





"i :*^l>r;>f\/5^:• 



Fig. 6 4^ V ^ a 





Fig. 7 



le^'? 



Figure 5A. — Spawned out, November. X430. 



Figure 5B. — Spawned out, with some sperm retained, November. X430. 



Figure 6. — Winter clam with sperm-balls, January. X970. 



Figure 7. — Early spermatogenesis of second cycle, January. X430. 



Figure 8. — Partially ripe clam. Notice the Inclusions between sperm and alveolar wall, April. X430. 



MS #1453 



G P 887-0) 2 



