1 66 BULI.ETIN 31 166 



it is evident that the pallial sinus is very deep and confluent 

 with the line below. 



Between the concentric striae there is often a faint trace of 

 fine radiating threads. In general outline this species is some- 

 what like spillmani Dall {albaria Con, ) , but that is a smoother, 

 thinner, less pointed shell posteriorly. This may have had cyno- 

 glossa Dall as a remote ancestor. 



Types. — Paleont. Mus. Cornell Univ. 



Horizon. — St. Maurice Eocene. 



Specimens figured. — Paleont. Mus. Cornell Univ. 



Locality. — W. H. Berryman's place, 11 miles from Rusk and 

 2.5 from Linwood, Cherokee Co., Tex. Collected by A. C. 

 Veatch . 



Macoma scandula Conrad, PI. 50, Figs. 17, 18 



T. scandula Con., Jr. Acad. Nat. Sci., Phila., vol. 7, 1834, p. 132. 

 T. scandula Con., Amer. Jour. Sci., vol. i, 1846, p. 400, pi. 4, fig. 8. 

 Macoma scandula Dall, Trans. Wag., Ill, 1900, p. 1016. 



Conrad'' s best description (Amer. Jour. Sci.) — Ovate, much com- 

 pressed ; anterior margin rounded ; ligament margin very oblique, 

 slightly curved ; fold near the posterior margin, angulated, subcarinated ; 

 basal margin rounded ; beaks scarcely prominent above the hinge line, sub- 

 medial, nearest the anterior end. Claiborne, Alabama. 



I only found one valve, a right one, and this is imperfect ; the cardi- 

 nal plate is broad and thick, with two diverging compressed teeth, and no 

 lateral teeth. The substance of the shell is moderately thick. 



We have reproduced Conrad's restoration of this species to- 

 gether with a sketch of our own taken from the type specimen in 

 the Academy' s collection. 



We naturally presume that Conrad's specimen came from 

 the ' 'Sand Bed' ' , but it may have come from the St, Maurice be- 

 low. We have found nothing similar in our collections from 

 this locality. That there are many Tellinoid forms in the St- 

 Maurice beds, especially in the so-called Buhrstone, is shown by 

 numerous imprints as at Ft. Gaines and Hamilton Bluff. Some 

 forms from these localities are shown on Pis. 49, 50. Itis difiicult 

 however, to identify these casts and impressions specifically. 



