CLADOBOSTIDiE. 
17 
1883. Cladodus mirahilis, J. W. Davis, Trans. Roy. Dublin Soc. [2] 
vol. i. p.'372, pi. xlii. figs. 1-5. 
188.3. Cladodm destructor, J. W. Davis, tom. cit. p. 376, pi. xlix. 
fig. 16. 
1883. Cladodm milleri, J. AV. Davis, tom. dt. p. 378, pi. xlix. fig. 16. 
1883. Cladodus mucronatus, J. W. Davis, torn. cit. p. 380, pi. xlix. 
fig. 21. 
188.3. Cladodm hasalis, J. W. Davis, tom. cit. p. 379, pi. xlix. fig. IS. 
1884. Cladodm mucronatus, J. W. Davis, Quart. Joum. Geol. Soc. 
vol. xl. p. 619, pi. xxvii. fig. 10. 
1888. Cladodus mirMlis, R. H. Traquair, Geol. Mag. [3] vol. v. p. 81. 
Type. Detached teeth : Geological Society of London. 
Teeth very robust, the crown consisting of a median principal 
cone, and two or three large lateral cones on each side. The cones 
are very slightly compressed, though with sharp lateral edges to- 
wards the apex, which is acute ; all are marked from the base up- 
wards throughout the greater portion of their length with delicate 
longitudinal stri®. The summits of the cones are slightly inclined 
backwards, and those of the extreme lateral pair also outwards. 
Form. ^ hoc. Lower Carboniferous Limestone: Armagh and 
Wexford, Ireland; Somersetshire, Shropshire, and Derbyshire, 
England. Upper Carboniferous Limestone (Yoredale Rocks) : Derby- 
shire and Yorkshire, England. Lower Carboniferous : Government 
of Toula, Russia. 
P. 2925-9. Five specimens, figured hy J. W. Davis, Trans. Roy. 
Dublin Soc. [2] vol. i. pi. xlix. figs. 1-5 ; Armagh and 
Tynan. Ennisl-illen Coll. 
P. 2938. Type specimen of C. destructor, Davis ; Armagh. As 
noted by R. H. Traquair, this is almost certainly a frag- 
ment of a large tooth of C. mirahilis. Enniskillen Coll. 
P. 2930. Eighteen teeth ; Armagh. Four are small, resembling 
the so-called C. hasalis. EhiniskUlen Coll. 
P. 2937. Very large tooth, much crushed; Armagh. 
Enniskillen Coll. 
P. 1317. Two small broken teeth ; Armagh. Egerton Coll. 
P. 1318. Small abraded tooth, showing a minute cusp beyond the 
ordinarily outermost lateral cone ; Hook Point, Wexford. 
Egerton Coll. 
34972. Imperfect tooth from the “ Black Rock,” Bristol, similar to 
the type specimen of C. rralleri preserved in the Bristol 
Museum. The characters of the coronal stri® appear to 
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