120 shelve district 



Table 88 



Statistics of length (1) and maximum width of folds (f) in n brachial valves of Bicuspina sub- 

 quadrata sp. nov. (A) and Bicuspina modesta sp. nov. (B) 



A B 



n io 36 



1 mm (var 1) 8-55 (5-660) 6-41 (3757) 



f mm (var f) 379 (2-465) 3-18 (0-747) 



r 0-9537 0-794 



log e l (var log e l) 2-1086 (0-0746) 1-8143 (0-0875) 



logef (var logef) 1-2533 (0-1583) 1-1205 (0-0714) 



r e 0-958 o-8ooo 



a (var a) 1-4567 (0-02400) 0-9033 (0-00886) 



Table 89 



Statistics of length (1) and maximum depth (th) of n pedicle valves of Bicuspina subquadrata 

 sp. nov. (A) and Bicuspina modesta sp. nov. (B) 



A B 



n 13 19 



1 mm (var 1) 9-82 (14-945) 7" 12 (2-352) 



tn mm (var th) 2-46 (1-382) 1-68 (0-335) 



r 0-949 0-807 



a (var a) 0-3042 (0-00083) °"3774 (0-00292) 



Table 90 



Statistics of length (1) and length of dental plates (dl) in n pedicle valves of Bicuspina subquadrata 

 sp. nov. (A) and Bicuspina modesta sp. nov. (B) 



A B 



n 12 32 



1 mm (var 1) 10-47 (i37 I 3) 7-33 (3-207) 



dl mm (var dl) 1-77 (0-858) 1-13 (0-092) 



_£_ 0-925 0-524 



logel (var logel) 2-2903(0-1178) 1-9637(0-0578) 



logedl (var log e dl) 0-4476 (0-2430) 0-0916 (0-0690) 



r e 0-936 0-533 



a (var a) I- 4363 (0-02974) 1-0927 (0-02640) 



Table 91 



Statistics of length (dl) and anterior separation (dw) of dental plates in n pedicle valves of 

 Bicuspina subquadrata sp. nov. (A) and Bicuspina modesta sp. nov. (B) 



A B 



n 12 33 



dl mm (var dl) 1-59 (0-444) I-I 5 (0-076) 



dw mm (var dw) 2-66 (1-284) I- 68 (0-122) 



r 0-905 0-647 



a (var a) 1-7000 (0-05245) 1-2679 (0-03014) 



