. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . PLATE LXIV. (alupjia ]>ourtalesii. C:ilap|i:i (lamina, claws open, showing turiii of polyphemus. SEA-SPIDEE 297 ovigerous legs are run through sac-like pockets and bent underthe body, and thus the eggs are carried until hatched. GENUS P/i oxichilidium P. This species is found on the New England coastcreeping: over hydroids and ascidians. It is purple, gray, or brown incolor. Its young take shelter in the cavities of hydroids


. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . PLATE LXIV. (alupjia ]>ourtalesii. C:ilap|i:i (lamina, claws open, showing turiii of polyphemus. SEA-SPIDEE 297 ovigerous legs are run through sac-like pockets and bent underthe body, and thus the eggs are carried until hatched. GENUS P/i oxichilidium P. This species is found on the New England coastcreeping: over hydroids and ascidians. It is purple, gray, or brown incolor. Its young take shelter in the cavities of hydroids, forming Phoxichilidium maxillare, enlarged. VII MOLLUSCA TABLE SHOWING THE CLASSIFICATION OF THE MOLLUSKSDESCRIBED IN THIS CHAPTEE Phylum MOLLUSCA ClassesAMPHINEURA (Bilaterally symmetricalmollusks, having shellcomposed of eight plates,or devoid of shell. In-cluding chitons and theirallies) GASTEROPODA ( Unsymmetrical univalvemollusks, usually spiral-ly coiled. Periwinkles,ivhelks, snails, etc.) SCAPHOPODA (Mollusks without head,eyes, or heart, with tri-lobed foot and tubularshell open at both tooth-shells) Orders POLYPLACOPHORA (Shell composed of eight plates) APLACOPHORA (Devoid of shell) OPISTHOBRANCHIATA (Branchice, when present, behindthe heart) Suborders PROSOBRANCHIATA (Branchice situated in front of theheart) PULMONATA (Air-breathing mollusks) TECTISRANCHIATA (Branchice more or lesscovered by mantle / shelldelicate and often rudi-mentary ) NUDIBRANCHIATA (Devoid of shell and mantle, and without true branchiae) DIATOCARDIAC Usually two auricles, two branchiae, and two neph- ri


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmarinea, bookyear1901