On the Tentacles of an Antarctic Siplionophore. 27 



canals. The mesoglea, which is indicated {d) in both 

 sections, fills most of the space, while centrally there is a 

 large endodermal canal (e). 



The noteworthy features of possible diagnostic value are — 



(1) The large size of the tentacles, indicating an organism 



of some bulk ; 



(2) The absence of tentillse and of localised stinging 



" organs " (houtons urticants) ; 



(3) The specially well-developed ectodermal longitudinal 



muscular canals, and a large endodermal canal. 



Although these data are barely sufficient for positive 

 identification, the characters point to the family Apoleminse, 

 of which the genus Apolemia, a Mediterranean form which 

 reaches a size of 2 to 3 metres, and whose tentacles are 

 without tentillse, appears to be near the form at present 

 described. 



VI. Fiirther Additions to the List of Spiders from the 

 Edinburgh District. (Third Supplement.) By Prof. 

 G. H. Carpenter, B.Sc, M.E.I.A., and William Evans, 

 F.K.S.E. 



(Read 19th December 1904.) 



Our last communication to the Society on this subject 

 was made in 1899, and is contained in the Proceedings for 

 that year (Vol. XIV. pp. 168-181). Since then, Evans, 

 though not working specially at the Spiders, has continued 

 to some extent his search for additional species and fresh 

 records in various parts of the district, with the result that 

 we are now able to add fourteen species,^ some of them of 

 very considerable interest, to our former lists. Up to the 

 middle of 1899, the number of species recorded for the 

 district was 191, from which, however, one has to be de- 

 ducted as explained farther on, leaving a total of 190 to that 

 date. The 14 species now recorded brings the number up 

 to 204 ; but one of them, namely, Rasarius adansonii, it has 



^A probable fifteenth — Drassua sylvestris, Bl.?, imm. S — is held over till 

 the doubt can be removed by the capture of an adult specimen. 



