SABELLIDES AND SERPULIDES 26l 



TABLE II. 



BASED ON FORM OF SUPERIOR COLLAR SET-iB. 



A. Setae having a long tapered blade preceded by a fin-like expansion. 



Spirorbis Daudin 1800. 



a. Serrations on the blade fine, usually much finer than on the fin. 



Spirorbis Daudin 1800 6t. 8. 

 Tube sinistral. 



Spirorbis Spirorbis Linne* (iS). 1 Spirorbis patagonicus C. & M. (13). 



granulatus Linnrf. lebruni C. & M. (14). 



sulcatus Adams. koehleri C. & M. (22). 



quadrangularis Stimpson. bernardi C. & M. (23). 



stimpsoni Verrill. lineatus sp. nov. 



aggregates C. & M. (10). similis sp. nov. 



claparedeiC. & M. (n). tubceformis sp. nov. 

 malardiC. & M. (12). 



b. Serrations on the blade coarse, similar on fin. 



Pileolaria Claparede 1870. 

 Tube sinistral. 



Spirorbis cornuarietis (Philippi) (20). Spirorbis beneti Marion (21). 

 militaris Claparede (24). langerhansi C. & M. (26). 



morchi Levinsen (27). mutabilis Bush. 



levinseni C. & M. (15). variabilis sp. nov. 



mediterraneus C. & M. (19). 



Tube dextral. 



Spirorbis cancellatus Fabr. (i). Spirorbis semidentatus sp. nov. 



vitreus Fabr. (2). eximius sp. nov. (direction?). 



marioni C. & M. (6). incongruus sp. nov. 



B. Setae having the blade of two forms : with and without a shallow posterior 



notch. Janua Saint-Joseph -f- Mera Saint-Joseph 1894. 



Tube sinistral. 

 Spirorbis verruca Fabr. non Levinsen. Spirorbis evolutus sp. nov. 



Tube dextral. 

 Spirorbis pagenstecheri Quatr. (8). Spirorbis pusilloides nom. nov. (9). 



C. Setae having the blade distinctly angnlated at base. 



Circeis Saint-Joseph 1894. 

 Tube dextral. 



Spirorbis spirillum Linne* (4). Spirorbis armoricanus Saint-Joseph (5). 



violaceus Levinsen (3). 



D. Sets having the blade broadly rounded at base. 



Leodora Saint-Joseph 1894. 



Tube sinistral. 

 Spirorbis Icevis Quatrefages. 



Tube dextral. 



Spirorbis pseudocorrugatus nom. Spirorbis rugatus sp. nov. 



nov. (7). comptus sp. nov. 



1 See p. 258. 



