NO. 13 DIKELOCEPHALUS AND OTHER GENERA 387 



Genus CONOKEPHALINA Brogger 



Conokephalina Brogger. 1886, Ceol. Foren. i Stockholm Forhandl., No. loi, 

 Vol. 8, pt. 3, p. 206. (Names subgenus to include Conoccphalites 

 ornatus Brogger, 1877, Dikelocephalus osceola Hall, D. misa Hall, D. 

 spiniger Hall, but does not define subgenus.) 



Conocephalina Brogger, Gronwall, 1902, Danmarks Geol. Unders. Raekke 

 2, No. 13, p. 150. (Uses generic name, but does not define genus.) 



Conocephalina Brogger, Lorenz, 1906, Zeitschr. deutsch. geol. Gesellsch., 

 Bd. 58, Pt. 2, p. 64. (Revives genus Conoccphalites, places Conokepha- 

 lina Brogger in it, and takes a new type for Conokephalina, in Cono- 

 ccphalites emmrichi Barrande.) 



Conokephalina Brogger, Walcott, 1913, Research in China, Carnegie Inst. 

 Washington, 1913, Vol. 3, The Cambrian Faunas of China, p. 137, pi. 13. 

 (Discussed as below.) 



Genotype. — Conocephalites ornatus Brogger, 1877, Nyt Mag. 

 Naturvid., Vol. 24, p. 37, pi. 3, fig. 5 (this paper, pi. 64, fig. 8, p. 400) . 



This genus as pointed out by Brogger occupies an intermediate 

 position between forms referred to Dikelocephalus and Ptychoparia 

 {Conoccphalites as used by Brogger). He refers to Conokephalina, 

 Dikelocephalus osceola Hall, D. misa Hall and and D. spiniger Hall. 



In the present paper, D. misa is placed under Conokephalina, D. 

 osceola is made the type of a new genus Osceolia, and D. spiniger the 

 type of the new genus Calvinella. 



Conokephalina ornata is illustrated on plate 64, figure 6, in order 

 that it may be compared with C. misa, plate 68, figures i and 2. In my 

 report on the Cambrian faunas of China ^ a number of species Inve 

 been referred to Conokephalina and an illustration given of Cono- 

 cephalites emmrichi Barrande (pi. 13, fig. 7), a form that may be 

 closely related to Conokephalina. If this is correct, C. misa cannot 

 be related to Conokephalina. We must wait for the discovery of 

 entire specimens of C. misa and C. ornata before deciding to which 

 family they may belong. 



CONOKEPHALINA MISA (Hall) 



Plate 68, figs. 1-3 

 Dikelocephalus misa Hall, 1863, Sixteenth Ann. Kept. New York State 



Cab. of Nat. Hist., 1863, p. 144, pi. 8, fig. 15; pi. 10, figs. 4, 5 (6, 7, 8 ?). 



(Describes and illustrates species.) 

 Dikelocephalus misa Hall, 1867, Trans. Albany Inst., Vol. 5, p. 126, pi. 3, 



fig. 15; pi. 5, figs. 4, 5 (6, 7, 8 ?). (Reprint of paper of 1863.) 

 Conokephalina misa (Hall), Brogger, 1886, Geol. Foren. i Stockholm 



Forhandl., Vol. 8, No. loi, p. 205. (Refers species to Conokepjialina.) 

 Dicellocephalus misa Hall, Berkey, 1898, American Geol., Vol. 21, p 290, 



pi. 20, figs. 12, 13. (Not C. misa.) 



^ Research in China, Vol. 3, Carnegie Institution of Washington, Pub. No. 

 54, 1913, The Cambrian Faunas of China pi. 13. 



