DURING JULY AND AUGUST, 1907. ^31 



It was living upon a colony of Tuhularia larnyx, which was growing 

 upon a large stone. The spawn, which was similar to the figure of 

 Alder antl Hancock, was attached to the bases of the Tuhularia. 



CRATENA AMOENA (A. & H.). 

 Voyage XCV. Station 23. S. edge of the Coal Pit. 24 fathoms. 2 specimens. 



The two examples of this most beautiful species were discovered 

 creeping about the base of a colony of Sertularia argenta, growing upon 

 a dead valve of Pecten opercidaris. 



Length 6 and 4 mm. respectively. 



They differed from Alder and Hancock's plate and description in 

 the following particulars, but otherwise were similar : — 



1. The oral tentacles were not much longer than the rhinophores, 



and were white and without the brown band. 



2. There was a prominent dark green mark on the centre of the 



head, probably due to the jaws showing through the tissues. 



3. The red band on the rhinophores was broad, and in one specimen 



occupied the centre of the organ. In the other specimen the basal 

 half of the rhinophore was red-brown and the upper half white. 



4. The foot was more bilobed, and produced into rounded lobes at 



the sides. 



The animals were active and restless, and progressed with ease on 

 a flat surface contrary to Alder and Hancock's surmise. 



Papillae pale green, spotted with white and brown at their bases ; 

 a few white spots were present on the head region, but I could not 

 make out any " white tubercles " in that region. 



GALVINA CINGULATA; A. & H. 



Voyage XCIV. Station 13. Inner Silver Pit. 43 fathoms. 1 specimen. 

 Length 13 mm. 



The specimen was in a very perfect condition, and as it differs in 

 several minor points from the plate and description of Alder and 

 Hancock, a detailed description may be of interest. Body dull white, 

 shaded, patched, blotched, and streaked with brown and olive-brown, 

 much darker in the regions from which the papillae arise. 



The rhinophores smooth and very little shorter than the oral 

 tentacles, a band of olive near the tip, and streaks of white down to 

 the base. Oral tentacles similar. Head olive, spotted with white. 

 Eyes not discernible. The region immediately behind the head streaked 

 and lined with dark olive-brown and spotted with white. 



NEW SERIES. — VOL. VIII. NO. 2. *<! 



