ANNELIDA. 131 



ANNELIDA. 



(See ante, p. 28.) 



SERPULA LOPHIODA, Goldfuss. 

 (Plate vn. fig. 5, a, b.) 



Serjmla lophioda, Goldfuss, Petrifacta Germanics, I., p. 236, 



pi. 70, fig. 2. 



A fine specimen, five inches long, in the University col- 

 lection. 



Locality. Upware. 



N. Europe. Essen, Shoppenstedt. 



SERPULA RUSTICA, Sowerby. 



(Plate vii. fig. 6, a, b.} 

 Serpula rustica, Sby., Min. Con., pi. 599, f. 3. 



An obtusely quadrangular tube, commonly bent into a loop in 

 the Upware specimen, the looped portion being attached, but the 

 rest of the tube remaining free and straight. Serpula quadrangularis 

 (Roemer) is its representative in the German Neocomian (Hils 

 formation). 



Localities. Upware, Brickhill, Godalming (in Lower Green- 

 sand), Folkestone (Upper Greensand). 



SERPULA ARTICULATA, Sowerby. 

 (Plate vn. fig. 7.) 



Serpula articulata, Sby., Min. Con., vol. VI., p. 204, pi. 599, 

 f. 4. 



A worm-tube of the vertebralis (Oxford clay) type. The aper- 

 ture expands periodically, trumpet fashion, and the successive 

 enlargements produce the articulated appearance of the test. This 

 is a rougher, more irregular worm-tube than S. vertebralis, with 

 unequal intervals between the quadrangular nodulose varices, but 

 such differences may be produced simply by difference of habitat. 

 Our Serpula rustica from Upware sometimes exhibits very similar 

 structure. 



Localities. Upware, Brickhill, Godalming. 

 N. Europe. Berklingen (Hils Conglomerate). 



92 



