84 
VINE: NOTES OX YOEEDALE POLYZOA. 
especially at Ilairmyres, the form is fairly abundant, while in the 
Upper Scotch Shales examples are far more robust, and these 
compare more favourably with English specimens found both in 
North Lancashire and in Xoi'thumberland. The Yorkshire examples 
are somewhat unique. 
16. xVCANTHOPOEA STELLIPOEA, Young- & Young. 
= Glaucoriome stellipora.Y . & Y., Quart. Jour. Geol. Soc, 1874, 
p. G82, Vol. XXX.. pi. XL., figs. 5-11. 
= Glauconome (Acanthopora) stellipora, Y. & Y., Proc. Nat. Hist. 
Soc, Glasgow. 1875, pi. IV., figs. 25-26. 
= Glauconome stelUpora, Vine. Proc. Geol. Soc, Yorksh., 1881, 
p. 333, pi XVI., fig. 1. 
This beautiful species is comparatively abundant in the Carbon- 
iferous shales generall3^ In the Lancashire examples the stems are 
slightly more robust than those that are d- rived from the Lower 
Scotch shales, but the characters are the same. Stem ornamented 
wnth a sinuous mesial ridge. Zorccia. orifice circular, over which 
eight radial denticles converge. " A smaller orifice being placed at 
one end of the cell (beneath) and separated from the larger aperture 
by an interval, which never exceeds one-third the diameter of the 
larger cell." 
Localities : Yoredale ; Gleaston Castle, Little I'rswich, Holker 
Park, North Lancashire. Hurst, VV. Yorkshire. 
17. ACAXTHOPOEA STELLIPOEA, Y. & Y. Var. spiuosa, Young & 
Young. 
(The same w^orks as referred to for No. 16.) 
The branches of the variety have a strong, straight, central 
keel, not sinuous ; this is tuberculated along the central part of the 
keel. A fragment of the Hurst examples of this yariet}^ was 
figured (PI. XVL, Vol. VIL, Proced. York. GeoL Soc) 
Localities : Yoredale ; Gleaston Castle, Little Urswich, Holker 
Park, North Lancas. Hurst, \V. A^orksbire. 
18. ACTIXOSTOMA FENESTEATUM, Young k Young. 
Ihid. Quart. Jour. Geol. Soc, Vol XXX., p. 082, pi. XL., figs. 1-4, 
pi XLI . figs. 12-16. 
