. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. REPRODUCTION OF VIVIPAROUS PERCHES 245 I found the largest embryo of £ jacksoniio be 61 mm ( inches) SL and the smallest free-swimming newborn collected to be 54 mm ( inches) SL. The largest embryo of H. car//measured 53 mm ( inches) SL and the smallest free-swimming newborn collected was 55 mm ( inches) SL. In some embiotocids, older females spawn earlier in the season than younger females (Eigenmann 1894; Hubbs 1921; Cad
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. REPRODUCTION OF VIVIPAROUS PERCHES 245 I found the largest embryo of £ jacksoniio be 61 mm ( inches) SL and the smallest free-swimming newborn collected to be 54 mm ( inches) SL. The largest embryo of H. car//measured 53 mm ( inches) SL and the smallest free-swimming newborn collected was 55 mm ( inches) SL. In some embiotocids, older females spawn earlier in the season than younger females (Eigenmann 1894; Hubbs 1921; Cadisle etal. 1960; Triplett 1960; Wiebe 1968). A distribution comparing parent length to embryo development (em- bryos' standard length) was prepared to see whether this is also true for Hyp- surus Caryi (Figure 9). The sample of 30 Hypsurus car//'collected on June 6, 1971, was used in this comparison because of the large size of the collection. Since the range in length of females taken in this collection was 165 to 210 mm ( to inches) SL or close to the limits of the 130 to 215 mm ( to inch) range of gravid females taken during the entire study, I assumed the sample included all age groups with the possible exception of the youngest. If older females spawn earlier in the season as proposed by Eigenmann (1894), I would have expected to find larger females with broods further along in development. Utilizing the Pearson correlation coefficient, a correlation was found to exist between size of female and mean size of her embryos, with r = However, this correlation was found to be insignificant at the 95% FIGURE 10. Drawing of a Hypsurus caryi embryo, 40 mm SL, showing spatulate-shaped dermal flaps interdigitating with soft fin ray elements. Prenatal Gas Exchange It was found that median fin membranes, including the spatulate-shaped dermal flaps (Figure 10) which interdigitate with the soft fin ray elements, were made up of dense beds of capillaries (Fi
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