. L 0 A I â » â¢5mm 0 B â¢3mm Fig. 17. A. Tricellaria monotrypa (Busk). St. 934, New Zealand. Fertile and non-fertile zooecia. B. Scrupo- cellaria ornithorhyncus (Thorn.). Port Phillip Heads. To show tuberculation of distal border of aperture of fertile zooecium. Curious shapes of spines may be due to regeneration. The ovicell (Fig. 17 A) was observed and described by Busk (1852^). It is shallow and endozooecial, incapable of accommodating the whole embryo. The fertile zooecium bears a little spike-like spine on the inner distal corner, curved towards the ovicell. 2. Tricellaria a
. L 0 A I â » â¢5mm 0 B â¢3mm Fig. 17. A. Tricellaria monotrypa (Busk). St. 934, New Zealand. Fertile and non-fertile zooecia. B. Scrupo- cellaria ornithorhyncus (Thorn.). Port Phillip Heads. To show tuberculation of distal border of aperture of fertile zooecium. Curious shapes of spines may be due to regeneration. The ovicell (Fig. 17 A) was observed and described by Busk (1852^). It is shallow and endozooecial, incapable of accommodating the whole embryo. The fertile zooecium bears a little spike-like spine on the inner distal corner, curved towards the ovicell. 2. Tricellaria aculeata (d'Orbigny). Bicellaria aculeata d'Orbigny, 1847, p. 8. Tricellaria aculeata d'Orbigny, 1842, pi. ii, figs. 1-4; Harmer, 1923, p. 355; Monod and Dollfus, 1932, p. 61.
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
