NOTICE OF THE SMILACIXA BIFOLIA. 27 



a gracoful and beautiful plant, and well deserves a share of the admira- 

 tion which is so universally given to the other members of the natural fa- 

 mily, (the lily of the valley tribe) to which it belongs. It is easily re- 

 cognised by its creeping roots, from which arises a delicate stem from 

 five to seven inches in height, with two alternate ovate leaves, and ter- 

 minated by a spike of small, delicate white flowers. It flowers in July. 

 Since its discovery in the woods of Ilowick, I am informed by Mr 

 Duncan, Earl Grey's gardener, that it is found in the woods at Kenwood, 

 the seat, I believe, of the Earl of Mansfield, and from which place, 

 through the kindness of the same individual, I possess specimens, which 

 do not shew any difference from those gathered at Howick, with the 

 exception of their being a little more succulent. It is there found in 

 similar situations, namely, under the shade of beech and fir trees. It 

 may, probably, hereafter bo found in many other quiet, shady spots of 

 our native woods, and will well repay the wandering botanist for his 

 labour of love in its search. 



Embleton, Sept, 21. 1842. 



A Descriptive Catalogue of the GASTEROPODOUS MOLLUSC A 

 of Berwickshire. By George Johnston, M.D., F.R.C.S.E. 



Part III. 



Order— PLEUROBRANCHIATA. 



21. Pleurobranchus. Cuvier. 



Animal naked, gasteropodous ; cloak and foot expanded, the former 

 strengthened by a thin expanded subspiral shell ; tentacula two, 

 with an eye at the base of each ; vaginal orifice anterior to, the 

 anal posterior to, the branchia, which is dextral, lateral, and pec- 

 tinated. — Phytophagous ? 



1, PL plumulay •• cloak broad, reticulated; foot pointed.'' — Flem. 

 Brit. Anim. 291. Bulla plumula, Mont, Test. Brit. 214, tab. 

 16, fig. 9. (the shell.) Turt, Brit. Faun. 168. Turt. Conch. 

 Diet. 26. Berthella porosa, Blainv. Malacolog. 470. pi. 43. fig. 

 1. Pleurobranchus plumula, Johnston in Mag. Nat. Hist. vii. 

 p. 348, fig. 46. 



