38 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 97 



Oryctocephalus indicus (Reed) 



Zacanthoidcs indicus Reed, Mem. Geol. Surv. India, Pal. Ind., ser. 15, vol. 7, 



p. 9, pi. I, fig. IS, 1910. 

 Oryctocephalus cf. rcynoldsi Reed, idem, p. 12, pi. i, figs. 22-24, 1910. 



Reed recognized the generic position of the cranidium but referred 

 the pygidium to Zacanthoides. Since both come from the same bed, 

 at the same place, they can be regarded as representing one species. 



O. indicus is chiefly distinguished from O. saltcri, which occurs 

 in beds at least 400 feet higher in the section, by the longer pygidial 

 axis with proportionate reduction of the pleural lobes. 



Middle Cambrian (horizon 2) ; Parahio Valley, Spiti, India. 



Cotypcs. — Geol. Surv. India plastotypes, U.S.N.M. no. 96489. 



Oryctocephalus saitoi, n. sp. 



Oryctocephalus cf. rcynoldsi Saito, Japanese Jonrn. Geol. Geogr., vol. 11, 

 no. 3, p. 232, pi. 27, figs. 16-20, 1934. 



Saito recognized the distinctness of this species from 0. rcynoldsi 

 and O. orientalis. He pointed out that it has one more pair of glabel- 

 lar furrows than in O. rcynoldsi. 



Middle Cambrian, Ptychoparia beds ; near Hwangju, Hwanghaido, 

 Chosen. 



Cotypcs. — Geol. Inst. Imp. Univ. Tokyo nos. 513, 516, 574. 



Oryctocephalus walcotti Resser 



Oryctocephalus icalcotti Resser (part), Smithsonian Misc. Coll., vol. 97, 

 no. 3, p. 9, pl- I, fig- 23, 1938. 



In the description of this species a cranidium of Oryctocare gcikici 

 was mistakenly assigned to it. The description was written before 

 the genus was studied ; consequently, the fact that much better material 

 is available from the Spence shale was overlooked. 



Middle Cambrian, Lakeview ; (loc. 37n) Lakeview, Pend Oreille 

 Lake, and Spence; (loc. 55c) 5 miles southwest of Liberty, Idaho. 



Holotypc.—U.S.'^.'M. no. 95038. 



PARABRISCOIA Kobayashi, 1935 



Parabriscoia flabellifera (Hall and Whitfield) 



Dikellocephalns flabellifcr Hall and Whitfield, U. S. Geol. Expl. 40th 

 Par., vol. 4, p. 227, pl. 2, figs. 29-30, 1877. 



Upper Cambrian, Secret Canyon?; west side Pogonip Mountain, 

 White Pine District, Nevada. 



Holotypc. — U.S.N.M. no. 24569. 



