198 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 



Surface unknown. The largest cranidium has a length of 14 mm. 

 exclusive of the occipital spine. 



Formation and locality. — Upper Cambrian: (98a) Franconia 

 formation ; Marine Mills, Washington County, Minnesota. 



SARATOGIA VOLUX, new species 



Plate 35, figs. 2, 2a 



This species is known only by the cranidium. It is associated 

 with Lonchocephalus chippewaensis Owen, but the nearest related 

 form is Saratogia wisconsensis (Owen). It differs from the latter 

 in having a more conical glabella, shorter frontal limb, proportionally 

 wider frontal border, and shorter median spine on the occipital ring. 

 The palpebral lobes are about one-fourth the length of the cranidium. 



Surface unknown. The largest cranidium has a length of 8 mm. 

 exclusive of the occipital spine. 



Formation and locality. — Upper Cambrian: (78a) Eau Claire 

 formation ; upper quarry on Mount Washington, near Eau Claire, 

 Eau Claire County, Wisconsin. 



SARATOGIA WISCONSENSIS (Owen) 



Plate 34, figs. 5, sa-c 



Crepicephalus ? wisconsensis Owen, 1852, Rept. Geol. Surv. Wis., Iowa, 



Minn., pi. i, fig. 13. (Illustrates a cranidium.) 

 Conocephalites wisconsensis Hall, 1863, Sixteenth Ann. Rept. New York 



State Cab. Nat. Hist., p. 164, pi. 7, figs. 39-41 (42) ; pi. 8, figs. 22-24, 



27, 28; p. 147 {obiter). (Describes and illustrates species.) 

 Conocephalites wisconsensis Shumard, 1863, Trans. Acad. Sci. St. Louis, 



Vol. 2, p. 103. (Comments upon and gives additional information, but 



not as complete as Hall.) 

 Dikelocephalus latifrons Shumard, 1863, Idem, p. loi. (Describes a broken 



cranidium subsequently referred to Conocephalites wisconsensis by 



Hall.) 

 Conocephalites latifrons Hall, 1863, Sixteenth Ann. Rept. New York State 



Cab. Nat. Hist, p. 122 (gen. ref.), p. 165, pi. 7, fig. 40. (Refers species 



to C. wisconsensis, and illustrates type specimen of Shumard.) 

 Conocephalites wisconsensis Hall, 1867, Trans. Albany Inst., Vol. 5, p. 130 



{obiter), p. 151, pi. 2, figs. 39-41; pi. 3, figs. 23-24, 27, 28. (Reprint of 



description and illustrations of 1863.) 

 Anomocare wisconsensis (Hall) Dames, 1883, Richthofen's China, Berlin, 



Vol. 4, p. 15 (gen. ref.). (Refers Hall's Conocephalites wisconsensis, 



1863, pi. 7, fig. 39; pi. 8, figs. 22-24, 27, 28, to Anomocare.) 

 Conocephalites wisconsensis (Owen) Chamberlin, 1883, Geol. Wis., Vol. 



1, p. 131. (Reproduces figures of cranidium and free cheek after 



Hall, 1863.) 



