NEBILLA ANTENNATA. 147 



interpolated between the Exogonea and Syllidea. Nerilla may be left at present in an 

 uncertain position. 



Syllids especially abound in the Mediterranean and at Madeira (Langerhans), and 

 they range from tide-marks to 1380 fathoms (Ehlers, Syllis abyssicola). 



Genus XLIV. — Nerilla, 0. Schmidt, 1848 (provisionally). 



This form (figs. 50, 51, and 52), as Malaquin truly states, is at present in an 

 uncertain position, though most authors place it in relation with the Syllidse. 

 De Quatrefages gave it a new title, viz. Dujardinia, and inserted it between Microsyllis, 



Fig. 50. — Nerilla antennata, Scnm. (after Claparede), from the ventral aspect. (Enlarged.) 



Schmardia, and the Amytidea. A brief notice of it is, perhaps, necessary, as it has been 

 found in the British area. Its structure and reproduction need careful re-examination. 

 It has been thought unnecessary to constitute a family for it, as some have done, in the 

 present condition of information on the subject. No example has been seen by the author. 



1. Nerilla antennata, 0. Schmidt, 1848. 



Synonyms. 



1848. Nerilla antennata, 0. Schmidt. Reise nach der Fiiror, Neue Beitrag., Nat. Wiirmer, p. 38, 



Taf . Ill, f . 8 and, 8 a, fide ant. 

 1851. „ „ Grube. Fam. Annel., p. 62. 



