EXPLANATION OF PLATE 9 



1. Siriella pacifica Holmes 



Fig. la. Anterior part of an adult male, from above. X 20. 



Fig. 16. Left eye of the male, from the outer side. X 22. 



Fig. If. Terminal parts of both rami of fourth right pleopod. X 82 

 en, endopod ; ex, exopod. 



Fig. Id. End of abdomen with left uropod of the male, from above. 

 X 20. 



Fig. le. Distal portion of the telson shown in figure Id, from above. 

 X 67. 



Fig. If. Front end of carapace with eyes of a female, from above. 

 X 22. 



2. Mijsis costata Holmes 

 Fig. 2a. Distal part of left antenna! squama, from below. X 52. 

 Fig. 26. Fifth and sixth abdominal segments of a female, from above. 

 X 22, V, fifth segment ; VI, sixth segment. 



Fig. 2c. Telson of a female, from above. X 34. 



Fig. 2d. Distal portion of the same telson, from above. X 52. 



3. Neomysis franciscorum Holmes 

 Fig. 3a. Anterior part of the type-specimen, from above. X 19%. 

 Fig. 36. Telson of the type-specimen, from above. X 11. 



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