312 NEW YORK STATE MUSEUM 
the large crawling legs of a form related to Stylonurus, and not two 
somites of the abdomen as indicated by Hall, claiming that ‘its elliptical 
or ovoid sections without any flattening of the epimera, the very consider- 
able overlapping of the joints, and the configuration of the suture, are 
Figure 68 Stylonurus ? wrightianus (Dawson). Dorsal and lateral views of the original 
specimen, and enlargement of surface. (From Hall & Clarke) 
more strongly indicative of the nature and requirements of a limb than 
of abdominal segments.’’ The entire specimen of Stylonurus obtained at 
Otisville would seem to corroborate the latter view. 
Stylonurus sp. a, £, y, 4. 
Besides the fairly complete species of Stylonurus (S. cestrotus 
and S. myops) which the shales of the Shawangunk grit at Otisville 
