47 



more elongate in the British, but essentially they are the same. 

 TJnfortunately the injured condition of the teeth in examples 

 procured by the ''Challenger" led to ambiguity as to the rela- 

 tions of the species. 



In the shape of the feet there is little to discriminate between 

 the forms, both having the setigerous lobe with its group of pale 

 spines anteriorly, whilst the slightly curved conical lobe passes 

 backward beneath it. Nor are the differences of the bristles 

 noteworthv. In both some of the bristles are longer, have a 

 marked curve at the commencement of the tapering tip and 

 well-marked wings, but do not show marked serrations, where- 

 as others have shorter tips with broader wings and bold serra- 

 tions, three of which at least have ridges running in from the 

 edge, in the British form this expanded region with the 

 serrations appears to be more differentiated, the wings being 

 narrower beyond it, so that the tip is more slender, but such 

 distinctions are variable. 



The body terminates posteriorly as in the European forms, 

 and regeneration of the tail occurs. In some, a slight tube of 

 mucus with sand-grains surrounds the body. On the whole 

 the forms approach each other very closely, and if even the 

 variations of the European examples are considered, e.g., as 

 shown by Ehlers and by the British specimens, then there is little 

 ground for specific distinction. Thus Ehlers, for instance, 

 figures* the same arrangement of the posterior appendages of 

 the maxillae as seen in the African forms. 



Further, the genus Anicoda of Schmardaf is clearly founded 

 on this species, which he procured not only at the Cape but on 

 the coast of Chili, and therefore lapses, since Grube's title has 

 priority. 



There is little in Schmarda's description of the genus, except 

 that there are no eyes or dorsal cirri, bristles simple, 8 or lo 

 maxillae, of which the inferior alone are calcareous. He 

 noticed the serrated edges of the bristles with wide tips. His 

 specific characters are : — Body^ cylindrical, bluish ; Cephalic 

 lobe longer than the first two segments ; ten superior niaxilhe. 

 Feet conical ; bristles winged, bent towards the tip. He gives 

 a length of 240 mm. and 500 segments. His figures of the 

 dental apparatus (woodcuts, p. 115) are fairly good, and so with 

 that of the serrated bristle. 



Schmarda's coloured figure shows the anterior end trilobed 

 and tinted brown, but such a condition could only have been 

 produced by the partial extrusion of the proboscis — a feature 

 occasionally seen in the present examples. This author 

 followed no strict law in grouping his Annelids, for his second 



* Horslemviinner, II. Plate xvii. tij;-. u). 



f Xeiic Wirix Tliifi'c, I. ii. p. i 15, Tal". \x\ii. ti.c. 2^t,. 



