Image from page 247 of “The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks” (1901) – more Marine Life goodness curated by www.SardineRunPE.co.za
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Title: The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks
Year: 1901 (1900s)
Authors: Arnold, Augusta Foote, 1844-1903
Subjects: Marine animals Marine plants Seashore animals
Publisher: New York : The Century Co.
Contributing Library: New York Public Library
Digitizing Sponsor: MSN
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Text Appearing Before Image:
h a horny jaw. They are active, fierce beasts of prey. FAMILY SYLLIDJE This family is the highest in organization of the worms. Theyare small, the majority being less than an inch in length, andmany are minute. They are often highly colored. Many havelong cirri on the feet; some have alternation of general ion.They are common everywhere along tlie coast, but are not seenunless searched for. Sponges sometimes are alive with them.They are interesting subjects for microscopic study. FAMILY APHRODITID.S: The scale-bearing annelids. This family of worms is distin-guished from all others by having scales on iheback. The .scales,called ili/tta, are flattened dorsal cirri carried on the upper para- 174 MARINE INVERTEBRATES podia, and generally on alternate segments and in a double rowdown the back. The elytra are the breathing-organs, and, althoughof a horny texture, are richly supplied with nerves. The wormsare short and have a large protrusible pharynx armed with adouble pair of horny jaws.
Text Appearing After Image:
Polynoe sqwimata. GENUS Polynoe The species of Polynoe are determined by thenumber of scales they bear. They have a flattenedshort body with nearly parallel sides. The bristlesare of a bright golden color. The proboscis is largeand has four powerful jaws at the end and a circle ofpapillae at the top. They are sluggish in movementand are found under stones and in the crevices of rocks.When disturbed they roll themselves into a ball. P. squamata. Twelve pairs of rough scales; colorsandy-brown, speckled; one inch to one and a halfinches long; the broad, oval scales overlap and entirelycover the body and head. Some Polynoe when disturbedthrow off every scale. Very common north of Cape Cod. P. snblevis. Twelve pairs of smooth scales; usuallygrayish-brown in color, speckled with dark spots; iri-descent; last pair of scales more slender than the others;length one and a quarter inches, breadth about onequarter of an inch. GENUS Harmothoe H. imbricata. Sixteen pairs of smooth scales; variable
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