CATALOGUE OF TRILOBITES. 293 



CRYPH^US. 



Crepicephalus Owen, 1852; Kept. Geol. Survey Wisconsin, Iowa and 

 Minnesota, p. 576. (See Lonchocephalus.) There is hardly a 

 question that Dr. D. D. Owen had before him when he wrote the 

 description of his genus Crepicephalus a true Ptychoparia. He 

 refers the following figures to the genus: Plate 1, fig. 8, Crepi- 

 cephalus'!, pygidium from the Miniskah Trilobite grit. Plate 1, 

 fig. 13, Crepicephalus? wisconensis (n. s.), part of cephalothorax and 

 a portion of the cephalic shield of D. granulosus? Plate 1 a, fig. 

 10, glabella of Crepicephalus n. g., near Miniskah. Plate 1 a, tig. 

 14, pygidium of Crepicephalus? miniscaenis n. s., from Miniskah 

 grits. Plate 1 a, fig. 16, pygidium and portion of Crepicephalus? 

 and portions of cephalothorax of that genus, from the Miniskah 

 Trilobite grit. Plate 1 a, fig. 18, glabella of Crepicephalus, near 

 Miniskah, Mississippi River. 



(Bathyurus?) angulaius H. & W. (See Ptychoparia angulatus.) 



(Loganellus) anytus H. & W. (See Ptychoparia anylus.) 



(Loganellus) centralis Whitf. (See Ptychoparia oweni.) 



? GIBBSI Whitf., 1880; Ann. Rept. Geol. Survey Wisconsin, 1879, p. 



50. Berlin, Green Lake Co., Wis. Taconic. 



GIBBSI Whitf., 1880; Geol. Wisconsin, vol. 2, p. 67. 



- GIBBSI Whitf., 1882; Geol. Wisconsin, vol. 4, p. 184, pi. 10, figs. 12, 13. 

 (Loganellus) granulosa H. & W. (See Ptychoparia granulosa.) 



(Loganellus) haguei. (See Lisostracus haguei and Ptychoparia haguei.) 



(Loganellus) maculosus H. & W. (See Ptychoparia maculosus.) 



(Loganellus) montanensis Whitf . (See Ptychoparia montanensis.) 



(Loganellus) nitidens H. & W. (See Ptychoparia nitidens.) 



ONUSTUS Whitf., 1878; Ann. Rept. Geol. Survey Wisconsin, 1877, p. 



53. Et trick and Eau Claire, Wis. Taconic. 



- OXUSTUS Whitf., 1882; Geol. Wisconsin, vol. 4, p. 182, pi. 1, figs. 22, 23. 

 oweni. (See Agraulos oweni and Ptychoparia oweni.) 



(Loganellus) planus Whitf. (See Ptychoparia planus.) 



(Loganellus) quadrans H. & W. (See Ptychoparia quadrans.) 



(Loganellus) simulator H, & W. (See Ptychoparia nitidens.) 



(Loganellus) unisulcatus H. & W. (See Ptychoparia unfsulcatus.) 



? wisconsensis Owen. (See Anomocare wisconsensis.) 



Crepicephalus Wai., 1884; Bull. U. S. Geol. Survey, No. 10, p. 35. Type, 



Dikelocephalus? iowensis Owen. (See Lonchocephalus.) 

 CRYPHJSUS Green, 1837; Am. Jour. Sci., 1st series, vol. 32, p. 343. 



Dalmanites (Cryphceu.s) BARRISI Hall, 1888; Pal. New York, vol. 7, p. 



48, pi. 16 a, fig. 18. Near New Buffalo, Searstown and Iowa City, 



Iowa. Hamilton. 

 BOOTHI Green, 1837; Am. Jour. Sci., 1st series, vol. 32, p. 343, tig. 



Huntington, Penn. Hamiltoii. 



