. The Bashford Dean memorial volume :. Fishes; Sharks; Fishes, Fossil. The Embryology of Heterodontus japonicus JlS A "nest" was discovered October 4, 1905, in the channel off the fishing town of Miura- Misaki behind the island Jogashima, at a depth of 28 feet. It contained 15 eggs in various stages of development. The bottom of the nest was of seaweed, its sides were formed by irregular rock masses, some of large size, and the nest was largely concealed by several flat stones which the divers removed only with difficulty. (It appeared fortunately that this particular spot was rich i
. The Bashford Dean memorial volume :. Fishes; Sharks; Fishes, Fossil. The Embryology of Heterodontus japonicus JlS A "nest" was discovered October 4, 1905, in the channel off the fishing town of Miura- Misaki behind the island Jogashima, at a depth of 28 feet. It contained 15 eggs in various stages of development. The bottom of the nest was of seaweed, its sides were formed by irregular rock masses, some of large size, and the nest was largely concealed by several flat stones which the divers removed only with difficulty. (It appeared fortunately that this particular spot was rich in Haliotis and was being inspected with great care). The eggs were shown to be arranged in a space about six feet long, the greater number of them lying together closely embedded in the seaweed, "four out of five" of them being wedged in, with the Httle end of the capsule downward. I visited the spot and it may be worth while to picture a restoration of this nest (Text-figure 42) as near as I could make it out without diving, relying upon the fisherman's reconstruction. From the preceding account, it appears that there is similarity in the egg capsules and in the spawning habits of Heterodontus phillipi and H. japonicus. In both species, the capsules are surrounded by a pair of broad spiral valvC'like appendages which end. Text-figure 42. Reconstruction of a typical "nest" oi Heterodontus japonicus found at the bottom of the Sagami Sea at a depth of 28 feet. The nest was surrounded by large rock fragments. Some encapsuled eggs may be seen entangled among sea weeds at the bottom of the nest, and other eggs are wedged into crevices in the rocks. From a drawing by Bashford Dean, whose initials appear in the lower right-hand 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, Bashf
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Keywords: ., book, bookcentury1900, booksubjectfishes, booksubjectfishesfossil
