12 The Pleistocene Deposits of Sankoty 



*VENERICARDIA (CYCLOCARDIA) BOREALIS Conrad. (Cardita 

 borealis, Desor and Cabot, 1849, p. 342). 



Specimens of this shell are very common in the upper shell bed 

 No. 3. 



*VENERICARDIA (CYCLOCARDIA) NOVANGLIAE Morse. (Cyclocar- 

 dia novangliae , Verrill, 1875, p. 374). 



Found sparingly in the upper two beds, Nos. 3 and 4. 



SERRIPES LAPEROUSII Desh. (Wilson, 1905, p. 989). 

 Found by Wilson. The first record for the species east of Point 

 Barrow. 



* VENUS MERCENARY Linn. (Desor and Cabot, 1849, p. 342). 

 Plate III, figure 1. 



Shells of this species are very abundant in the lower shell bed 

 No. 1, and a few are found in beds 2 and 3. Some of the shells 

 have the characteristic purple of the interior very well preserved. 

 Many of the shells are bored by Cliona sulphured. To the heavy 

 thick forms of this species from the lower shell bed, Verrill has 

 given the varietal name, antiqua. 



GEMMA GEMMA Totten. (Tottenia gemnia, Verrill, 1875, 

 p. 372). 



A few shells of this species were found by Verrill in material 

 from the lower shell bed. 



*PETRICOLA PHOLADIFORMIS Linn. (Verrill, 1875, p. 371). 

 Found occasionally in the lower shell bed. 



TELLINA ( ANGULUS) TENERA Say. (Angulus tener Verrill, 1875, 

 p. 371). 



Several specimens of this species were found by Verrill in ma- 

 terial taken from the lower shell bed, No. 1. 



MACOMA BALTHICA Linn. (Macoma fragilis, var. fusca, Verrill, 

 1875, p. 374). 



Specimens of this species are occasionally found in the upper 

 shell bed, No. 4. 



MACOMA INCONGRUA V. Martens. (Wilson, 1905, p. 989). 

 Found by Wilson. The first record for the species east of Point 

 Barrow. It is very close to the preceding species. 



