580 WARREN S. SMITH 



from the Laramie of Montana, now conceded to be Fort Union 

 in age. 



Genus Sapindus 



Sapindus obtusifolius (Lesq.) (Fig. 8C) 



Lesquereux: Hayden Surv., VII (1873), 266; PL XLIX, Figs. 8-11; VIII, 235; 



PL XLVIII, Figs. 5-7. 

 Knowlton: U.S.G.S. Bull. No. 204, p. 79. 



The form is represented by numerous fragments such as are 

 shown in Fig. 8, C. Better specimens (not figured) show the typical, 

 unequal base and the alternately stronger and weaker secondaries. 

 Similar forms are described by Knowlton from the Fort Union of 

 Montana and North Dakota. 



The writer wishes to express her indebtedness to Dr. Arthur 

 Hollick of the New York Botanical Gardens for valuable help and 

 suggestions. 



REPORT ON THE FAUNA OF THE MALONEY SERIES 



Rafinesquina (Hall) deltoidea (Conrad) (Fig. 11, A, B, C, D), Leptaena del- 

 toidea Conrad, Am. Geol. Rept., 1838, p. 115. 



Strophomena deltoidea Davidson, Foss. Brachiopoda, III (1864-71); PL XLII, 

 Figs. 1-5; PL XXXIX, Fig. 22. 



Streptorhyncus (Strophonella) deltoidea (Hall, 1883), Sec. An. Rept. State Geol. 

 of New York, PL XLII, Figs. 1-7. 



Rafinesquina deltoidea Hall, Pal. New York, VII; Part. I, p. 281; PL IXa, 

 Figs. 1-5. (Same figures as in references above.) 



The Cascade specimens are referred with slight hesitation to 

 Rafinesquina deltoidea, notwithstanding the fragmentary nature of 

 the material. There is a strong resemblance to Plectambonites 

 (Leptaena) sericius (Sow.) var. rhombica, as figured in Davidson's 

 Fossil Brachiopoda, V, 169; PI. XII, Figs. 4-7. However, the 

 remains of the muscle scars, and more especially the concentric 

 wrinkles, stronger near the hinge line, are characteristic of Rafines- 

 quina. The alternate striation, such as the Cascade specimens 

 show, is described in both forms, "every fifth or seventh striation 

 markedly stronger." Here generally every fifth striation, though 

 rarely every seventh, and occasionally every second, is emphasized. 

 Such a variation, and another in the profile of the shell, is noted 



