. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . Pentacta frondosa, the sea-cucninlnT. over the greater part of theglobe. The tough muscularbody is said to be edible, tastingsomewhat like lobster, or tre-pang (Holothuria edulis), whichis found on coral reefs in East-ern seas and is much valued asfood by the Chinese. The internal organsof P. frondosa are highly colored, makingits anatomy easy to trace. The muscularsystem is plainly defined. GENUS Lophothuria (Verrill), Psolus fabricii(Diiben), Cuvieria squamata (D.
. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . Pentacta frondosa, the sea-cucninlnT. over the greater part of theglobe. The tough muscularbody is said to be edible, tastingsomewhat like lobster, or tre-pang (Holothuria edulis), whichis found on coral reefs in East-ern seas and is much valued asfood by the Chinese. The internal organsof P. frondosa are highly colored, makingits anatomy easy to trace. The muscularsystem is plainly defined. GENUS Lophothuria (Verrill), Psolus fabricii(Diiben), Cuvieria squamata (D. and K.:Agassiz). The body in this speciesis covered with rounded overlapping scalesand numerous granulations, and when itis retracted is about two and a half to threeinches long and about one inch Lojihothuria fabricii, showing under sur-face with three rows of ambulacra. SEA-CUCUMBERS 233 rows of tube-feet lie near together, on a flat under surface, and form akind of sole on which the animal creeps. The oral end of the body is alittle raised and bears ten tentacles ; these tentacles are profusely andfinely branched, and when expanded are about as long as the aboral end is obtuse and a little raised. Around the oral and analopenings the scales are grouped, forming circles in those regions. Thisholothurian is bright red in color, and when expanded is a beautifulobject, perhaps the most attractive in appearance of any in the retracted it has the aspect of an ascidian, and for a time wassupposed to belong to that group. It is found on the New England coaston the under side of large shelving rocks. ORDER APOBA GENUS Synapta S. tennis. This curious animal is long and slender, and so transpa-rent that its internal organs are clearly visible. Around the mouth are a
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmarinea, bookyear1901
