8 Frof. M'lutoslj's Notef from fhe 



axis, and tapers to a sliort, slender, filiform tip, which, how- 

 ever, is usually enveloped by the long pinnie or is in screw- 

 like coils. The pinnse have the translnccnt axis, as in 

 6'. penuillus, with long joints, and are riilily ciliated. la 

 life the branchi;B are of a pale green marked with white 

 touches, so that they form a whitish ring around the collar 

 vitiiin which they are attached. The pinme are variegated 

 with pale greenish and white, and show vermiform move- 

 ments when cast oft". In some the branchise are of a pale 

 buti" hue, with a little yellow at the tips of the filaments. 

 ]u contraction they are generally of a dull stone-colour. 

 l.euckart's examples had whitish branchiie with browuisfi 

 touches, and Ue St. Joseph describes l»is examples as 

 vinous-brottn. iSars states that his specimens had yellowish- 

 white branchiae with four or five orange bands. Just above 

 the whitish ring at the base most of the filaments, externally, 

 have two boldly marked and elevated brown or reddish- 

 brown ocular specks, separated by an interval from each 

 other. De St. Joseph states that in his specimens each 

 contained about thirty ovoid *" crystallines " in a mass of 

 brownish pigment, Moreover, the eyes of those from the 

 ^Mediterranean are more numerous than those from the 

 north, whilst Marion considered that tho>e from deep water 

 had fewer eyes than the littoral forms. They are absent in 

 a few of the filaments. The longest filaments are dorsal, 

 those at the ventral edge being considerably shorter and 

 slightly reflexed. 'i'he ocular pigment in some fades in 

 spirit. The tentacle is comparatively short, but its mem- 

 bianous web on each side a])pears to agree with that in 

 >:ubtlla jjcnicdlus. 



Tlie body is comparatively short — about | of an inch in 

 length — and has from GO to 100 segments. It is rounded 

 doisally, slightly Hatteiied ventrally, and marked by a 

 groove which at the tenth segment bends from the side 

 inward to the mi^ldle line and divides all the scutes which 

 follow into two. The nine or ten scutes in front of these are 

 split transversely. The ventral scutes are conspicuous by their 

 wiiitisli or pinkish colour, and are even visible through 

 certain parts of the tube. Anteriorly the brownish dorsum 

 is marked with dark brown pigment at the bases of eleven 

 setigerous processes, the succeeding region of the dorsum 

 being leddish brown. The bodv is paler in the median line 

 dorsally and ventrally. It is slightly tapered jjosterioily, 

 and ends in a papillose anus, tiirce papillre being distinct, 

 and the colour of the tip is orange ratlier than brown. 



The setigerous procesbcs are ranged along the lateral 



