8G C. L. WALTON. 



Total length, 48 mm. Length of body, 111 mm.; breadth, 16 mm. 



Length of ytalk, 2b mm. ; breadth, just below body, 5 mm. ; lower 

 portion, 3 mm. 



I'edal disc irregular in outline, breadth, 15 mm. (on the average); 

 thickness, o mm. On the body were remains of a slight coating of 

 mucus and sand grains, and a thick coating of mud adhered to the 

 pedal disc. The ectoderm was much decayed, but remains of what 

 appear to have been suckers could be made out. 



The body was considerably wrinkled. Stem bare and smooth. 

 The upper surface of the pedal disc and base of stem showed numerous 

 line lines. There was a considerable tumid excrescence on the lower 

 portion of the body, much decayed, and probably due to injury received 

 in the dredge. Neither the oral disc nor tentacles were visible. 



S'/iccinicn (h). — Total length, 32 mm. Body wrinkled and thickly 

 coated with sand at the summit. Pedal disc irregular in outline, 

 much smaller than in (a) ; under surface bare and much ridged and 

 ftdded. This individual was only partially contracted, and showed 

 the tentacles and portions of the oral disc. Oral disc strongly ridged, 

 but owing to decay the number and details could not Ije made out ; 

 mouth also not visible for the same reason. 



Tentacles (partially contracted) short, stout, and obtuse, in 3 or 

 4 series, about 90 in number ; but they were difficult to enumerate, 

 and in several places a number had been injured or destroyed. 



Colours. — Mr. Borley informed me that when alive the body was 

 yellowish white, longitudinally striped with dull red. Tentacles, dull 

 red(?). Nothing remained when examined but a dull uniform pinkish 

 shade. Horizontal and vertical section with a razor disclosed a state 

 of decay, amidst which little could be recognized ; I can only say that 

 no siphonoglyph could be found in either ((/) or {h), and that the 

 mesenteries in (a) were about 24 pairs fully developed, and a similar 

 number incomplete. 



The general appearance of both specimens is very similar to 

 Danielssen's figures and description of IC j^cdunciilata, as also are the 

 measurements ; the features that cause me to consider these examples 

 as a separate species being the marked dih'erence in the number of 

 mesenteries and tentacles. 1 here repeat the generic characteristics 

 as given by Danielssen, so altered as to include the present species : — 



The body encrusted, piriform, with a long bare stem, terminating in 

 a pedal disc. Tentacles few or many, in two or more series, retractile. 

 12 or more pairs of mesenteries, half of their number perfect. 



Suckers on the encrusted portion of the body. No siphonoglyph. 



Mesodermal, annular muscles. Acontia. 



