Gatlij Marine Lahoratory, St. Andrews. 31 



intense being inferior and whieli is toned down to the -white 

 collar. Two white belts separate the three brown bands and 

 various white touches enliven the beautiful fan. Daly ell's 

 specimens were variegated with different shndes of brown and 

 yellow, and he mentions one with snow-white plumes located 

 inside an old oyster-shell. 



The bodj/ is moderately elongated, but in contraction almost 

 elliptical, and attains a length of | to 2 inches, and has fifty- 

 eight well-marked segments, of which 5-7 are anterior. It 

 is rounded on the dorsal surface and devoid of any anterior 

 groove, slightly flattened ventrally, and with a median groove 

 i'rom the posterior border of the ninth bristled segment to 

 the tail, Avhere the terminal anus has two slight lateral 

 jjapillse. The ventral surface from the colbir backward has 

 in each segment a glandular scute. These occupy the 

 middle of the anterior region. The long rows of hooks 

 occur at the sides^ and they continue of similar breadth to 

 the posterior end. After the ninth they are split in the 

 mid-ventral line of the groove, and in some a faint line runs 

 from the collar along the middle of the anterior segments. 

 'J'he body is of a madder-brown or dull red colour in some, 

 with white specks both dorsaily and ventrally (orpiment- 

 orange, Da/i/ell). In others it is dull oiange with onlv a 

 few whitish grains on the collar, or of a light orange hue — 

 rendered dark here and there by the intestine, whilst the 

 lobes of the collar are speckled with minute dots of white, 

 and two white papillte occur at the anus, or a white patch in 

 f I'ont of it. Young examples between tide-marks in Guernsey 

 and Herm are yellowish green, with the dark specks at each 

 foot. A bold dark brown speck occurs at the ventral edge 

 of each setigerous process in the anterior region, the 

 nncinigerous ridge commencing behind it. At the ninth 

 bristled segment a smaller speck is situated rather behind 

 the setigerous process dorsaily, and at the commencement 

 of the nncinigerous row, and so to the posterior end of the 

 annelid. In one from jNIalahide the collar had many minute 

 brown specks. The alimentary canal commences at the 

 mouth as a wide, though translucent, membranous tube 

 marked by transverse strise. About the middle of the body 

 it becomes narrower and thicker wich poweiful and rather 

 ctr.irse transverse fibres and some delicate longitudinal 

 muscles. The dissepiments support the canal in every seg- 

 ment, and thus it assumes a moniliform aspect, or occasionally 

 resembles a coiled spring. 



The first setigerous processes are nearer each other than 

 the succeeding, since the line of the bristles anteriorly 



