Spermatogenesis in spiders. 



575 



All following figures are taken from Ammirohhis sylvestris. 2500 : 1, 

 except 73. 



Fig. 73. Showing accessory chromosome with ctetosomes. Very much 

 enlarged. 



Fig. 74. First division showing accessory chromosome end plano- 

 somes. 



Fig. 75. Telophase of first division. 



Fig. 76. Same as above. 



Fig. 77. Same as above. 



Fig. 78. Equatorial view of first division. 



Fig. 79. Second division showing accessory chromosomes. 



Fig. 80. Same showing ctetosomes dividing early. 



Fig. 81. Telophase of second division. 



Fig. 82. Equatorial view of second division spindle. 



Fig. 83. Same as above. 



Fig. 84. Spermatid. 



Plate 33. 



Figs. 85 to 101 have been made from members of five families. 

 2500: 1. 



Fig. 85. First division of Spermaphora meridionalis. 



Fig. 86. "Rest stage" in Callilapis imhecilla. 



Fig. 87. First division in Callilepis imhecilla. 



Fig. 88. Equatorial view of same. 



Fig. 89. Same as above. 



Fig. 90. Telophase of first division, showing planosomes. 



Fig. 91. Late diplotene stage in Epeira sericata. 



Fig. 92. First division of Epeira sericata. 



Fig. 93. "Rest period" of X/jsticus triguttatiis. 



Fig. 94. First division of Xijsticus triguttatiis. 



Fig. 95. Equatorial view of same. 



Fig. 96. Equatorial view of second division in Xysticus triguttatus. 



Fig. 97. Telophase of second divison in Xysticiis triguttatus. 



Fig. 98. First division of Anaphaena saltabunda. 



Fig. 99. Equatorial view of same. 



Fig. 100. Equatorial view of second division in Anyphaena salta- 

 bundcL 



Fig. 101. Telophase of same. 



38=' 



