Eurypterus maria Clarke 
Page 84 
See plate 22 
1 Smallest specimen observed. Shows broad short carapace; broad pre- 
abdomen; large eyes; swimming legs; abdomen with apparently but 
eight segments and short telson. Paratype. x 6. (length 5.5mm) 
Somewhat older individual, having 12 segments, but still retaining the 
broad carapace and preabdomen. Paratype. x 5. (length 8mm) 
3 Carapace of young individual, showing the great width of carapace, 
the large lateral eyes with ocular node and visual area and prominent 
ocellar tumescence. x 18. (length 1.8mm) 
4 Carapace and first tergite of somewhat older individual, still showing 
large prominent lateral eyes. x 6 
Young carapace with a swimming leg. Eyes show ocular node and 
visual area. X12 
A larger carapace with smaller eyes, retaining both the ocular node and 
visual area. x 3 
7 Another carapace, showing the crescentlike form of the visual area, 
Paratype. X 3 
8 Very young individual, retaining carapace and preabdomen; with slight 
lateral compression. Shows rim and very prominent lateral eyes and 
oceilar mound or tumescence. xX 5 
g Another young individual, retaining more nearly the original form and 
strong traces of ornamentation on tergites. Paratype. x 5%. (length 
8mm) 
ro An older carapace retaining the large sized lateral eyes of the immature 
condition. x 3. (length 7.9mm) 
ir A young individual showing the carapace with the swimming leg and. 
eight segments 
t2 The type specimen; a probably mature individual. Natural size 
All originals are from the Shawangunk grit, Otisville, Orange co., N. Y., 
and are in the State Museum 
to 
ON ON 
