380 Prof. Mantosh's Notes from the 



ance ol: the rings, as i£ they were paved with minute red 

 bricks, is a characteristic feature, and was shown by Rathke ; 

 yet they disappear in imperfectly preserved examples, and 

 thus are absent from representations made from these. The 

 body is terminated by a papillose venj, beneath which are 

 four or five cirri, which are unusually long and slender in the 

 small Norwegian specimens dredged by Canon Norman. In 

 life the animal is of a dull brick-red throughout, the tessellated 

 portions being minutely dotted with yellow. The posterior 

 region of the body is often discoloured from the contents of 

 the gut — being dull greyish, and thus throwing the paler lobes 

 of the feet into relief. A slight iridescence occurs on the 

 ventral surface, along which the large ventral blood-vessel 

 passes. The branchiee commence on the first bristled foot 

 and increase in size from the first to the fifth and last. In 

 small specimens from the west coast of Ireland only four 

 branchiae are present, but as the first, even in a large example 

 in life, is very small, such may be due to retraction under 

 the surface. Moreover, certain forms agree in all respects 

 with the typical form, but the branchiaj are entirely absent, 

 and Dr. Ashworth states that he has observed the same 

 condition in a few American examples. It is a question 

 whether these should be regarded as specifically different. 

 The coloured sketch made from life in the Outer Hebrides in 

 1865 represents only four branchise. 



The first bristles occur on the second body-segment, and 

 in this and the following four are borne on conical processes, 

 dorsally and ventral ly, elevated on pads. The bristles are 

 finely iridescent and form slightly radiate tufts. The next 

 nine or ten are similar, but the pads are smaller. About the 

 fifteenth or sixteenth foot a dorsal and a ventral cirrus are 

 evident, and in the posterior region they form somewhat 

 lanceolate lobes with the setigerous process at the inner base 

 of each — that is, below the dorsal and above the ventral. 

 In addition, a series of furcate bristles occur in each foot, but 

 they scarcely project beyond the surface. 



In this family is also Eumenia {Lipohranchus) Jeffrey siiy 

 M'l., as described in 1869, a species dredged off the 

 Hebrides and the Shetland Islands by Dr. Gwyn Jeffreys, 

 and it also extends to Norway and probably to other northern 

 regions. The specific distinction mainly rests on the absence 

 of branchiee, and if these organs may be absent or present in 

 allied forms, such as Scalibregma, a reconsideration of the 

 subject may be necessary. A new form to Britain is Sclera- 



