330 



MONOGRAPH OF THE GENUS SCIURUS. 



Red Crag. 



*?Planorbis corneus P Lam. only one specimen. 



*? marginatus ? Montagu ; variety with 



keel slightly prominent and marginal 



*Planorbis vortex, Lamarck. 



*Limnea palustris, (L. tenuis, Woodward). 



105 n. s. between L. fossaria, Mont, and L. 



elongata, Drap. Query, variety of L. palustris. 



* peregra. 



allied to peregra. 



n. s. from Southwold. 



Cor.Crag. 



*Valvata piscinalis, Lamarck. 

 110*?Paludina unicolor P including Pal. obsoleta, me- 

 dia, and rotundata, of Woodward's list; re- 

 cent species inhabits Bengal. 



* impura, Lamarck. 



In addition to the above, fragments of Scalaria foliacea, 

 Murex alveolatus, Hinnites Dubuissoni, Cardium Parkin- 

 soni, Car. grcenlandicum, Astarte Danmoniensis ? and other 

 shells, probably washed out of the red crag. Also a young 

 Pileopsis, and valve of a Chiton, called by Woodward Chi. 

 octovalvis ; also a valve of a Cyclas allied to C. rimcola. 



The Cirripeda are not mentioned in the above list, as they 

 have not yet been sufficiently examined ; but at least two 

 species of Balanus occur, besides some single valves of a 

 large species allied to B. Uddevallensis, and common to the 

 red crag, from which stratum they may have been washed out. 



Art. II. — Monograph of the Genus Sciurus, with Descriptions of 

 New Species and their Varieties. By J. Bachman, D.D., Presi- 

 dent 01 the Literary and Philosophical Society, Charlestown, South 

 Carolina, &c. 



( Continued from page 227.) 



8. Little Carolina Grey Squirrel. Sciurus Carolinensis. 



Sciurus Carolinensis ; Gmel. 



Ecureuil gris de la Carolina; Bosc. vol. ii., p. 96, pi. 29. 



Essent. Char. — Smaller than the Northern Grey Squirrel, tail narrow- 

 er than in that species, the length of the body ; colour above, rusty grey, 

 white beneath, not subject to vary in colour. Dental formula; Incisors f; 

 Canines, {$ ; Molars, ff ;— 22. 



