THE EURYPTERIDA OF NEW YORK _ AOI 
[1909, p. 406], and has recognized the two largest fragments as parts of a 
segment and a telson of an eurypterid, referring them tentatively to 
Pterygotus; and the smaller fragments as portions of segments, the sculp- 
turing of which recalls that of certain later species of Eurypterus, such 
as E. punctatus and E. hibernicus. He suggests that the 
Brazilian material of Hastimima includes specimens of more than one 
species, if not of more than one genus. 
Figure 88 Hastimima whitei White. Fragment of tergite. Natural size 
Through the courtesy of the National Museum, we have been enabled 
to study the Brazilian specimens of Hastimima and have derived the fol- 
lowing notes on these interesting fossils. 
The material, although fragmentary, includes three specimens that 
may be referred without doubt to parts of the integument of an eurypterid 
and these we describe more fully. 
One is a portion of a segment, another of the telson and a third a 
proximal part of a leg with the coxa. | 
The fragment of a segment is represented by White’s figures 1, 1a, 
and 2 of plate to. 
The first [text fig. 88] is a subtriangular fragment bounded on two sides 
by the original margins that meet in an acute angle. One of these margins is 
