PLATE XXVIII. 



Fig. 0. Nereis zonata, Malmgren. c^ Front pari. 



— 7. Scalibregma iiiflatum Rathke. F^pitokous Гогш. Fronl part. 



— cS. Scalibregma inflatiim Ratlike. Epitokous lorm. Tail оГ the 



same specimen. 



— 9. Scalibregma inflatnm Rathke. Epitokons form. Gill. 



