Plate IX. 



Fig. 



51. Mulv ui Siilnilif'liiliis ( ?) bispiKf, ivom [he (.hni,um. x 100 diam. 



5:;. Another example partly in piolile. The t^enital seyment and the eaudal 

 region, however, are seen from the dorsnin. X As l3ef(jre. 



^^. Anterior region of the carapace of a male with the antennules and anlenn:f, 

 the two powerful hooks of the latter lieini; conspicuous. X Zeiss oc. 2. 

 Olij. D. 



54. Spermatophore when lust extruded. X loo diam. 



55. Spermatophore as detached from the region of the vulva with its elastic cap- 



sule more or less contracted. X 100 diam. 



56. An ovigerous female SabcUipliihts { .^ ) bispii a-. Magnified to the same scale 



as the males. 



