. Elements of zoology, to accompany the field and laboratory study of animals. Zoology. Fig. 276. — Ciona, a simple Tunicate, o, mouth; at, open- ing of atrium, or exhalent opening; si, stolon. After Leuckart and Nitsche's dia- gram. Fig. 277. — Two small colonies of compound Tunicates (Botryllus). The "zooids" are grouped about a center, have a common cloacal opening id), but separate mouths (or). After Milne-Edwards. gated bodj^ is divisible into three parts: the proboscis at the an- terior end ; the collar ; and the trunk. In the trunk an anterior region containing gill-slits {hr,
. Elements of zoology, to accompany the field and laboratory study of animals. Zoology. Fig. 276. — Ciona, a simple Tunicate, o, mouth; at, open- ing of atrium, or exhalent opening; si, stolon. After Leuckart and Nitsche's dia- gram. Fig. 277. — Two small colonies of compound Tunicates (Botryllus). The "zooids" are grouped about a center, have a common cloacal opening id), but separate mouths (or). After Milne-Edwards. gated bodj^ is divisible into three parts: the proboscis at the an- terior end ; the collar ; and the trunk. In the trunk an anterior region containing gill-slits {hr, Fig. 279), and a posterior region that is without gills can be chstinguished. The mouth lies between the proboscis and collar and leads into a nearly. 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 Davenport, Charles Benedict, 1866-1944; Davenport, Gertrude Anna Crotty, 1866- joint author. New York, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1911
