. The Bashford Dean memorial volume : archaic fishes. Fishes; Sharks; Fishes, Fossil. z Text-figure 2. This drawing of a portion of an egg of Bdellostoma stout, illustrates m greater detail the structure of the anchor filaments and the opercular groove shown in text-figure 1 After Dean, 1S99. Text-figure 3 Median longitudinal section through the animal pole of an egg of Bdellostoma The opercular cap, a part of the egg-shell, is limited by the opercular groove. At the centre of the group of filaments is the minute micropylar canal having above it a plug of mucus and below It the germina
. The Bashford Dean memorial volume : archaic fishes. Fishes; Sharks; Fishes, Fossil. z Text-figure 2. This drawing of a portion of an egg of Bdellostoma stout, illustrates m greater detail the structure of the anchor filaments and the opercular groove shown in text-figure 1 After Dean, 1S99. Text-figure 3 Median longitudinal section through the animal pole of an egg of Bdellostoma The opercular cap, a part of the egg-shell, is limited by the opercular groove. At the centre of the group of filaments is the minute micropylar canal having above it a plug of mucus and below It the germinal hillock. This latter is continuous with the protoplasmic mantle envelop- ing the yolk which is arranged in concentric layers. ^ ' After Dean, 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 Dean, Bashford, 1867-1928; Gudger, E. W. (Eugene Willis), 1866-1956. New York : Published by order of the trustees
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Keywords: ., book, bookcentury1900, booksubjectfishes, booksubjectfishesfossil
