NATURAL HISTORY SOCIETY OF GLASGOW. 1 1 9 



the Northern or Septentrional Zone. There is no parallel instance 

 as yet among Scotch mosses of a species found in the Northern and 

 Southern Zones without a locality also in the intermediate zone.* 

 This species — new to Britain — is an addition also to our list of 

 British genera. He also exhibited specimens of Campylopus hrevi- 

 folius, Sell., and Campylopus alpinus, Sch., two recently published 

 species new to Britain; but he remarked that the latter, though 

 differing in some slight particulars, was probably identical with 

 C. inter medius, Wils. MS., found some years ago in Wales. Both 

 of these he had found on Succoth Hill, near Arroquhar, in June 

 last, and again in July, when in company with Professor Schimper 

 — the localities being Craig-na-Gour and Glen Dochart. He had 

 lately observed female flowers on the specimens of Campylo'pus 

 alpinus, these having been previously unknown. 



Mr David Eobertson exhibited specimens of a Thysanopod, and 

 made the following remarks: — 



I have just learned that this animal will likely turn out to be, 

 not Thysanopoda Couchii, but Thysanopoda Norvegica, a species 

 lately described by Prof. Sars. Strange to say, the same post that 

 carried one of my ]5ackages of them to the Rev. A. M. Norman 

 took other specimens of the same animal to him from the 

 Moray Firth, this being, so far as I know, the first met with in 

 Britain. Mr Bell's specific character of Thysanopoda Couchii quite 

 agrees with this species, so far as his description goes, and might 

 include a dozen more, it is so brief and vague. 



Thysanopoda is placed in the family Alysidce, but diflers from 

 the Alysis proper in having well developed branchial appendages 

 attached to the base of each pair of thoracic natatory legs, which 

 places it closer to the Squilidoe., especially as the last joints 

 of the first thoracic feet are furnished with a mixed and compli- 

 cated arrangement of spines, which gives these organs, in some 

 degree, the prehensile character of the anterior feet of the Squila. 



The first that I observed was from the stomach of a sea bream, 

 (Pagellus centrodontus), which was taken by Mr M. P. Bell atCumbrae, 

 on the 12th of July last. From one fish I took 121 Thysanopods, 



* The late Jolm Nowell, the well-known bryologist of Todmorden, to whose 

 indefatigable exertions the Enghsh moss flora owes so much, had gathered this 

 moss some years before in two locaUties in England, but his specimens having 

 been referred, by mistake, to Pterogoaium gracile, attention was only directed 

 to the matter in consequence of the discovery at KiUin. 



