Hughmilleria shawangunk Clarke 
Page 342 
See plates 65, 66; plate 69, fig. 1 
1 Youngest (nepionic) individual observed. Shows the large carapace, 
the immense compound eyes, the swimming legs and the incomplete 
number of segments. x 30 
2 Very young (nepionic) individual showing the broad doublure, the prom- 
inence of the large compound eyes, the ocelli and the narrow tergites. 
The carapace is slightly shortened by compression. x 16 
3 A like growth stage showing the ocellar mound. x 16 
4-10 A series of carapaces of early growth stages showing the variation 
in outline and in the position of the eyes, largely due to different direc- 
tions of compression. Figures 6, 8-10 show the intramarginal posi- 
tion of the eyes. Figure 4, x 6; figures 5 and 8, x 5; figures 6, 7, 9, 
Io, X 3 
11, 12 Two carapaces showing the outline of the compound eye; figure 
12 also shows that of the first tergite. Figure 11, x 5; figure 12, x 3 
13 A young neanic individual (9 mm long) showing large eyes and com- 
plete number of segments in abdomen 
Horizon and locality. Shawangunk grit. Otisville, Orange co., N. Y. 
Figures 1, 4, 7, 8 represent types [N. Y. State Mus. Bul. 107, pl. 4, fig. 
2; pl.s, fig. 5, 8,9]. All originals are in the State Museum ~ 
568 
