76 BULLETIN 2, UNITED STATES NATIONAL MUSEUM. 



ASAPHUS Continued. 



Oyptonymus Eichwald, Obs. geog.-zool., etc., de Tril. (not 1840), 1825, p. 44; 

 Zool. Specialis, pt. 2, Vilnae, 1830, p. 114. Goldfuss, Neues Jahrb. f. Min., 

 etc., 1843, pp. 541, 554. Salter, Mon. Brit. Tril., Pal. Soc., 1866, p. 147, 160. 

 Vogdes, Mon. Genera Zethus, Cybeleand Cryptonymus, 1878, p. 15. Zittel, 

 Handb. Pal., 2, Munich, 1885, p. 609. 



Hemicrypturus Green, Mon. Tril. N. A. 1832, p. 20. Burmeister, Org. der Tril., 

 Berlin, 1843, p. 124; Org. Tril., 1846, p. 107. Hawle and Corda, Abh. d. k. 

 bohmischen Gesell. d. Wiss., 5, 1847, p. 69, pi. 4, fig. 37. 

 Observation. Few of the above references apply to Asaphus a. s., but all are 



included here for future research upon this and allied genera. 



ASAPHUS ALACER Billings. See Brachyaspis alacer. 

 ASAPHUS ALPHA Raymond. See Basilicus marginalia. 



Asaphus? astragolotes Green. 



Asaphus astragolotes Green Supp. 1, Mon. Trilobites N. A., 1835, p. 11. 

 Ordovician: Grenville Canal, Canada. 

 Pla8totype.Ga,t. No. 25698, U.S.N.M. 



ASAPHUS BARRANDI Hall. See Ptychopyge barrandi. 



ASAPHUS BETA Raymond. See Isotelus beta. 



ASAPHUS BOLIVIENSIS D'Orbigny. See Megalaspis? boliviensis. 



ASAPHUS CANADENSIS Chapman. See Ogygites canadensis. 



ASAPHUS CANALIS Whitfield. See Isoteloides whitfieldi. 



ASAPHUS CANALIS Hall. See Isotelus canalis. 



ASAPHUS CANALIS Cleland. See Asaphellus gyracanthus. 



Asaphus(?) caribouensis Walcott. 



Asaphus Caribouensis Walcott, Mon. U. S. Geol. Surv., 8, 1884, p. 98, pi. 12, 



figs. 7, 7a, b. 



Upper Pogonip: Ridge east of Hamburg Ridge, Eureka District, Nevada. 

 Cotype.C&t. No. 24652, U.S.N.M. 



ASAPHUS CAUDATUS Green. See Dalmanites limulurus. 

 ASAPHUS CONVEXUS Cleland. See Symphysunis convexus. 

 ASAPHUS CORDIERI Castelnau. See Dalmanites, limulurus. 

 ASAPHUS CORYCCEUS Conrad. See Proetus corycoeus. 



Asaphus? crypturus Green. 



Asaphus crypturus Green, Suppl. Mon. Trilobites North Amer., 1835, p. 18. 

 Silurian: Moose River, Nova Scotia. 

 Plastotype.Czt. No. 4835, U.S.N.M. 



Asaphus(?) curiosus Billings. 



Asaphus? Curiosus Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 318, fig. 305. 

 Asaphus? curiosa Walcott, Mon. IT. S. Geol. Surv., 8, 1884, p. 98, pi. 12, fig. 15. 

 Canadian: Stanbridge, Quebec (Beekmantowu) ; Eureka District, Nevada 



(Pogonip). 

 Plesiotype.V&t. No. 24651, U.S.N.M. 



