486 



NEW YORK STATE MUSEUM 



Note on Caryocaris wrightii Salter 



The writer has identified a small fossil from the lowest Deepkill zone 

 with Caryocaris cf. curvilatus Gurley and described it in the sup- 

 plement of Memoir 7, stating that though Dr Gurley has referred these 

 bodies to the graptolites [1896, p.85], his views are greatly at variance with 

 those of the authors of the Monograph of the British PJiyllopods. 



In the meanwhile an opportunity has presented itself of studying the 

 excellently preserved material of C . wrightii and curvilatus from 

 the Pinon range of Nevada, on which Dr Gurley 's conception of the grap- 

 tolite nature of Caryocaris is based. Noting that this allows an entirely 



Fig. 469-82 Caryocaris wrightii Salter. Fig. 469-70 Copies of Gurley's figures of Caryocaris curvilatus. 

 (1896, pi. 4, fig. 3 ; pi. 5, fig. 3). Fig. 471 Copy of one of Gurley's figures of Caryocaris wrightii, Fig. 472 78 Various 

 aspects of carapaces. Fig. 479-81 Abdomina. Fig. 482 Copy of figure by Jones and Woodward, showing carapace and tail. 

 Fig. 472-81 are drawn in natural size. The originals are in the National Museum 



different interpretation, the writer desires to improve this opportunity of 

 presenting his view. 



Dr Gurley has distinguished two different groups of bodies, viz, ( i ) the 

 pod-shaped bodies described by Salter and the Monographers of the British 

 Phyllopods as the carapace of Caryocaris [see text fig. 469, 470] and (2) 

 "winged bodies." The latter [see text fig, 471 | arc. considered as the com- 

 plete bodies of Caryocaris, consisting of " two symmetrical paired lateral 

 appendages attached to the distal end of a single median proximal portion 

 on which thecae could perhaps be traced." The bodies of the first grouj 



