GRAPTOLITES OF NEW YORK, TART 2 



235 



P- 2, 5> 



Corynoides calicularis Nicholson & Lydekker. Man. of Pal. 1889 



fig. 96 

 Corynoides calicularis Gurley. Jour. Geol. 1896. 4:94,301 

 Corynoides calicularis Ruedemann. N. Y. State Mus. Bui. 42. 1901. j ) . 5 1 5 



et seq. 

 Corynoides calicularis Clark. Geol. Mag. Ser. 4, v. 9. 1902. p. 498 

 Corynoides calicularis Weller. Geol. Sur. N. J. Pal. 1903. 3:52 



Description. Rhabdosome short (6—8 mm) and relatively broad (about 



i mm), of uniform width, consisting of a sicula and three thecae. Sicula 



small (2 mm), conical, without apertural processes, in mature specimens 



126 



127 



129 



■^ 



Fie. 126-31 Corynoides calicularis Nicholson. Enlargements (x 7) of rhabdosomes from the Nor- 

 manskill shale at Glenmont, N. Y. 



slightly recurving, suspended from a long and slender nema. Thecae 

 slender tubes of uniform width, all originating close to the sicula, arranged 

 in a bundle which forms an angle of 50 with the sicula. Apertures straight, 

 normal to the axes of the thecae, all adjoining at the distal extremity of the 

 rhabdosome, each provided with a pair of usually curved strong spines, 

 which often appear to be raised upon a tonguelike process. Nema thin and 

 filiform. 



