16 Mr. J. G. Jeffreys on some British Shells. 



V. — Additional Notices of British Shells. 

 By J. Gwyn Jeffreys, F.R. & L.S. 



Since the publication in the 'Annals' for May of my notices of 

 shells new to Great Britain or interesting by reason of their 

 locality, the following species and memoranda have occurred to 

 me. 



The Orbis foliaceus appears not to belong to the Mollusca, 

 but to the Foraminifera, although the shell is not concamerated. 

 Peracle (Forbes) Flemingii. Fusus retroversus, Flem. Wern. 

 Mem. iv. 498. pi. 15. f. 2. Peracle physoides, Forbes, Report 

 on iEgean Invertebrata, Brit. Assoc. Rep. 1843, p. 132 ? A 

 single specimen occurred to Mr. Barlee and myself while dredging 

 this month off Skye in about fifty fathoms water. 



Bulla strigella. Cylichna strigella, Lov. Ind. Moll. Scand. 

 p. 10. A broken specimen was received by Mr. Barlee from 

 Loch Fyne. The markings and form are very characteristic, 

 and distinguish it from any other species. 



The Bulla truncatula of Philippi appears to be the Cylichna 

 nitidula of Loven. 



Rissoa labiosa, var. Helix labiosa, Mont. p. 400. t. 13. f. 7. 

 Rissoa elata, Phil. vol. ii. p. 124. t. 23. f. 3 ? Loch Fyne (a 

 single specimen), and also at Tenby. 



Rissoa soluta. Melaniai?.) soluta, Phil. vol. ii. p. 121. t. 24. 

 f. 1. Loch Fyne; a single specimen. 



Rissoa striatula, n. s. 

 Testa subcylindrica, scalariformis, teres, alba, nitidula, subpellucida, 

 striis exaratis confertis transversim cincta. Anfractus 5, obli- 

 qui, rotundati, ultimus reliquam testae exsuperans, sutura pro- 

 funda divisi. Apex obtusus. Apertura ovalis, fere tertiam par- 

 tem testae subsequans, superne subangulata, ad basim rotundata et 

 subeffusa. Peristoma simplex, continuum, columella? adnatum. 

 Umbilicus vix ullus, angustissimus. Long. J, lat. -j-q unc. 

 Rissoa pulchra, Forbes, Brit. Assoc. Rep. 1843, p. 189? Cork 

 Harbour and other parts of the Irish coast. It somewhat resembles 

 in appearance the R. vitrea (with which Mr. Alder has identified 

 it in the ' Annals ' for 1840, p. 328), but it is distinguishable by 

 its more slender form, the volutions not being so ventricose, nor 

 the suture so deep, and the aperture not being so rounded, but 

 above all by the elegant close-set strise which encircle each volu- 

 tion. - 



Odostomia eulimoides, n. s. 

 Testa ovato-oblonga, solidula, nitida, longitudinaliter sub lente stri- 

 atula, alba. Anfractus 7, planiusculi, sensim increscentes ; ultimus 

 reliquam testae aliquantulum exsuperans et in medio subcarinatus, 

 sutura distincta sed non profunda. Apex obtusus. Apertura 



