384 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 5/ 



SAUKIA STOSEI, new species 

 Plate 6g, figs. 3-5 ; pi. 70, figs. 12, 12a 



Dikeloccphahts hariti Stose (on authority of Walcott), 1909, U. S. Geol. 



Survey Geol. Atlas, U. S., Folio No. 170, p. 6. (Name mentioned in 



list of fossils from .Conococheague limestone.) 

 Dikeloccphalus sp. imdt. Stose (on authority of Walcott), 1909, idem, p. 6. 



(Mentioned with preceding species.) 



This species belongs to the S. pepinensis form of Saukia, and is 

 most nearly related to Saukia fallax (pi. 67, figs. 21, 21a), but it has 

 a proportionately larger palpebral lobe. The associated pygidium 

 (fig. 5, pi. 69) differs from the pygidium found with S. fallax in 

 Texas in having a longer axial lobe, and the surface is strongly granu- 

 lated instead of being smooth as in 5". fallax. 



The specific name is given in recognition of the fine work of Mr. 

 George W. Stose, of the United States Geological Survey. 



Formation and locality. — Lower Ozarkian (Ulrich) : (5911 and 

 59 o) Conocheague limestone, about 800 feet (240 m.) above the base, 

 that is, near the middle, of the formation in a quarry on point of spur 

 northwest of Scotland Station, Franklin County, Pennsylvania (E. O. 

 Ulrich ; G. W. Stose, 1901). U. S. Geol. Survey Atlas, folio No. 170. 



SAUKIA WARDI, new species 

 Plate 69, figs. I, 2 



This species is represented by nuinerous casts of compressed, 

 broken specimens that occur in a yellowish-colored shaly rock. The 

 cranidium has the general character of that of S. leucosia (pi. 67, figs. 

 14, 16) and vS". pepinensis (pi. 67, figs, i, 4, 5), but it differs in being 

 proportionately shorter. The frontal limb was gently rounded as in 

 S. leucosia and not flattened as in 5". pepinensis. 



The free cheeks are rather broad. Thoracic segments of the type 

 of those of Saukia ludcnsis, and the pygidium of the two species is 

 somewhat similar except that of .S. zvardi is longer in proportion to its 

 width. In this respect it has the outline of the pygidium of 6". pepin- 

 ensis, but not the narrow border of the latter. Surface not preserved. 



The type specimens are in the Peabody Museum, Yale University, 

 New Haven, Connecticut, and plastotypes in the U. S. National 

 Museum, Nos. 58671 and 58672. 



The species is named after Dr. Freeman Ward of Yale University, 

 and I am indebted to Dr. Charles Schuchert for the opportunity to 

 study and name the species. 



