. The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom, quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture . aced ina line, like the teeth of a comb, and each in their turnprovided with a double row of movable these branchiae serve the purpose of respiratoryorgans, it would appear, says Audouin, that it is notthe only use to which they are applied; for Bosc h
. The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom, quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture . aced ina line, like the teeth of a comb, and each in their turnprovided with a double row of movable these branchiae serve the purpose of respiratoryorgans, it would appear, says Audouin, that it is notthe only use to which they are applied; for Bosc hosobserved that these animals live on small worms, whichthey attract to their mouths by the whirlpool caused bythe rapid motion of these organs in the water.—Scr-piiki cortortiqilicciia (fig. 205) will illustrate the family. F.\MiLy IL—TEREBELLID.^:. In general form the animals of this family resemblevery much the preceding, being vermiform and cylin- drical, without distinct head, and divided into thoracicand abdominal portions. The feet on the thoracicportion are similar to those of Serpulido, but on theabdominal portion the dorsal bristles, or both dorsaland ventral, are frequently wanting. The branchiiBare pectinated or much branched, rarely filiform, andplaced laterally. These animals inhabit membranous Fig. Serpula cortortuplicatft. tubes, which are coated with particles of sand, gravel,or broken shells agglutinated together, and open atboth extremities. III.—SABELLARIID^. In this family the body of the animal is composedof few segments, and is divided into two distinct por-tions. The anterior portion has the segments providedwith setigerous and uncinated feet; the posterior isnarrow, without segments, and witliout feet, more likea caudal appendage. The first segment is large andtruncate, disc-shaped, and having an operculum com-posed of several rows of flatfish bristles. The mouthis placed in the centre of this disc, and encircled witha somewhat exten
Size: 1231px × 2030px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlibraryofcongressformerownerdsi, bookpublisherlondon
