BRAGHIOPODA. 133 



Genus Crauiella Oehlert 



Craniella cf. hamiltoniae (Hall) 

 Plate 35, figure 5 



1860. Crania hamiltonia Hall, Thirteenth Rep. New York State Cab. Nat. Hist., 



p. 77, figs. 4 and 5, on p. 76. 

 1867. Crania hamiltoniae Hall, Pal. New York, IV, pp. 27-28, pi. 3, figs. 17-23. 

 1892. Craniella Hamiltoniae Hall and Clarke, Pal. New York, VIII, pt. 1, pp. 148 



153, pi. 4, figs. 3-16. 

 1897. Craniella hamiltoniae Schuchert, Bull. U. S. Geol. Surv., 87, p. 193. 

 1901. Craniella hamiltoniae Kindle, Indiana Dept. Geol. Nat. Res., 25th Ann. Rept., 



pp. 582-583, pi. 3, fig. 5. 

 1909. Craniella hamiltoniae Grabau and Shimer, North American Index Fossils, I, 



p. 208, fig. 244. 

 1911. Craniella hamiltoniae Cleland, Wisconsin Geol. Nat. Hist. Surv., Bull. 21, pp. 



86-87, pi. 12, figs. 7 and 8. ■ 

 1913. Craniella hamiltoniae Prosser and Kindle, Maryland Geol. Surv., Middle and 



Upper Devonia, pp. 131-132, pi. 9, figs. 1-7. 

 1913. Craniella hamiltoniae Clarke and Swartz, Maryland Geol. Surv., Middle and 



Upper Devonian, pp. 549-550, pi. 47, figs. 11-13. 

 Hall's description — "Shell broadly oval or subcircular. Dorsal valve subconical; 

 apex subcentral or excentric, pointed in well-preserved specimens, often worn or de- 

 corticated. Exterior surface of dorsal valve marked by concentric lamellose striae. 

 Ventral or lower valve marked by four strong impressions of the adductor muscles, which 

 are variable in form; the posterior ones are distant; the anterior ones approximate, di- 

 verging above and assuming a somewhat cordiform appearance, the pit for the protractor 

 muscles occupying the space between. Vascular impressions strongly digitate." 



Remarks — The identification is based on one imperfect specimen and is highly un- 

 certain. Figure 5 of plate 35 shows all that the specimen shows. 



Occurrence — Grand Tower limestone, Little Saline Creek, Ste. Genevieve County. 



Genus Pholidops Hall 



Pholidops cf. oblata Hall 



Plate 35, figure 9 



1867. Pholidops oblata Hall, Pal. New York, IV, p. 414, pi. 3, fig. 10. 

 1897. Pholidops oblata Schuchert, Bull. U. S. Geol. Surv. 87, p. 307. 



Hall's description — "Shell suborbicular, somewhat flattened on the upper margin, 

 discoid or depressed convex; the length and width about equal; muscular area of the 

 interior small, circular, and divided through the middle by a longitudinal septum. 

 External surface unknown." 



Remarks — Only two specimens are in the collections of Walker Museum. The 

 identification is made on the basis of general shape and the shape of the muscular area. 

 One of the specimens shows part of the exterior part of the shell which is made up of 

 concentric rings, but it may not belong to the same species as the internal mould. 



Occurrence — Sandstone phase of the St. Laurent, 1J^ miles west of Lithium, Perry 

 County. 



