A STRJiA CEA . B I 'NODI D^E. 



THE NECKLET. 

 Hormathia Margaritce. 



Plate VIII. Fig. 1. 



Specific Character. White, with purple tentacles. 



Hormathia Margaritce. Gosse, Annals Nat. Hist. Ser. 3, iii. 47. 



? A ctinia nodosa. Fabeicius, Faun. Grcenl. p. 350 ; No. 341. 



GENERAL DESCRIPTION. 

 Form. 



Base. Very closely adherent to a living Fusus cmtiquus; far exceeding 

 the column, and clasping the shell. 



Column. Skin delicate, much corrugated transversely ; below the margin 

 a horizontal row of large well-defined warts, about ten in number ; summit 

 extremely corrugated, and falling into radiating folds in incipient retracta- 

 tion. A slight but distinct margin. 



Disk. Slightly concave ; outline almost circular. 



Tentacles. Arranged in two or three rows, rather long, sub-equal, but 

 the inner row somewhat longer than the outer; when fully expanded, 

 curving over the margin. 



Mouth. Not raised on a cone, slightly corrugated. 



Colour. 



Column. White. 



Dish White, streaked with very light brown. 

 Tentacles. Dark reddish purple, without any markings. 

 Mouth. Lip slightly yellow. 



Size. 

 Diameter two inches ; height two inches. 



Locality. 

 Moray Firth, near Banff; deep water. 



