268 
Mr. A. W. Waters on the 
Prof. Smitt for the Cheilostomata, and indicate the mode of 
growth as stadia: thus compound colonies of Discoporella form 
Radiopora ; Alecto , Entalophora , Tubulipora, Idmonea have 
their allies erect and adnate. 
78. Crisia cornuta , L. 
Crisia cornuta, Smitt, var. a, Krit. Fort. 1864, p. 115, 
Crisidia cornuta, var. geniculata, Busk, Mar. Polyz. pt. iii. p. 3, pi. i. 
figs. 1, 4. 
Hob. Scandinavia, Finland, Greenland (Sm.) ; Britain and 
France ( B .); Naples, rare. 
79. Crisia producta, Smitt. 
Crisia producta, Smitt, Krit. Fort. of. Sk. Hafs-Bry. 1864, p. 116, 
pi. xvi. figs. 4, 5, 6. 
Crisia eburnea, var .producta, Norm. Rep. of the Shetland Crust. &c., 
Brit. Assoc. Rep. 1868, p. 309. 
Some parts closely resemble the last variety ; but it is very 
variable: sometimes an internode occurs near the growing 
extremity with only one cell; others adjoining have from two 
to six. It is larger than the last, with cells half as large again, 
and longer. Ovicell axillary. 
As there are connecting links between this and cornuta , it 
might well be called C. cornuta , var. producta , or even C. 
geniculata, var. producta. 
Hob. Scandinavia (Sm.) ; Shetland, 100-170 fathoms 
(Norm.) ; Naples, littoral, among seaweeds, rare. 
80. Crisia fistulosa, Ileller (non Busk). 
(PI. NXIII. tig. 3.) 
Crisia fstulosa, Heller, Die Bry. des Adriat. Meeres, p. 118, pi. iii. 
fig. 5. 
?Crisia eburnea, Smitt (pars), Kr. Fort. of. Sk. Hafs-Bry. 1864, pi. xvi. 
fig. 7. 
Crisia Haueri, Reuss, Foss. Poly, des W. T. B. p. 54, pi. vii. figs. 22, 
24. 
?Crisia eburnea, Manzoni, I Bri. foss. del Mioc. d’Austr. ed Uugh. p. 3, 
pi. i. fig. 1. 
This would certainly seem to be the species thus named by 
Heller ; and the one so called by Mr. Busk is quite different, 
and does not at all correspond with Heller’s figure or descrip¬ 
tion. Prof. Heller’s comparison with C. geniculata would be 
most inappropriate for the C. Jistulosci of Busk, whereas for 
the present form it is apparent. 
Loc. Miocene: Nussdorf, Bcrchtoldsdorf, Wieliczka. Plio¬ 
cene: Rhodes (M.). Living: Naples. 
