. A manual of zoology. Zoology. I'lc. 3' o. Fio. 3or. Fig. 300.—Bdhiiiiis Iniiiicri* aeoni barnacle U rom Lan;.j, aflcr llarwin"). Formcil of rostrum, lateralia, and , the opcreuhnn of scuta (vl and lerua I'V l'" 301.—Analoiuy of Lrftos (aflor Clausl. ,i. addmlor luusele: i', carina; rr, cirri l^fccO; i,^, conicnl gland; /, li\cr; o, o'. Lnar\-an<.l madnct; l\ penis; /, testis; [i\ tcrgum; :', ^"as deferens. the rosirii))!. In the Balanidx the rostrum and carina ,are much stronger, while between them other ]iaired pieces, the iatcralia, are inlerealated, Laler- ali
. A manual of zoology. Zoology. I'lc. 3' o. Fio. 3or. Fig. 300.—Bdhiiiiis Iniiiicri* aeoni barnacle U rom Lan;.j, aflcr llarwin"). Formcil of rostrum, lateralia, and , the opcreuhnn of scuta (vl and lerua I'V l'" 301.—Analoiuy of Lrftos (aflor Clausl. ,i. addmlor luusele: i', carina; rr, cirri l^fccO; i,^, conicnl gland; /, li\cr; o, o'. Lnar\-an<.l madnct; l\ penis; /, testis; [i\ tcrgum; :', ^"as deferens. the rosirii))!. In the Balanidx the rostrum and carina ,are much stronger, while between them other ]iaired pieces, the iatcralia, are inlerealated, Laler- alia, rostrum, and carina arise from a base (nsLial]\- calc;ireous) and form a cajisnle, closed above by a double val\e formed of ihc ]\iired scnla and lerna, between which, when open, the animal can be seen (fig. 31)0). The body in both lepads and halanids has essenlially the same struc- ture. It is \enlrally, so that mouth and vent arc near each otltcr, and liears six pairs of feathered feet, or cirri, \\hich, when extended, become widely separated lornr a most eflicicnt nteaiis of straining small organisms Irom the water ;uid con\'eving thent to the mouth. These feet are hiramous, with their branches ringed and thickly haired. Behiml them is a rudimentary abdomen and an elongate penis; while the mouth is surrounded liv a jiair of mandibles and two pairs of maxilke. In internal structure the most noticeable feature is that the aitimals. 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
