A»«KJ>n; lUiscellaneom: ft-is«»i<jS' 



*3 



Pinnularia biceps, W.G. Synedra ininutissima. 



acicularis. 



Cocconema lanceola- ^ 

 turn. ^^^ju — 



cymbifortMfiil''' — 



cistula. 



Gomphonema tenellum 



olivaceura. 



constrictum. 



coronatum. 



■ Fusticulus, Sm. ? 



geminatum. 



insigne, W. G. 



Meridion circulare. 

 Achnaiithes exilis. 

 Achnanthidium lanceo- 

 latum. 



linearis, fV. G. 



acuta. 



Stauroneis Phcenicen- 



terou. 



punctata. 



anceps. 



acuta. 



linearis. 



— ^ — rectangularis, 



W.G. 



undulata, W. G. 



dubia, W. G. ? 



Pleurosigma attenua- 



tum. 

 Synedra radians. 

 lunaris. 



jsiui 



Hiraantidium Arcus. . .^ 



undulatum. lali 



gracile. 



- Fragilaria capucina. 

 ■ Odontidium mutabile. 



mesodon. 



. — — Harrisoni, Stn. 



Tabellaria. 



Denticula tenuis. 



• sinuata. 



Tabellaria fenestrata. 



flocculosa. 



Diatom a elongatum. 



Melosira varians. 



distans. 



Mastogloia elliptica. 



Colletoneraa neglectum. 



To the names of such species as have been recently added to the 

 British flora, the name of the observer is added. 



It will be seen that the number and variety of species is considerable, 

 yet, as we have found it in all other localities in the summer or autumn 

 of 1 S55y smaller than usual. The species are, with very few exceptions, 

 such as belong to fresh water ; for the only forms that belong to 

 brackish or sea water are Navicula elegans^ Pinnularia peregrina^ 

 and perhaps Synedra acicularis. 



There are one or two forms, which, although I have described them 

 as occurring in the Glenshira sand, are yet more frequent in some of 

 these gatherings than I have seen them elsewhere. Such are Cocconeis 

 transversalis, which I have also found in other freshwater gatherings ; 

 and Tryblionella apiculata, figured in the paper I lately read to the 

 Royal Society of Edinburgh. The rest of the forms, with the ex- 

 ception of those marked with my name, and one or two others of 

 Ehrenberg's, are such as have long been known, and are very frequent. 



MISCELLANEOUS. 



'io ml s 



EDWARDSIA VESTITA (fORBES). ,8ddi§ flirff&Ujitj ' 



One of the most interesting additions to our native' zo'optiytolbgy 

 that has been made for some time is a species described by the late 

 Professor Edward Forbes under the above title from specimens found 

 by him on the island of Paros in the iEgean Sea*. It is a vermiform 

 Actinia some six inches in length, with a beautiful expanded disk of 

 spotted tentacles ; the most conspicuous phsenomenon in its oeconomy 

 being that it inhabits a tough thick tube formed of condensed mucus, 

 which is secreted in great abundance and thrown off from the surface 

 of its body. 



This curious and beautiful zoophyte has been procured in some 

 numbers by Mr. W. A. Lloyd from the coast of North Wales ; and 



* See Annals and Mag. of Nat* Hist, for December 1841, and for July 

 1843. 



