THE KIMMSWICK AND PLATTIN LIMESTONES 
195 
2. Beatricea gracilis Ulrich. 
Plate XXIII, fig, 7 
Stems 6 to 7 mm. in diameter, and several centimeters long, 
characterized by the presence of granules connected by the char- 
acteristic more or less anastomozing lines as in typical Beatricea. 
Strongly convex septal lamellae occur at intervals and occupy 
almost the entire width of the stems. In the Auburn limestone 
at the quarry a short distance north of Auburn, in Lincoln 
County. • 
3. Cornulites flexuosus Hall. 
Specimens closely resembling the type of Cornulites fiexuosus 
(Pal. New York, vol. VII, Supplement, 1888, p. 18, pi. 115, fig. 
41), from the Trenton of New York, occur on moderately convex 
forms of Rafinesquina alternata, at the top of the Plattin lime- 
stone in the city quarry, at the Henry Hamilton locality, and 
elsewhere in Ralls County. Usually this species is not listed 
from below the Trenton. 
4. Comarosystites shumardi Meek and Worthen 
Plate XXII, figs. 24 A, B 
The type of Comar ocystites shumardi was described from the 
Kimmswick limestone at Cape Girardeau, in the southeastern 
part of Missouri. The specimens here figured came from the 
top of the Kimmswick limestone exposure at the large quarry 
about ^ mile northwest of West Kimmswick, in Jefferson County. 
One specimen consists of a fragment of the theca, bordering on 
the anal opening, and exposing the interior side. The plates, 
from this point of view, present a stellate appearance, the rays 
extending from the center of one plate to the center of one of 
the immediately adjoining plates. On the sides of the stellate 
rays the pores open in rows parallel with the crest of the rays. 
Viewed along the suture planes, between the thecal plates, the 
pores are elongated vertically and tend to form vertical series. 
A second figured specimen consists of a single detached plate. 
