Se i a ES 
ey <i 376 THE CRINOIDEA CAMERATA OF NORTH AMERICA. 
linear, smaller than the second, quadrangular with convex upper and lower 
faces ; the second pentangular, very little wider and longer than the first. Dis- 
tichals two; the upper one wider than the costal axillary ; followed by two 
palmars in two series except in the division facing the anal side, in which 
there is but one palmar which is axillary and gives off two post-palmars. 
At four sides the palmars meet with their fellows of adjoining rays, but at 
the anal side only the post-palmars. Arm openings equidistant, directed 
horizontally. Arms twenty-two, short, rounded on the back ; composed of 
two series of moderately long joints, distinctly interlocking. Interradials 
| from one to three; the first very large, slightly elongate; the upper ones, 
if present, quite small. Anal plate longer than the radials, supporting three 
all and two plates. Ventral disk low hemispherical, the plates convex. The 
i orals and radial dome plates, which are more or less tumid, are separated 
; it 7 by numerous small supplementary pieces. Anal tube long, subcentral, con- 
y/ structed of convex pieces. 
; fforizon and Locality. —Same as last. , 
L'ype in the (Worthen) Illinois State collection, Springfield. 
Batocrinus turbinatus, var. elegans Hatz. 
Plate X XVII. Figs. 6a, b. 
1858. Actinocrinus turbinatus, var. elegans — Hau; Geol. Rep. Iowa, Vol. I., Part IL, p. 588, Plate When 
ce Fig. 5. 
Ps, j 1881. Batocrinus turbinatus, var. elegans —W. and Sp. ; Revision Paleocr., Part II., p. 168. 
ea More elongate than the typical form; the dorsal cup nearly twice as high 
if as the ventral disk; sides convex from the top of the basals to the arm 
NA facets. Basal disk short, distinctly lobed and spreading outward. Radials, 
costals, distichals, and palmars arranged as in the typical form, but there 
are quite frequently twenty arms (four to each ray) in place of twenty-two; 
and the plates forming the arm bases are less projecting. 
im Horizon and Locality. — Same as last. 
aa Type in the (Worthen) Illinois State collection. 
a | Batocrinus Macbridei W. and Sp. 
Plate XXX, Figs. 1, 2, 3. 
cf i 1887. W. and Sp.; Geol. Rep. Illinois, Vol. VIII, p. 172, Plate 15, Fig. 4, and Plate 17, Figs. 11 
fs and 12. 
|| 1390, S.A. Mintzer; North Amer. Geol. and Paleont., p. 228, Fig. 253. 
