214 | PALEOZOIC PALEON'FOLOGY. 
COENOGRAPTUS GRACILIS (Hall). 
Plate XVI., Fig. 19. 
1859. Graptolithus gracilis Hall, Pal. N. Y., vol. ILD ps sng: 
figs. 1-7. 
Description.—Polypary consisting of two principal stipes, which 
diverge from a point of attachment, and in the adult forms a sig- 
moidal curve. The branches arise from the outer sides of the two 
principal stipes; they are slender, gradually enlarging and bear 
thece only on one side, the thece being rather distant, their length 
greater than the width of the branch upon which they are borne. 
Remarks.—This species is represented in the New Jersey collec- 
tions only by exceedingly imperfect specimens, which but partially 
exhibit the details of structure. The accompanying illustration is 
copied from Hall’s. 
CORYNOIDES CALIGULARIS Nich. 
Plate XVI., Figs. 12-13. 
1867. Corynoides calicularis Nich., Geol. Mag., vol. IV., p. 108, pl. 
Y, fies. 9-11. 
Description—‘“The stipe varies in length from one-third to half 
an inch, and has an average breadth of one-twentieth of an inch; the 
base or proximal extremity is provided with two small, slightly-di-' 
verging spines or mucros, which are wanting in other less perfect 
specimens, when the stipe terminates below by tapering to a point. 
There are no cellules, the lateral margins of the stipe being perfectly 
plain; but the polpary expands at its distal extremity into a sort 
of cup or calyx, the free edge of which is divided into four or five 
equal or unequal teeth. There are no certain traces of any central, 
solid axis, but the surface of the stipe is sometimes striated.”— 
Nicholson. 
Remarks.—Certain specimens from the graptolite locality near 
Branchville have been identified by Dr. Reudemann as Corynoides 
