224 PENTACTVE. 



olivaceous and white colour ; at first the shape of a lemon, 

 and nearly as large as a middle-sized one ; to-day two 

 inches long, contracting itself slowly in many places, but 

 has not yet shown its tentacula. It has five broad longi- 

 tudinal bands of tubercle-like suckers running from end to 

 end ; these have four in each transverse row ; suckers 

 light brown ; down the middle of each of the five series 

 a whitish band extends to the spaces between the belts 

 of suckers of a bluish-white, with numerous narrow trans- 

 verse whitish lines of various breadth." When preserved 

 in spirits, in which state I examined and delineated it, 

 the body appeared white, with a tinge of pink, angular 

 and corrugated; the corrugations were smooth, and the 

 suckers very numerous on the angles. There were from 

 six to twelve suckers in each transverse irregular row, and 

 a few scattered in the furrows between the corrugations. 

 The tentacula were long and pedicled, trifid towards their 

 extremities, and pinnate, their colour being deep purple. 



Mr. Goodsir dissected the species, and found the dental 

 apparatus to be very large, strong, and of a deep purple. 

 The teeth consisted of twenty triangular pieces, attached 

 back to back in pairs, with processes running forward to 

 the mouth. The retractile muscles of this machinery were 

 ovate, and attached to the anterior part of the body. To 

 the circular canal surrounding the oesophagus there were 

 attached, by narrow necks, three elongated, ventricose, 

 pointed, transparent vesicles, perfectly free in all direc- 

 tions. The intestinal canal exactly resembled that figured 

 in Hunter's drawing. The respiratory apparatus was 

 very highly developed, more so than in the drawing 

 alluded to, extending, when stretched out, four inches. 

 This tree had no vesicles or cceca attached to its trunk. 



