26 
INFUSORIA. 
SPECIES. REFERENCES. STRATA. LOCALITIES. 
CH^TOTYPHLA, Ehrenb. 
Pyritse, Ehrenb. Berl. Trans. 1838 Ch. Gravesend. 
FRAGILARIA, Ehrenb. 
rhabdosoma, Ehrenb. Berl. Tr. 1838. t. 4. f. 4 h. Ch. Gravesend, 
striolata, ...Ehrenb. Berl. Trans. 1838. p. 129. Ch. Gravesend. 
NAVICULA. 
tripunctata, Mag. Nat. Hist. 1839- p. 355 Pl.F. Bryansford, C. Down. 
PERIDINIUM, Ehrenb. 
pyrophorum, Ehrenb. Berl. Tr. 1836. p. 133. Ch. 
t. ]. f. 1. 
PYXIDICULA, Ehrenb. 
prisca, Ehrenb. Berl. Tr. 1836. p. 134. Ch. 
t. 1. f. 8. 
XANTHIDIUM, Ehrenb. 
aculeatum. White, Proc. Mic. Soc. 1842 Ch.F. 
bulbosum,... Ehrenb. Berl. Tr. 1836. p. 134. Ch. 
t. 1. f. 17. 
complex, ...Tiibifei'um, White, Mic. Jour. 2. Ch.F. 
t. 4. f. 11. 
Gravesend. 
Gravesend; Brighton. 
Clapham. 
Gravesend. 
Gravesend. 
crassipes, ...Reade.An.Nat. Hist. 2.t.9-f. 2, 5 ; Ch.F. Surrey. 
White, Mic. Jour. 2.t. 4. f. 9- 
fimbriatum, var. of X. hirsutum. 
furcatum, ...Ehrenb. Berl. Tr. 1836. p. 1 34. 1 . 1 . Ch.F. Kent; Surrey, 
f. 14; Reade, An.Nat. Hist. 2. 
t. 9. f. 1 ; White, Mic. Jour. 2. 
t. 4. f. 5. 
hisurtum, ...Ehrenb. ibid. p. 134. t. 1. f. 10 ; Ch.F. Surrey. 
Reade, An. Nat. Hist. 2. t. 9- 
f. 3, 8 ; White, Mic. Jour. 2. 
t.4.f.4; X. Jimbriatum,tA.f. 3. 
malleoferum. White, Mic. Jour. 2. t. 4. f. 7.... Ch.F. Surrey, 
palmatum, ..TM6(/’erMw,White, M.J.2.t.4. f. 12. Ch.F. Surrey, 
ramosum, ...Ehrenb. ibid. p. 134 ; Reade, An. Ch.F. Kent; Surrey. 
Nat. Hist. 2. t. 9. f. 4, 7 ; 
White, Mic. Jour. 2. t. 4. f. 8. 
~ Reginaldi,...Mant. Thoughts on a Pebble, p. 23. Ch.F. Clapham Common, 
simplex, ...Tubife7'um,'White,M.J ,2.t. 4. f. 10. Ch.F. Surrey^ 
spinosum, ...White, Mic. Jour. 2. t. 4. f. 6. ... Ch.F. Kent; Surrey, 
tubiferum,. ..Ehrenb. Berl. Trans. 1836. p. 134. Ch.F. Kent; Surrey, 
t. 1. f. 16 ; Reade, An. Nat. 
Hist. 2. t. 9. f. 6, 9 ; Mant. 
Wond. of Geol. t. 107- f. 1. 
vestitura, ...White, M. J. 2. t. 4. f. 2 , Ch.F. Surrey. 
The X. tubiferum, simplex, complex, palmatum of White appear to be merely 
varieties of X. tubiferum of Reade. (Mant. MS.) 
