THE FOSSIL STALK-EYED CRUSTACEA 113 



Relation. — Obviously akin to C. umpquaensis, but differs in having 

 a longer major manus, with margins entire instead of dentate, with a 

 tooth in the gape between fingers, with the tubercles of the outer 

 surface mostly in the distal lower quarter of the palmar portion in- 

 stead of in the middle of the lower half. The propodal finger has an 

 entire instead of a crenulate upper margin. 



CALLIANASSA COWLITZENSIS, new species 

 Plate 26, figs. 1-3 



Holotype. — Outer surface of manus (pi. 26, fig. 2) evenly convex 

 in a vertical direction, flat midway in a longitudinal direction but 

 curving inward toward the ends. Upper proximal angle with a 

 large blunt tooth projecting backward ; from the end of the tooth the 

 upper margin is directed forward and downward in a slightly 

 sinuous line. A row of submarginal punctae. The margin is en- 

 tire ; the four or five tubercles which appear near the middle do not 

 pertain to the outer layer of shell. A stout tooth {t, figs. 1 and 2, 

 pi. 26), tip broken off, projects from the distal end into the inter- 

 digital gape just below the insertion of the dactylus. At the basfe 

 of the tooth on the outer surface there is a small, low, vertically 

 oblong tubercle, and at twice the distance from the end margin 

 another similar, smaller tubercle. These tubercles may not appear, 

 or may be less strong, on the real outer shell. The same may be said 

 of various tubercles on the inner side near the upper distal corner 

 and near the articulation of the dactylus. The inner surface of the 

 manus is flat along the upper and lower margins but convex verti- 

 cally in the intermediate space (pi. 26, fig. 1). 



Additional mate rial.— Tha carpus (pi. 26, fig. 3) associated with 

 the holotype but belonging to another specimen has an outer surface 

 convex in a vertical direction and nearly flat in the opposite direc- 

 tion. The distal margin is regularly concave except at the ends, 

 the lower margin curves rapidly upward in its proximal half. 



Measurements.— Kight manus, holotype, length through the mid- 

 dle 26 mm.; superior length 22.5 mm., length measured from the 

 gape just above the immovable finger 22.8 mm., height (approximate) 

 18.3 mm. Right wrist of another specimen of apparently the same 

 species, distal height 11.8 mm., proximal height (approximate) 8 mm., 

 length through the middle 12.4 mm. 



6><7<7wrr6?nc€.— Washington : On Coal Creek, Cowlitz County, about 

 214 miles up creek from Mount Solo; section 2, township 8 north, 

 range 3 west; Eocene series; one right manus without finger or 

 lower margin, holotype. A right wrist belonging to a smaller speci- 

 men may represent the same species. Holotype in University of 

 Washington. 



