40 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 148 



row. Spines progressively closer to each other ; those of the first two 

 pairs strong, the last two progressively more slender. Spines of last 

 pair directed straight backward, their distance greater than between 

 the third and fourth pairs. Surface of test smooth. 



Discussion. — This form, as far as can be ascertained from the frag- 

 mentary material, does not greatly differ from several Middle Cam- 

 brian species of the genus, such as O. curticei Walcott, and O. con- 

 vexus Rasetti, but is readily distinguished by the course of the pleural 

 furrows and the spacing of the marginal spines. The writer (Rasetti, 

 1946) described a Dresbachian species of the genus which, however, 

 has only 3 pairs of marginal spines. 



Occurrence. — U.S.G.S. collection 2406 (= author's collection 

 cnb/10), Comby Ridge. The species occurs in the same piece of rock 

 with abundant Ankoura triangularis. 



Disposition of material. — Figured specimens : U.S.N.M. 144548. 



Order PTYCHOPARIIDA 

 Family LONCHOCEPHALIDAE Hupe, 1953 



Genus TERRANOVELLA Lochman, 1938 



Type species. — Terranovella ohscura Lochman. 



TERRANOVELLA DORS ALIS (HaU) 



Plate 6, figure 7 



Conocephalites? (Arionellusf) dorsalis Hall, 1863, p. 222. 



Ptychoparia dorsalis (Hall) Vogdes, 1890, p. 141. 



Lonchocephalus sospita Walcott, 1916a, p. 195, pi. 36, figs. 1, la. 



Terranovella htittsi Resser, 1938a, p. 100, pi. 15, figs. 22-26. 



Terranovella dorsalis (Hall) Raasch and Lochman, 1943, p. 234, pi. 35, figs. 



3-10, 17. 

 Terranovella dorsalis (Hall) Rasetti, 1961, p. 118, pi. 22, figs. 7-13. 



Occurrence. — Type locahty for T. buttsi is U.S.N.M. 35s, near 

 Abingdon, Va. Collected by the author in the uppermost beds of the 

 lower limestone member of the Nolichucky (Crepicephalus zone) at 

 localities cnn/1, cnn/14, cnn/15, cnn/19, and cnn/20. 



Types.— Uolotype of T. buttsi: U.S.N.M. 94984. Plesiotype: 

 U.S.N.M. 144549. 



Genus GLAPHYRASPIS Resser, 1937 



Type species. — Liostracus parvus Walcott. 



GLAPHYRASPIS PARVA (Walcott) 



Plate 10, figures 9-17 



Liostracus parvus Walcott, 1899, p. 463, pi. 65, fig. 6. 

 Glaphyraspis parva (Walcott) Resser, 1937, p. 12. 



Raaschella occidentalis Lochman, in Lochman and Duncan, 1944, pi. 43, pi. 4 

 figs. 1-5. 



