66
SMITHSONIAN MISCELLANEOUS COLLECTIONS
VOL. 57
| DESCRIPTION OF PLATE 12 | ||||
| s. Stomach. cs. Intestine. ul. Umbrella lobes. | ||||
| PAGE | ||||
| Eldonia ludwigi Walcott (see also text fig. 5 and pls. 8-11) | 46 | |||
| Fig. | 1 and 2. | Two specimens showing corrugated stomach, intestine, and traces of the radial canals of the umbrella. ✕ 2. U. S. National Museum, Catalogue Nos. 57552 and 57553, respectively. | ||
| 3. | A large specimen slightly reduced in size. This shows a portion of the lobes of the umbrella (ul), traces of the radial canals in the lobes, and the stomach (s). U. S. National Museum, Catalogue No. 57554. | |||
All of the specimens illustrated on this plate are from locality (35k) Middle Cambrian; dark siliceous shales in the Burgess shale of the Stephen formation on the west slope of the ridge between Mount Field and Wapta Peak, one mile (1.6 km.) northeast of Burgess Pass, above Field, British Cohimbia.
