DESCRIPTION OF FOSSILS 511 



other species. The valve opens more than half the entire length. 

 Length 21 millimeters, width 12 millimeters, thickness 7 millimeters. 

 This is one of the least abundant forms, only one or two specimens 

 having been found. 



Glossocarpellites obtusus (Lesquereux), Perkins. 



Carpolithes obtusus* (Lesquereux), Perkins, Vermont Report, 1903-1904, 



page 177. 



Carpolithes brandoniana, var obtusa Lesquereux, American Journal of 

 Science, volume xxxii, page 356. 



Plate 87, figure 16. 



This is more broadly ovate than other species, the length and width 

 being about equal. The surface is smoother than in any others of the 

 genus, and on the side opposite to that figured there are 10 or 12 fine 

 grooves extending longitudinally. The opening is only about a third of 

 the length. The lower portion is quite thick and rounded. Length in 

 average specimens 25-30 millimeters, width 25-28 millimeters, thick- 

 ness at lower end 8-10 millimeters. 



Glossocarpellites elongatus (Lesquereux), Perkins. 



Carpolithes elongatus (Lesquereux), Perkins, Vermont Report, 1903-1904, 



page 176. 



Carpolithes brandoniana var. elongata Lesquereux, American Journal of 

 Science, volume xxxii, page 356. 



Plate 87, figure 17. 



There are very few of the Brandon fossils as large as this species. It 

 is very long ovate, quite sharply mucronate above, obtusely rounded 

 below, valve opening more than half the length, surface quite rough and 

 irregularly furrowed. 



This and the foregoing species are among the most abundant of these 

 fossils. They vary considerably in size. There is a single specimen of 

 this species in the Museum of Comparative Zoology that is 50 millimeters 

 long, but the average specimen is about 35 millimeters long and 20 milli- 

 meters wide. 



Genus Juglans, Linn. 

 Juglans brandonianus, Perkins, Vermont Report, 1903-1904, page 182. 



Plate 87, figure 21. 



This species appears to be a true Juglans. It is one of the larger 

 forms and seems to be well marked. It is somewhat irregularly oval, 



