The uterus contained at least 6 embryos (one measured ~ 42.5 cm total length) and numerous nutritive eggcases.
Relevant webpages, references, publications: Lamnid embryo development; Lohberger (1910, salmon shark embryos); Francis (1996, on white shark pdf), Uchida et al. (1996, on white shark); Francis and Stevens (2000 on porbeagle pdf); Richard Lord (~2000ff on porbeagle from Channel Islands GB); Mollet et al. (2002, on shortfin mako pdf); Mollet et al. (2003, on Sanzo embryo pdf);
The first photgraph shows a male white shark embryo with large yolk stomach, flaring gill slits, no external gill filaments, no pigmentation except for eyes, straight caudal fin. Using my own ruler on the screen against cm ruler shown on photograph, I obtained the following major morphometrics: total length with tail in natural position (TL) ~ 42.5 cm; total length with tail in stretched position TOT = (PCL + CDM) ~ 43.5 cm; forklength (FL) ~ 36.5 cm, precaudal length (PCL) ~ 32.9 cm, upper caudal fin length (CDM) = 10.6 cm, length to first dorsal fin (PD1) ~ 15.4 cm.
Using measrurements for height and width of the yolk stomach (no depth available from photograph), I estimated the volume to be about 1350-1400 cc and the mass about 1.35 - 1.40 kg (assuming 1.0 g/cc for density). My estimate for total mass of embryo is ~ 2 kg. Correct mass was 1.6-1.7 kg according to Hua Hsun Hsu.
The second photograph: First, the visable pelvic fin of the same embryo as in in the first photograph shows a clasper indicating that it was a male. Second, for third photograph I needed an estimate of mouth width (MOW) which can be estimated from the inch tape shown in the picture. MOW ~ 5.1 cm. Flaring branchial region better visiable in this photograph.
The third photograph. MOW from above ~ 5.1 cm. Therefore using my ruler on this photograph gives ~ 0.8 mm for the height of the two small fangs (one on each side of lower jaw). There are indications of developing fangs on upper jaw (one little bump on each side, could be similar in size as those in lower jaw if strongly curved backwards).
