60 BRITISH DIATOMACE^, 



Fresh water. Near Guildford, Mr. Capron, Nov. 1852. Lough Mourne 

 Deposit. Cantyre Peat. Premnay Peat. (New Zealand : Nova Scotia.) 



Plate XIX. 187. Frustule with endochrome. Frontispiece, fig. CLXXXVII. 



4. Stauroneis salina, n. sp. V. elliptical-lanceolate ; stauros linear ; 

 striffi faint, 45 in -001". Length -0016" to -0022". v.v. 



Marine. Shoreham, Aug. 1851, W. Sm. Folkestone, Nov. 1852,ilifr. Capron. 

 Plate XIX. 188. 



5. Stauroneis dilatata, n. sp. V. elliptical, extremities slightly 

 produced; stauros linear, not reaching the margin; striae 30 in 

 •001". v.s. 



Fresh water. Aberdeenshire, Dr. Dickie. Cantyre Peat. 

 Plate XIX. 191. 



6. Stauroneis crucicula, n. sp. V. elliptical, extremities slightly 

 produced ; stauros very narrow, linear, reaching the margin, v.v. 



Marine. Belfast Bay, Aug. 1849, TF. Sm. 

 Plate XIX. 192. 



7. Stauroneis anceps, Ehr. V. elliptical, constricted towards the 

 produced extremities ; stauros linear, not reaching the margin ; 

 striae very delicate, 45 in "OOl". v.v. 



Ehr. in Kiitz. Bacill. xxix. 4 ? 



Freshwater. Swanage, Dorset, March 1849; Lewes, Oct. 1852, W. Sm. 

 Lanshaw Spa, Katefield, Lancashire, Mr. G. Smith, Jan. 1852. Ben M"" Dhui, 

 Mr. P. Grant. Marl, Co. Down. 



Plate XIX. 190. 



8. Stauroneis linearis, Ehr. V. elliptical, inflated at centre and at 

 the extremities, which are apiculated ; stauros linear, reaching the 

 margin ; striae obscure, v.v. 



Kiitz. Bacill. xxx. 26. 



Fresh water. Plumpton and Lewes, Sussex, Apr. 1852, TF. Sm. Shalford, 

 Mr. Capron. Premnay Peat. 



Plate XIX. 193. 



