. The Bashford Dean memorial volume :. Fishes; Sharks; Fishes, Fossil. The Embryology of Heterodontus japonicus 667. Text-figure 7- Dorsal view of the 795'mm. male specimen of Heterodontus phillipi shown, in lateral view, in Text-figure 6. The external openings of the spiracles are shown in the dark band crossing the head. After Maclay and Macleay, 1879, Fig. 3, pi. 22. flexed condition. The color pattern is not shown. The external spiracular opening is unusually large. It does not seem necessary to reproduce this figure. In the order of historical sequence, the next authentic drawings of Hete
. The Bashford Dean memorial volume :. Fishes; Sharks; Fishes, Fossil. The Embryology of Heterodontus japonicus 667. Text-figure 7- Dorsal view of the 795'mm. male specimen of Heterodontus phillipi shown, in lateral view, in Text-figure 6. The external openings of the spiracles are shown in the dark band crossing the head. After Maclay and Macleay, 1879, Fig. 3, pi. 22. flexed condition. The color pattern is not shown. The external spiracular opening is unusually large. It does not seem necessary to reproduce this figure. In the order of historical sequence, the next authentic drawings of Heterodontus phillipi that have come to my attention are those of Maclay and Macleay (1879). Text- figure 6 is a copy of their drawing of an adult male specimen in lateral view. This is probably the best drawing of an adult male Port Jackson shark ever published. One should notice particularly the large head and the color pattern of the head and body. The authors state that the skin is roughly shagreened, and that the color in the fresh specimen is reddish'brown above and yellow with a pinkish tinge beneath. The color pattern (made up of brownish'black stripes) becomes indistinct within a few hours after death and in this drawing of a preserved specimen the color pattern is represented as seen in perfectly fresh specimens. In addition, the authors portray a dorsal view of the same adult specimen (my Text-figure 7). One is impressed by the breadth of the head including the branchial region. The color pattern of the dorsal surface is decidedly more complex than that of the lateral surface. The authors state that the average si2,e of adult specimens of the Port Jackson Shark of both sexes is a little over three feet and that they seldom, if ever, attain a length of four feet. The external reproductive organs of an adult male are represented by Maclay and Macleay (1879) in their Figs. 24 and 25, pi. 24. Each myoxpterygium is armed with a sharp spine. Of particular interest are Maclay a
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