538 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



24534. Productus costatus Sowerby? Plesiotypes. 



Upper Carboniferous. Nebraska City, Nebraska. 



Meek, Final Rept. U. S. Geol. Surv. Nebr. (Hayden), 1872, p. 

 159, pi. 6, figs. 6a, 6b. 



15143. Productus costatus Sowerby ? var. Plesiotypes. 



Upper Carboniferous. White Pine District, Nevada. 



Meek, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. I, 1S77, p. 69, 

 pi. 7, figs. 4-4b. 



13824. Productus dissimilis Hall ? Plesiotypes. 



Base of Upper Devonian. Clear Water River, Mackenzie 

 River Basin, Canada. 



Meek, Trans. Chicago Acad. Sci., I, 1868, p. 91, pi. 13, figs. 3a-c. 



= Productella hallana. 



142 16. Productus elegans Norwood and Pratten. Plesiotypes. 



Lower Carboniferous. North of Snowstorm Hill, Dry 

 Canyon, Oquirrh Mountains, Utah. 



Hall and Whitfield, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. 

 II, 1877, p. 268, pi. 5, figs. 3, 4. 



[Does not appear to be like the specimens from the Kaskaskia of 

 the Mississippi Valley.] 



14217. Productus flemingi burlingtonensis Hall. Plesiotypes. 



Lower Carboniferous. North of Snowstorm Hill, Dry 

 Canyon, Oquirrh Mountains, Utah. 



Hall and Whitfield, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. 

 II, 1S77, P- 265, pi. 5, figs. 9-12. 



= Productus burlingtonensis. 



3633. Productus fragilis Dana. Cotypes. 



Carboniferous. Wollongong Point, Illawarra, New South 

 Wales. Australia. 



Dana, Wilkes U. S. Expl. Exped., X, 1849, P- 686 ; Atlas, pi. 

 2, figs. 7— 7<i. 



35168. Productus gallatinensis Girt}'. Cotypes. 



35169. Madison (Miss.). Crowfoot Ridge, Gallatin Range, and 



divide between Gallatin River and Panther Creek, 

 Yellowstone National Park. 



Girty, Mon. XXXII, Pt. II, U. S. Geol. Surv., 1899, p. 533, pi. 

 68, figs. 11a, 11b, lie, 1 id, 7a, 7b, 7c . 



35346 Productus gallatinensis Girty. Plesiotypes. 



to Hermosa ( Upper Carb.). Near Cascade Creek, Engineer 



35348. Mountain quadrangle; Bear Creek, Durango quad- 



rangle, and San Juan Region, Colorado. 



Girty, Prof. Pap. No. 16, U. S. Geol. Surv., 1903, p. 361, pi. 3, 

 figs. 4. 5, 6, 7, 8. 



8040. Productus giganteus (Martin). Plesiotypes. 



Lower Carboniferous. McCloud River, Shasta County, 

 California. 



White, Twelfth Ann. Rept. U. S. Geol. Surv. Terr., Pt. I, 1883, 

 p. 132, pi. 36, figs, ia-ic. 



