1915] PALAEOZOIC FossILS FROM HUDSON Bay. II 
—those in the figured fragment are more distant, especially towards the 
base of the young tubes. They are seldom quite flat, usually a little 
waved up or down, as in the last species’’. 
Locality—Lower rapids, Shamattawa river, Manitoba. 
Hovizon—Ordovician. 
Nos. 287 S, 288 S, Royal Ontario Museum of Palaeontology. 
STRIATOPORA, sp. indet. 
Cf. FAVOSITES POLYMORPHA, Salter (non Goldfuss). Sutherland’s Journal of Captain 
Penny’s Voyage to Wellington Channel, etc., Vol. II, 
appendix, p. CCX XVIII, pl. 6, figs. 9, 9a, 1852. 
The collection contains two specimens of a small branching coral, 
showing a maximum diameter of 15 mm. One specimen is badly water 
worn and cannot be relied upon for external characters, the other is 
less worn and shows the slightly oblique apertures, thick walls and 
sharp edges characteristic of Striatopora. The cells are about 2 mm. 
in diameter, but the calyces are too badly preserved to show the radiating 
striz. 
A vertical section shows that the walls of the tubes are at first thin 
and that they increase in thickness as they turn gradually out to the 
surface. Tabulze are very faintly indicated, and mural pores cannot 
be made out, as the specimens are considerably silicified. In view of 
these imperfections it is manifestly impossible to ascribe the form to 
any known species or to attempt its full description. It is very likely 
that we are dealing with the same form ascribed by Salter (op. cit.) to 
Favosites polymorpha, Goldfuss, as the external appearance is very like 
that of the figures given by Salter. 
Salter’s description is in part as follows: ‘‘The tubes are by no 
means of equal size—numerous small ones occurring between the others. 
The edges are somewhat thickened. Internally the tubes are some- 
times cylindrical and smooth, at others more prismatic. They are 
sometimes faintly striate inside. The pores occur in single rows at wide 
distances apart. The transverse diaphragms are not visible in these 
specimens. 
“But another specimen, with all the same external characters as 
the rest, and having the internal diaphragms very plain and rather 
close, about two in the diameter of a tube, and the pores in two rows 
on each face, agrees well with F. crassa of McCoy.”’ 
Locality—Lower rapids, Shamattawa river, Manitoba. 
Horizon—Ordovician. 
No. 297 S. Royal Ontario Museum of Palaeontology. 
