236 
VINE : PALEONTOLOGY OF THE WENLOCK SHALES. 
Family Auloporide Nich., Tab. Cor., p. 219. 
I have ill my collection a number of fragments that may ulti- 
mately find a resting place in this family. They seem to me not to 
belong to species of Syringopora, Goldfuss. Some examples resemble 
Cladoconus M'Coy, and appear to be related to C. Michelini Ed. & H., 
and others to the singular genus Monilopora Nich. & Eth., Jun. But 
as species of this genus are Carboniferous, I cannot place them here 
with confidence. 
In his paper on the Corals and Bryozoans of the Lower Helderberg 
group. ''^ Mr. James Hall describes several examples of Aulopora, and 
judging from the written descriptions, some of our own species may 
be closely related to the Helderberg group. In the absence of figures 
or fossils I cannot say. 
9. Halysites catenularia, Linne. = Catenipora, Lonsdale. 
Fragments belonging to this and to some other of the synonymous 
forms given by Ed. & H., Brit. Foss., pp. 270-1, are very abundant in 
the washings, but generally water-worn. 
10. Halysites escharoides, Linne. Catenipora id., Sil. Sys., 
p. 685. 
If I relied solely upon the external characters it would be diffi- 
cult to separate the two species which Edw. & Haime regard as one. 
But the fragments, though small, are valuable for sections, and " by 
means of microscopic sections . . . the form known as H. escharoides 
Linne, is distinguished from the typical H. catenularia Linne, not 
only by the superficial characters, but also by the constant possession 
of spiniform septa, and the apparently constant absence (?) of small 
tubes between the larger ones.f 
11. Thecia Swindernana, Edw. & H., Brit. Foss. Cor., p. 278. 
Fragments of this species are abundant in the shales, but it is 
only rarely that specimens can be obtained that will show the beautiful 
superficial characters. 
12. Heliolites interstincta, Linne. See Brit. Foss. Cor., p. 249. 
This well-known species, which had a wide range in Silurian times, 
is found in the shales in fragments or what really appears to be full-sized 
* Albany, 1880, 32nd Annual Kept, of the State Mag. , N- York, 
t Nicholson's Tab. Cor., p. 229. ? mine. 
