46 The American Geologist. Jannary, i90(j 
Metadoxides magnificus Matthew ? 
Metadoxides magnificus Matthew, Bull. Nat. Hist. Soc. X. Bruns- 
wick, No. XVII, p. 137, pi. Ill, 1898. 
It seems certain that there is present in the locality a large 
trilobite, differing from those described in bearing very long 
genal spines. Nothing except the spines has been recog- 
nized, although it is thought that some head fragments may 
belong to the same form. In all twelve specimens of such 
opines have been found. Of these, the longest fragment has 
a length of 46.5 m m. The largest of the spines is a frag- 
ment 42.5 m m. in length, 1 1 m m. in maximum width and 
9 m m. at its smaller end. This spine is flattened but still re- 
tains a thickness of 3 m m. All of the specimens show the 
diagonal raised lines slanting backward toward the inner mar- 
gin, as figured by Matthew^ (Trans. Roy. Soc. Canada, Second 
series, \o\. v, sec. iv, pi. viii, fig. le.). These fragments are 
doubtfully referred to the above form. 
Agraulus (Sirenuella) strenuus Billings sp. van. nasutus Walcott. 
Agraulus strenuus Billings, 1874. Geol. Sur. Canada, PalKOzoic 
Foss. vol. II, pt. I, pp. 71-72. 
Agraulus strenuus Billings sp. var nasutus Walcott. (Loc. cit., p. 654 
Also pi. XCVII,fig. 2.) 
This is perhaps the most abundant form occuring in this 
locality. Thirty-seven individuals have thus far been identi- 
fied. In all but one case the heads alone are preserved. One 
specimen, however, shows the greater part of both head and 
thorax. The total length of this specimen is 14.5 m m. The 
length of the head alone is 5 m m. and its greatest width is 
9.5 m m. The specimen is not sufficiently well preserved to 
render these measurements absolutely reliable. In all, thir- 
teen thoracic segments are shown. 
Several of the heads show the extended frontal limb char- 
acteristic of this variety. In a number of cases the posterior 
projection is indicated, although in no case is it complete. 
The heads are generally of uniform size. One of the best 
heads, of this average size, has a length of 6 m m. without 
the posterior projection, and a maximum width, not includ- 
ing the free cheeks, of 8 m m. The glabella, without the pro- 
jection, has a length of 4.6 m m. and a maximum width of 
3.1 m m. The eyelobes are 2.5 m m. in length. Several of 
