302 MR. J. Y. Johnson's notes [June 25, 



ence between dimensions of those in the several series, conical, of a 

 pale-brown colour, with a slight purple tinge. When contracted, of a 

 dark sepia-brown. Mouth with an azure-blue spot at the oppo- 

 site angles. Acontia, none observed. 



Size from half to three-quarters of an inch in height, and from 

 one-third to one-half an inch in height. 



Found on the underside of stones in pools near low water-mark. 



This pretty species is not very common : it is of very quiet habits, 

 and dislikes the light. When in the aquarium it hardly ever expands 

 its tentacles in the day-time, and at night, if brought within the in- 

 fluence of light, the animal immediately takes alarm. A specimen 

 is now living in one of my tanks. A few days ago, on looking at it 

 after an interval of four or five hours, I found, to my surprise, that it 

 had in the meantime surrounded itself with a progeny of fourteen 

 young ones, the average size of which was one-tenth of an inch in 

 height and diameter, though some were smaller and some nearly 

 twice as large. They were of a dull flesh-colour; but on the larger 

 ones the purplish-blue marks began, in the course of a few hours, to 

 show themselves as rows of dots, with irregularly arranged dots filling 

 up the spaces between the rows of each pair. Some of them dis- 

 j)layed their tiny tentacles in a ludicrously old-fashioned manner. 

 As to the mother, she had contracted her tentacles until they were 

 little more than papillae ; the disk was puff'ed out much beyond their 

 tips ; and the mouth was gaping widely, displaying a red throat ; the 

 base was quite free, and was altogether concealed by the contraction 

 of the body. 



Bunodes listeri, sp. n. 



Base adherent to rocks ; its diameter about equal to the height 

 of the column. Column, when expanded, usually from half to three- 

 quarters of an inch in height ; but one specimen extended itself to 

 the length of an inch and a third, with a diameter of four-tenths of 

 an inch. Surface red, beset with longitudinal rows, about twenty- 

 four in number, of small white tubercles, which have a spot or streak 

 of red at their apices. There are from ten to sixteen tubercles (taking 

 different specimens) in a row ; these tubercles can be employed as 

 suckers, and by them I have seen the animal adhere to the bottom 

 or side of a glass in which it was li\ ing ; the alternate rows some- 

 times cease with the third or fourth from the disk. Disk frequently 

 cup-like, without marginal spherules, very transparent, with a row 

 of small white spots at the inner base of the innermost series of ten- 

 tacles : sometimes there are white spots between the tentacles. Mar- 

 gin of disk uneven, by reason of the highest tubercles of the column 

 forming part of the outline. Mouth with a pale ring around it. 

 Tentacles numerous, in about three rows near the margin of the disk, 

 those of the innermost row longer, and these are as long as the dia- 

 meter of the column, decreasing in size outwards, pale flesh or 

 brown, but sometimes bearing white opake spots, very pellucid, coni- 

 cal, simple, readily retractile, and usually brown, curled at the tips. 



This pretty species is very distinct from all the other Madeiran 



