394i Miscellaneous, 



greyhound. The tubercular grinders are very variable in this tribe, 

 as will be seen in the following table : — 



Cynalicus 

 Cuon . . . 



False grinders. Tubercular grinders. In all. 



3 1 6 



• 4 1 6 



J. J. -1 



• 4 1 6 



Canis and Vulpes Y T 7" 



^327 

 Utocyon -J- -3- Y 



TEOPHONIA GOODSIRIl. 



{Ann. Nat. Hist. vol. iv. p. 371.) 



The description of this worm was made from specimens preserved 

 in spirits. These, it now appears, were mutilated, having had their 

 tentaculated proboscis detached by the shakings to which they had 

 been exposed in their carriage from the Shetlands hither ; the more 

 easily done, since they were mixed up in the phial with other marine 

 animals. A few days ago I procured three fine living individuals, and 

 I thus learned that the worm has a small membranous retractile pro- 

 boscis furnished with two antennse and eight tentacula. The an- 

 tennae are larger and twice as long as the tentacula, filiform and 

 subannulated ; the tentacula are rather pointed and smooth, and in 

 these specimens were flesh-coloured. They encircle the orifice of the 

 proboscis, and are easily detached by pressure with a needle after 

 the worm has been killed in spirits. 



The discovery of this structure leads to further corrections, for 

 there cannot be the slightest doubt of Trophonia Goodsirii being syn- 

 onymous with the Amphitrite plumosa of Muller, and with the Fie- 

 mingia muricata of the author of this note. See for the synonyms, 

 Ann. and Mag. Nat. Hist. vol. xvi. p. 447. 



The anterior portion of this worm is often bulged like that of an 

 Arenicola. Its resemblance, both in outward figure and in motions, 

 and in mutability of shape, to a Holothuria, e. g. to the Holothuria 

 inJuBrens of Miiller, is very remarkable. — George Johnston, Ber- 

 wick-upon-Tweed, March 6. 



On the possibility of obtaining healthy Tubers from diseased Potatoes, 

 By M. DuRAND. 



About the beginning of October I planted diseased tubers in the 

 earth where they were first developed. They were planted in a hot- 

 house, the temperature of which was constantly from 48° to 54° 

 Fahr. These tubers, buried to a depth of about four inches, appeared 

 above ground in six weeks. Their vegetation was fresh and vigorous ; 

 the leaves attained a height of forty finches. 



I lately pulled up these plants, a6d ascertained that they all bore 

 a certain number of new tubers, the largest of which were of the size 

 of a hen's egg ; that none of these tubers has the least spot exter- 

 nally or internally ; on the contrary, they bear all the characters of 

 perfect health. — Comptes Rendus, March 9, 1846. 



