. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . y beautiful objects which inhabit the subsurfaceof the sand. The curious crab Hippo, will disappear so quicklyinto the sand that one is hardly sure he has really seen it. Thevast number of worms will surprise any one who searches forthem by their variety, their beautiful color, and their interestingshapes. Here again a glass is requisite to appreciate the delicacyand beauty of their locomotive organs, their branchiae, and so most common of the gasteropod mollusks on san
. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . y beautiful objects which inhabit the subsurfaceof the sand. The curious crab Hippo, will disappear so quicklyinto the sand that one is hardly sure he has really seen it. Thevast number of worms will surprise any one who searches forthem by their variety, their beautiful color, and their interestingshapes. Here again a glass is requisite to appreciate the delicacyand beauty of their locomotive organs, their branchiae, and so most common of the gasteropod mollusks on sandy shoresare Nassa obsoleta, Nassa trivittata, and Polynices (Lunatid) last are detected by the little mounds of sand which theypush before them as they plow their way just below the more southern beaches, Fulgur, Stromfais, and Pyrula. are thecommon varieties. OlitcHa, Olim, and Dottajc, also inhabitants ofsandy beaches, will quickly disappear when uncovered by thewaves, being rapid burrowers. Most of the many dead shells onthe beach will be found to be pierced with a round hole, which is i. PLATE I. Egg-o;i|>sulcs of Purpura l:i]>illns. Egg-case of Iolyniccs lieros. Egg-capsules of Buccinuin undatuni. Egg-case of the skate. Fulirur caualiculata I whelk) and egg-ease^. COLLECTING 11 drilled by the file-like tongue, or lingual ribbon, of Poli/nices,lrinx, or Xasxa, which thus reach the animal within andsuck out its sul(stance. Another similar species is Polynices(Neverita] (liijrticatu, which extends to the Gulf of Mexico, whileP. heros is not commonly found below Hatteras. Crustaceansare abundant on the sandy beach over its whole breadth. Someof the sand-crabs live above tide-mark. Among these is thefleet-footed Ocypoda, which is interesting to watch. Often theygo in numbers to the waters edge and throw up mounds, behindwhich they crouch like cats, watching for whatever prey the tidemay bring up. When unable to outrun a pursuer they rush intothe sur
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmarinea, bookyear1901
