. mm Text-fig. 15. Podoclavella cylindrica (Quoy & Gaimard) (St. 1686): Zooid. Zoom (Text-fig. 15). Large zooids reach a length of 11 mm. but many of the zooids in the colony are much shorter. The body is widest anterior to the middle and tapers towards the base, where it abruptly narrows to join the stalk. Thorax. The oral siphon () does not occupy the extreme anterior end of the thorax, being instead displaced slightly down the ventral border. This siphon is also curious in being sharply bent in a ventral direction. The atrial siphon () is terminal. Both siphons have numerous
. mm Text-fig. 15. Podoclavella cylindrica (Quoy & Gaimard) (St. 1686): Zooid. Zoom (Text-fig. 15). Large zooids reach a length of 11 mm. but many of the zooids in the colony are much shorter. The body is widest anterior to the middle and tapers towards the base, where it abruptly narrows to join the stalk. Thorax. The oral siphon () does not occupy the extreme anterior end of the thorax, being instead displaced slightly down the ventral border. This siphon is also curious in being sharply bent in a ventral direction. The atrial siphon () is terminal. Both siphons have numerous circular muscles. Fifteen to twenty slender muscles pass obliquely across the thorax and abdomen.
Size: 1589px × 3146px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
