EXPLANATION OF PLATE XIL 



Spikifkra urbana. Pagk 166. 



Hg. 1. Dorsal view ot type sjieiimcn. 

 Fig. 2. Profile of same specimen. 



SlMRIFKRA MAt BRIDKI. PaGK. 166. 



Fig. 3. Profile of average indi\idual of this species. 

 Fig. 3rt. Cardinal view. 

 Fig 3/'. Dorsal view. 



PeNTA.MKRI'S OECL .S.SATIS. PACiK 164. 



Fig. 2. Profile view of ventral \alve of an elongate narrow individual 



