminatein three flagella. The caudal ap-pendages and telson are long,strong, and armed with animal lives in burrows intike mud below low-water mark, forming large, irregular holes, butis frequently washed ashore. Incolor it is pale yellowish-green,each segment being bordered withdarker green and edged withyellow. It is found from CapeCod to Florida. ORDER CUMACEA GENUS Diastylis D. qnadrlspinosus. Amongthe minute Crustacea which swimon the surface of the water, thisspecies, with other small forms,may be captured by using a muslinnet. It is a quarter of an inchor less in length. It is easilydistinguished by its large carapace,the posteiior portion of which ismarked off in transverse ridges, the anterior end running into a sharp-pointed rostrum. It has a long, slender abdomen, the sections of which. Squilla empusa, the mantis-shrimp. AMPHIPODS are distinctly marked, and it terminates in long, forked spines, whichare longer than the telson. It is found from New Jersey northward. ORDER ARTHROSTRACASUBORDER AMPHIPODA The Ampli iprxla have a laterally compressed body,with gills on thethoracic feet and an elongated abdomen. The segments of thethorax are not united, nor covered by a carapace, but the wholebody is covered with a segmented, polished, flexible cuticle. Thethree anterior legs of the abdomen are for swimming-feet, andthe posterior ones are adapted for springing. The antennae arelong and hairy. The amphipods comprise the beach-fleas andmany other small crustaceans which abound between tide-markson all beaches. Besides serving in no small measure as food forfishes, they are scavengers of the beach, and consume large qunn-(ities of waste matter. They are somet
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmarinea, bookyear1901
