160 Recent Discoveries of Fossil Fishesin  [February, 
sented in Pander’s restoration, are also well seen in two.of Mr, 
Foord’s specimens, though in these they are directed forwards as_ 
well as outwards, whereas in Pander’s figures they are depicted 
as though they were bent backwards. a 
2. Diplacantius, sp. undt—An apparently undescribed spe- 
cies, of which only a few imperfect examples have been collected. 
It appears to be remarkable chiefly for the comparatively small 
size of its fin spines in proportion to that of the head and body, 
3. Acanthodes mitchelli? Egerton —Ten or twelve specimens of 
a diminutive acanthodean which seem to be barely distinguish- 
able from the Scotch species named above. The largest perfect” 
individual is not more than an inch and three-quarters in length, — 
and the scales, when examined under the microscope, are seen to — 
be perfectly smooth. 
4. Phaneropleuron curtum—This remarkable genus was first” 
described by Professor Huxley, in 1871, in the tenth decade of 
organic remains issued by the Geological Survey of Great Britain. | f 
Its principal characters are as follows: scales thin, cycloidal, dor 
sal fin extremely long, single and confluent with the upper lobe 
of the tail, pectorals and ventrals acutely lobate, jaws armed with» | 
a single series of short conical teeth, vertebral centers not ossified 
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The only species previously known was the P. andersoni of Hux 
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an individual found by Mr. Foord at the same locality in 1881" 
fifteen inches long. 2. 
Professor Cope has shown that of all the Devonian fishes, Phan® 
ropleuron comes nearest to the living Ceratodus forsteri, of Queens 
land, both in its internal and external characters, but the dentitio? 
of Phaneropleuron was only partially known, Last summer MF 
Foord was fortunate enough to obtain specimens, showing that® 
addition to the simple conical teeth with which the dentary bom 
is armed, the Canadian species is furnished with triangular palatt 
