. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . tervals. The stems are black and beaded,being constricted at intervals. The zooids have two rows of tentacles,the upper ones on a small proboscis. From the lower part of the pro-boscis deep, bell-shaped bodies, which eventually become swimming-bells, are developed. The species is found on rocks and eel-grass alongthe whole eastern coast. .P. gibbosa. A species similar to P. tiarella, found on the coast ofFlorida. GENUS Boittjainvillea B. sitperciliaris. This hydroid is found i
. The sea-beach at ebb-tide : a guide to the study of the seaweeds and the lower animal life found between tidemarks . tervals. The stems are black and beaded,being constricted at intervals. The zooids have two rows of tentacles,the upper ones on a small proboscis. From the lower part of the pro-boscis deep, bell-shaped bodies, which eventually become swimming-bells, are developed. The species is found on rocks and eel-grass alongthe whole eastern coast. .P. gibbosa. A species similar to P. tiarella, found on the coast ofFlorida. GENUS Boittjainvillea B. sitperciliaris. This hydroid is found in tide-pools on the NewEngland coast, growing in clusters, about two inches high, attached torocks or to mussel-shells. The stem is very slender, and branches. It isred in color. The medusa;! which it liberates are found in great numbersin the spring. The tiny swimming-bells are nearly globular. The tenta-cles are long, are arranged in four clusters on the margin, and extend inevery direction. The manubrium is yellow and short, and the mouth isconcealed by four clusters of short tentacles. On these oral tentacles. Pennaria tiarella; a branch, naturalsize.
Size: 1142px × 2189px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectmarinea, bookyear1901
