Arwidsson — On some Irish Maldanidae. 227 



Plate XVIII. 



Caesicirrus tuglectus n .sp. 

 Fig. 



10. Eear end seen from behind ; same individual as preceding figure. 27 : 1. 



11. Detail of the preceding figure. 83: 1. 



12. Eear end with anal opening turned inside out, seen from behind. 27 : 1. 



Nicomache [NicoTno.che) maculata n. sp. 



13. Head, seen from the front. Natural colour. 14 : 1. 



14. Anterior region from the right side. Natural colour. 10:1. 



15. Anterior region as far as the third setigerous segment inclusive, seen from 



the left side. Natural colour. 15 : 1. 



16. Posterior region from the twentieth setigerous segment inclusive, seen 



from the left side; the hindmost segment, which is usually 

 achaetous, here has capillary setae. Glands. 12:1. 



17. Section in front of the first setigerous segment, seen from the right side. 



Glands. Natural colour exclusively. 16 : 1. 



18. Eear end seen from behind. Glands. + indicates the position of the 



ventral nerve-cord. 16 : 1. 



19. Anterior region as far as the eighth setigerous segment inclusive, seen 



from beneath. Glands. 10 : 1. 



