Page:Walcott Cambrian Geology and Paleontology II.djvu/129

NO. 4 Acrotreta venia Walcott, p. 75, pl. 14, figs. 4, 4a.

Orthotheca glabra Walcott, p. 75, pl. 14, figs. 5, 5a.

Albertella pacifica Walcott, p. 76, pl. 14, fig. 6.

''Stephanocarc ? monkei'' Walcott, p. 77, pl. 14, fig. 7.

Ptychoparia granosa Walcott, p. 77, pl. 14, fig. 8.

Ptychoparia (Emmrichella) theano (Walcott), p. 79, pl. 14, figs. 9, 9a.

Ptychoparia kochibei Walcott, p. 78, pl. 14, figs. 10, 10a.

Crepicephalus convexus Walcott, p. 79, pl. 14, figs. 11, 11a.

''Pterocephalus ? liches'' Walcott, p. 80, pl. 14, fig. 12.

Inouyia capax (Walcott), p. 80, pl. 14, fig. 13.

''Inouyia ? thisbe'' Walcott, p. 81, pl. 14, fig. 14.

Agraulos sorge Walcott, p. 82, pl. 15, fig. 1.

Lisania bura (Walcott), p. 82, pl. 15, fig. 2.

Chuangia batia (Walcott), p. 84, pl. 15, figs. 3, 3a.

Chuangia fragmenta Walcott, p. 84, pl. 15. fig. 4.

Chuangia nais Walcott, p. 84, pl. 15, fig. 5.

Chuangia nitida Walcott, p. 85, pl. 15, fig. 6.

Levisia agenor (Walcott), p. 86, pl. 15, fig. 7.

Anomocare ephori Walcott, p. 90, pl. 15, figs. 8, 8a.

Anomocare lisani Walcott, p. 90, pl. 15, figs. 9, 9a-b.

Anomocarella hermias Walcott, p. 92, pl. 15, fig. 10.

Anomocarclla macar Walcott, p. 92, pl. 15, figs. 11, 11a-b.

Coosia superba Walcott, p. 94, pl. 16, figs. 1, 1a.

Coosia robusta Walcott, p. 97, pl. 16, figs. 2, 2a.

Asaphiscus iddingsi Walcott, p. 99, pl. 16, fig. 3.

Bathyuriscus manchuriensis Walcott, p. 97, pl. 16, fig. 4.

Solenopleura chalcon Walcott, p. 83, pl. 16, fig. 5.

Anomocare læve Angelin, p. 87, pl. 17, figs. 1, 1a-c.

Anomocare convexa Walcott, p. 87, pl. 17, figs. 2, 2a-d.

Anomocarella smithi Walcott, p. 92, pl. 17, figs. 3, 3a.

Levisia richardsoni Walcott, p. 86, pl. 17, figs. 4, 4a.

Levisia nasuta Walcott, p. 87, text figs. 7, 7a; pl. 17, fig. 5.

The memoir on the Cambrian faunas of China is now well advanced and will probably be printed and distributed the latter part of the year 1911.

Ventral valve, depressed subconical, with a minute beak curving over and concealing the pseudo-deltidium. The cardinal slope is bent abruptly backward and downward so as to form a narrow false area on each side of a wide, open, triangular space.

Dorsal valve transverse, gently convex, with the nearly straight posterior margin shorter than the greatest width of the valve; beak minute, marginal; false area unknown.

Surface marked by concentric, slightly irregular, rounded lines and ridges of growth that may or may not be grouped in bands of