528 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 127 
either side. Median septum short. Pseudodeltidium appearing as a vestige of 
that plate at the apex. 
Brachial valve convex in lateral profile and broadly convex in anterior profile. 
Sulcus deep, extending from the beak to the anterior margin and drawn into a 
short tongue anteriorly in the direction of the pedicle valve. Flanks bounding 
sulcus moderately convex with steep slopes to the posterolateral extremities but 
with more gentle anterior slopes. Cardinalia ponderous. Brachiophores widely 
divergent and supported by thick lateral swellings of callus. Cardinal process a 
simple ridge. 
Exterior of both valves marked by narrowly rounded costellae. 
Measurements in mm.—Holotype (brachial valve), length 4.8, width 7.5. 
Types.—Holotype: 110148a; figured paratypes: 110148b, 110149; unfigured 
paratype: 110148c. 
Horizon and locality.—Effna-Rich Valley formations in Virginia:. At Porter- 
field Quarry, 5 miles east of Saltville, Maccrady (T.V.A. 218-NW) Quadrangle. 
Edinburg formation (Liberty Hall facies) in Virginia: 1.8 miles S. 4° W. of 
Bethel Church, 5.9 miles east of Harrisonburg, Harrisonburg (15’) Quadrangle. 
Discussion.—This species can be readily distinguished from K. ornata with 
which it occurs by its convex brachial valve and predominantly radial orna- 
mentation. 
KULLERVO PUNCTATA Cooper, new species 
Plate 90, G, figures 43-46 
Shell fairly large for the genus, hinge forming the widest part; shell thick; 
surface costellate and filate, the two of nearly equal strength so that the intersec- 
tion produces deep pits, arranged in radial and concentric rows. 
Pedicle valve moderately convex in profile; moderately full in median and 
lateral regions. Interarea long ; spondylium wide and moderately deep, the char- 
acteristic three tracks well developed. Median track deep; lateral tracks slightly 
overhanging the median one. Median septum moderately long. 
Brachial valve gently convex in both profiles; interior with ponderous noto- 
thyrial platform, thick and long median ridge and long brachiophores. 
Measurements in mm.— 
Hinge 
Length Midwidth width 
Holotype (pedicle Walvey -cidieetie: sc ete 2 sane 6.7 ? 6.6 
Paratype (brachial valve 117018b)............ She 5.8 ? 
Types——Holotype: 117018a; figured paratypes: 117018b,c. 
Horizon and locality —Botetourt ? formation in Virginia: On the south side 
of the paved road 0.2 mile east of Strasburg Junction, Strasburg (15’) Quad- 
rangle. 
Discussion.—This species is larger than the other described forms from lower 
Middle Ordovician rocks and is distinguished from them by the punctated 
appearance of the exterior. 
