Published online by Cambridge University Press: 01 May 2009
In his monograph of Palæozoic Arachnida published in 1904, Dr. Fritsch divides the order Araneæ into two suborders—the Arthrarachnæ, Haase, containing the Arthrolycosidæ, and the Pleuraraneæ, Fritsch, containing the Hemiphrynidæ (Hemiphrynus) and the Promygalidæ (Promygale).
page 509 note 1 Geol. Survey, Illinois, 1868, p. 568.
page 509 note 2 Mem. Bost. Soc. Nat. Hist., vol. iv, pl. xl, figs. 1, 10, 12.Google Scholar
page 509 note 3 Ibid., fig. 11.
page 509 note 4 Geol. Mag., Vol. IX, p. 385, 1872Google Scholar (Ph. ‘Architarbus’ subovalis, H. Woodw.).
page 510 note 1 Proc. Amer. Acad. Arts & Sci., vol. xx, pp. 17–18.Google Scholar
page 510 note 2 Mem. Bost. Soc. Nat. Hist., vol. iv, pp. 446–7.Google Scholar
page 511 note 1 Journ. Geol. Chicago, vol. xi, p. 179, pl. v, fig. 1, and pl. vii, fig. 1, 1903.Google Scholar
page 511 note 2 Mem. Bost. Soc. Nat. Hist., vol. iv, p. 449, pl. xl, fig. 1 (ventral view).Google Scholar
page 511 note 3 Pal. Arachn., pp. 33, 34, fig. 37a (dorsal view), not fig. 37b.