PLATE X. 



FIGS. 29-39. Spermatids. 

 FIGS. 40, 41, 46, 47. Spermatozoa. 

 FIGS. 42-45. Spermatids of Epeira sclopetaria. 

 FIG. 48. Spermatozoon of Agalena, nach Wagner. 

 FIG. 49. Normal spermatozoa and degenerating cells. Agalena. 

 FIG. 50. Normal spermatozoa and degenerating cells. P/iotctis. 

 FIG. 51. Spermatozoa of Pholctis phalangiodes. 



ABBREVIATIONS. 



a.c., accessory chromosomes; sp. , spermatozoon; d.c., degenerating cells; /. 

 tail of spermatozoon, nach Wagner ; v, vesicle. 



188 



