DURING THE SUMMER OF 1907. 223 



24 tentacles. Tn the first of these the basal lines were not visible ; in 

 the one with 24 tentacles they were blue, and the tentacles had a faint 

 white core. 



Acontia were emitted from both mouth and column. 



These larger specimens were much more robust and darker in colour 

 than any I have seen on the English or Welsh coasts ; in such the 

 column is generally white or pale orange (as in the young form 

 described above), and the basal lines blue or purple. 



With the exception of this species (and the next to be described) the 

 anatomy of most of the forms obtained by the Huxley is well known. 

 An attempted investigation of this species ended in failure ; the 

 tissues were hard and brittle, due to preservation in too high a per- 

 centage of formalin. The external form and colour were excellently 

 preserved however. It would be well when several specimens are 

 obtained to preserve those intended for anatomical purposes in alcohol, 

 and museum specimens in formalin. 



SAGARTIA SP. 



Voyage XCIV. Station 56. The Sole Pit. Lat. 53° 36' N. Long. V 30' E. 

 45 fathoms. 1 specimen. 



Attached to a dead valve of Ostrca. Expanded diameter, 25 mm. 

 base slightly exceeding the column, outline irregular and lobed. Column 

 firm, much wrinkled during contraction, slightly so when expanded. 

 The summit smooth, margin tentaculate ; a few weak suckers on the 

 upper parts of the column. Colour of column dull white, the mesen- 

 teries showing as white longitudinal lines, especially about the base. 



Disk transparent white, the mesenteries showing as numerous white 

 radial lines ; mouth large and frequently gaping ; lips lobed, yellowish ; 

 throat brownish buff'. 



Tentacles about 96 in number, thick and swollen at the base, tapering 

 gradually to the tip, white (showing an irregular white core during con- 

 traction), with a faint lilac tinge, stronger upon the lower parts and 

 most pronounced during contraction. During complete contraction the 

 tentacles show through the column wall as a broad lilac or light purple 

 area. Examination with a lens shov/ed this colour to occur upoii the 

 tentacle in little streaks. Acontia sparingly emitted and only after 

 severe irritation. Much flattened upon complete contraction. I am 

 not aware of any species of the genus to which I can safely refer 

 this form, but it appears to be nearly allied to S. miniata ; further 

 material may provide additional evidence and permit of the form being 

 examined anatomically. 



