PLATE 11 



EXPLANATION OF FIGl'RES 



IN Man, 3(3 mm. H. E. C, transverse series, no. 2050. X 40. 



19 ^[an, 36 mm. H. E. C, transverse series, no. 2050. X 40. 



20 Alan, 36 mm. H. E. C, transverse series, no. 2050. X 40. 



21 Man, 44.3 mm. H. E. C, transverse series, no. 1611. X 40. 



124 



