. A text-book of invertebrate morphology. Invertebrates. 400 INVERTEBRATE MORPHOLOGY. most part of the stalk are the two scuta (sc), while above these are the terga {te), also paired, the opening into thte in- terior lying between the terga and the scuta of opposite sides. In Scalpellum between the two scuta a sixth, unpaired, piece, the rostrum, is inserted, and in the same genus between the scuta, terga, and carina a,nd the summit of the stalk small accessory pieces occur; and if one imagines a disappearance. Fig. 181.—Lepas fascicular is. A, exterior; B, structure. ag = antennary gland. Car
. A text-book of invertebrate morphology. Invertebrates. 400 INVERTEBRATE MORPHOLOGY. most part of the stalk are the two scuta (sc), while above these are the terga {te), also paired, the opening into thte in- terior lying between the terga and the scuta of opposite sides. In Scalpellum between the two scuta a sixth, unpaired, piece, the rostrum, is inserted, and in the same genus between the scuta, terga, and carina a,nd the summit of the stalk small accessory pieces occur; and if one imagines a disappearance. Fig. 181.—Lepas fascicular is. A, exterior; B, structure. ag = antennary gland. Car = carina. Cir = cirrus M = shell-muscle. Od = oviduct. Ov = ovary. pe = peduncle. 8c = scutum. t = testis. Te = tergum, Vd = vas deferens. of the stalk of such a form, an enlargement of these accessory pieces, usually six in number, and their articulation to form a wall-like circle around the body of the animal, the scuta and terga closing it in and forming as it were a roof, an idea of the arrangement of the shell of Balanus, the acorn-barnacle, will be obtained. No special respiratory organs exist, the entire surface of the body probably performing this function, nor does a heart seem to occur in any member of the group. The nervous. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McMurrich, J. Playfair (James Playfair), 1859-1939. New York, H. Holt and Company
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1894
