874 Transactions of the Soelety. 



admit of no question. I am informed by Prof. Williamson that the 

 Scarborough specimen has been lost, but that it was of precisely similar 

 character. A mounting from the Portsmouth gathering has been placed 

 with the series of British Foraminifera in the British Museum. 



There are a few other names that will not be found in their old 

 places, partly owing to needful generic changes ; of these the following 

 are the more important : — 



Biloculina contraria and Hauerina compressa — are now transferred 



to Planisjnrina contraria. 

 Beojjhax moniliforme, is referred to B. findens. 

 Textularia difformis — to Bolivina difformis. 

 Textularia pygmsea — to Bolivina dilatata. 

 Cassidulina jpulchella and CassiduUna ohlonga, — to C. Isevigata and 



G. crassa respectively. 

 Lagena jeffreysii — to L. Jdspida. 

 Lagena lyellii — to L. sulcata and L. costata. 

 Nodosaria (Dent.) guttifera, — referred to N. jpyrula. 

 Marginulina lituus — to Cristellaria elongata. 

 Polymorphina orhignii. — Fistulose specimens of PolymorpJiina 



are associated with the forms to which they 



respectively belong, and not treated collectively 



as a single species. 

 Biscorhina ohtusa — has been transferred to D. wrightii. 

 Biscorhina ochracea — to Trochammina ochracea. 

 Bulvinulina sacculata. — The locality given by Messrs. Parker and 



Jones for this form — 50 miles south-west of 



Ushant — is outside the British area. 



Attention may be directed to certain species and varieties which have 

 been retained in the list, but concerning which considerable uncertainty 

 still exists; namely, — Valvulina conica, Trochammina macrescens, Tr. 

 plicata, Bathysiphon Jiliformis, Blacopsilina bulla, P. varians, Beophax 

 findens, Bamnlina glohulifera, Spirillina tuber culata, Nonionina 

 boueana, and N. asterizans. Further observations are still required on 

 these, as well as on a few other forms that need not here be enumerated, 

 to place our knowledge of their characters and distribution on a satis- 

 factory footing. 



I have now only to thank most cordially the naturalists who have 

 aided me with notes and suggestions embodied in the following pages. 

 I have already expressed the obligation I am under to Mr. Archer, and 

 my acknowledgments are also due in an especial manner to Messrs. 

 Joseph Wright, F.a.S., of Belfast, F. W. Millett, F.E.M.S., of Marazion, 

 and David Kobertson, F.G.S., of Millport, N.B., whose labours in con- 

 nection with tlie British marine Khizopoda are widely known, for much 

 assistance, ever most kindly and freely rendered. To the friendly 

 co-operation of these gentlemen any claim the present Synopsis may 

 have to approximate completeness is largely due. 



