i 4 4 SHELVE DISTRICT 



Table 105 



Statistics of length (1) and maximum width (w) of 37 brachial valves of Rafinesquina delicata 



sp. nov. 



1 mm (var 1) 6-92 (17715) 



w mm (var w) 875 (25-535) 



r 0-994 



logel (var logel) 17778 (0-3143) 



log e w (var log e w) 2-0247 (0-2880) 



r e 0-996 



a (var a) 0-9572 (0-00022) 



Table 106 



Statistics of length (1) and maximum anterior extension of socket ridges (lc) in 18 brachial valves 



of Rafinesquina delicata sp. nov. 



1 mm (var 1) 10-64 ( IO '557) 



lc mm (var lc) 0-98 (0-15) 



r 0-937 



a (var a) 0-095 (0-00006) 



Table 107 



Statistics of maximum anterior (1) and maximum lateral (w) extensions of socket ridges in 10 

 brachial valves of Rafinesquina delicata sp. nov. 



1 mm (var 1) o-86 (0-198) 



w mm (var w) 2-61 (0-934) 



r 0-928 



logel (var logel ) -0-2694 (°' 2 374) 



log e w (var log e w) 0-8951 (0-1283) 



r e 0-937 



a (var a) 0-7352 (0-00819) 



Table 108 



Statistics of length (1) and length of dental plates (dl) in 45 pedicle valves of Rafinesquina delicata 



sp. nov. 



1 mm (var 1) 11-16(16-566) 



dl mm (var dl) 1-03 (0-124) 



r 0-864 



a (var a) 0-0867 (0-00004) 



Table 109 



Statistics of length (1) and length of ventral muscle scar (sc) in 25 pedicle valves of Rafinesquina 



delicata sp. nov. 



1 mm (var 1) 12-4 (10-79) 



s"c mm (var sc) 3-51(1-804) 



r 0-916 



logel ( var logel) 2-4839 (0-0677) 



logesc (var log e sc) 1-1867 (0-1366) 



r e 0923 



a (var a) 1-4209 (0-01296) 



