HOLOTHUBIA. N 



c,,vered with suckers void of evident arraiii:emcnt. The Bin: 

 entirely of a dingy whit.- colour, with a fr\v brown patches irregularly 



interspersed. 



On the whole, this subject, except in its proportions, bore consider- 

 able resemblance to the lliJuthiirin Jnsus. But, unable to identify it 

 either with that or with any of the rot which I have seen, I propose to 

 name it, provisionally, lltjnthurin .S'/W /,-//, as indicative, at least, of tin- 

 country of its nativity. Plate XII. fig. 5. 



In two days the creature had expanded ten inches in length, by 

 alxmt one where thickest, the ln>dy t icing round, and tai>cring slightly 

 towards the extremities ; \ et it did not adhere, though feebly discharg- 

 ing a stream from the posterior orifice. In nine days, however, some ot 

 the suckers were in adhesion, afterwards they were discovered to be in 

 live rows, as in other nine days the animal had established itself firmly 

 in its vessel. 



This is the usual course followed by all Holotlmrioe, on original re- 

 covery from the sea. 



The specimen seemed to be gaining strength along with the advance 

 ot the season ; and it began to display some of the habits of the />//. 

 Mich as appeared from the curvature of the body in its position, together 

 with greater elongation while the day declined. 



After having preserved this specimen half a year, under constant 

 observation, without protrusion of the tentacular organs, I concluded 

 that they had been lost before it came into my possession. 



Nevertheless, the skin now growing purer, thinner, and more dia- 

 phanous, which was promoted by the specimen being kept continually 

 in the dark, symptoms of internal reproduction were exposed within. 



r the anterior extremity, an internal darkish portion, much COM 



intr with the external whiteness, denoted progressive^regeneration. 



It shewed that the animal had actually lost the arborescent appa- 

 ratus, with the appendages. 



During the season of redintegrat ion. we have seen that almn-t nn, 

 plete nuiescence prevails. 



