20 
2. Heliolites Mtjechisoni, 3Iilne Edwards and J. Eaime. 
Compound turbinated madrepora, Parkinson, 1820. Organic Eemains, II, p. 69, 
pi. 7, fig. 10. 
Ealceopora interstincta, var. suhtubulata, McCoy, 1851, Brit. Pal. Poss., p. 16, 
pi. Ic, fig. 2. 
Eeliolites Murchinsoni, Milne Edwards and J, Haime, 1851, Polyp. Eoss. Terr. Pal., 
p. 215. 
,, Idem, 1852, Mon. Brit. Eoss. Corals, p. 250, pi. 57, fig. 6. 
This coral consists of larger or smaller masses, variable in outline, but 
usually very gibbous. Coenenchyma is very abundant, and the calices are 
pretty far apart. They are small and not deep. When well preserved, twelve 
septa are present ; the tabulas are not always regularly spaced ; they are 
often a little oblique to the axis of the calice. The coenenchyma is composed 
of the assemblage of a large number of small-chambered, fairly regular tubes. 
This species has often been confused with Linnseus, H. interstinctus, 
from which it is, however, distinguished by the distance apart of the calices. 
Eorizon and Localities. — Some good specimens of this species were 
found with the preceding ; it has been recorded from the Silurian limestone 
of Wenloclv, in England, and of Gothland, in Sweden. 
MOLLUSCOIBEA. 
BRACHIOPODA, 
Genus — OHONETES, Fischer de Waldheim. 
Chonetes striatella, Lalman. 
Orthis striatella, Dalman, 1827, Kongl. Akad. Hand!., p. Ill, pi. 1, fig. 1. 
Leptcena lata, Von Buck, Abhandl. Akad. E Wissenscli. Berlin, pp. 53 and 70, pi. 3, 
figs. 1, 3, 5-9, 14, 15, 
Chonetes striatella, L. G-. de Koninck, 1847, Mon. Genre Chonetes, p. 200, pi. xx, fig. 5. 
,, ,, Davidson, 1871, Mon. Brit. Sil. Brack., p. 331, pi. 49, figs. 23-26. 
Having given a very detailed description of this species in my Mono- 
graphie des Chonetes, I consider it needless to dilate upon its characters, 
