nOM(EOSOLEX. 
77 
Homceosolen ramulosm, Mantell, 1854. Med. Creation, 2nd ed., p. 271, 
tigs. 9, 11. 
,, ,, Vine, 1893. Compl. Rep. : Rep. Brit. Assoc. 1892, 
pp. 333-4. 
,, aculeatm, Vine, 1893. Ibid. p. 334. 
Crisisina carinata Reuss), d’Orbiguy, 1850. Prod. Pal. vol. ii. p. 265. 
Truncaitda ,, {non Reuss', pars, d’Orbigny, 1854. Bry. Cret. p. 1058, 
pi. 797, tigs. 5-10, non 11-15. 
,, ,, {non Reuss), Peron, 1888. Craie Angio-Par. : Bull. Soc. 
Sci. nat. Youne, vol. xli. p. 264. 
non ,, ,, Bucaille, 1890. Bry. Cret. Seine-Inf. : Bull. Soc. Sci. nat. 
Rouen, vol. xxv. p. 512. 
,, ,, Canu, 1900. Bry. Tours ; C.R. Assoc, franc. Av. Sci. 
1899, p. 410. 
,, ,, Canu, 1903. Fauue Cr. Yilledieu : Bull. Soc. geol. 
France, ser. 4, vol. iii. p. 266. 
lIonuBosolen ,, Vine, 1893. Compl. Rep. : Rep. Brit. Assoc. 1893, p. 334. 
? Supercytis dig'Uata, d’Orbigny, 1854. Bry. Cret. p. 1060, pi. 798, tigs. 6-9. 
,, ,, Pergens A Meunier, 1887. Bry. gar. Faxe : Ann. Soc. 
make. Belg. vol. xxi., Mem. p. 221. 
non ,, ,, Reuss, 1872-3. Bry. unt. Quad. : Pabeontogr. vol. xx. 
pt. i. p. 123, pi. XXX. tig. 5. 
non ,, ,, Reuss, 1874. Bry. ob. Pliln. : Pabeontogr. vol. xx. pt. ii. 
p. 136. 
,, ,, Bucaille, 1890. Bry. Cret. Seine-Inf. : Bull. Soc. Sci. nat. 
Rouen, vol. xxv. p. 512. 
no)i ,, ,, ? Macgillivray, 1895. Mon. Polyz. Viet. : Trans. R. Soc. 
Viet. vol. iv. p. 145, pi. xxii. tigs. 1, 2. 
,, ,, Gamble, 1896. Cat. Bry. Chatliani, p. 6. 
Homooosolen olternatns, i^VOxh., Vine, 1893. Compl. Rep.: Rep. Brit. Assoc. 
1892, p. 334. 
? Semicytis plebeia, Vine, 1893. Ibid. p. 333. 
Diagnosis. 
Zoarium of broad, thick branches which increase in number either 
by dichotomous division or by giving off secondary branches, 
which bend forward and run in the same direction as the 
branch from which they have sprung. The even curves of 
the branches give the zoarium a somewhat flamboyant aspect. 
The sub-branches taper regularly. The shorter sub-branches 
appear, owing to their quickly tapering and curved form, as 
hook-shaped processes from the stems. 
Both surfaces of the main stems may be flat or of an even curve, 
but may be sub-carinate in places. 
The apertures of young zooecia appear like pores in well-preserved 
specimens. 
