BIBLIOGRAPHY OF PAL.BEOZOIC CRUSTACEA 31 
The author illustrates Triarthrus Becki in text and plate 8, fig. 9. The figure brings 
out the outline of the trilobite and several appendages which are buried in the matrix. 
Finch (Grant E.) Notes on the position of the individuals in a group 
of Nileus vigilans found at Elgin, Towa. 
Iowa Acad. Sci. Proc., vol. 11, pp. 179-181, plate, 1904. 
Foerste (A. I.) Notes on Clinton Group Fossils, with special ref- 
erence to collection from Indiana, Tennessee and Georgia. 
Proc. Boston Soc. Nat. Hist., vol. 24, 1889, p. 261. 
The author notes Calymmene Blumenbachu var. Vogdesi n. var., C. rostrata Vogdes. 
Dr. Ulrich describes from the Niagara formation at Osgood, Ind., under the name of 
Calymmene nasuta n. sp., a snouted trilobite of a very large size, which resembles 
Calymmene Niagarensis Hall. This specimen was published in the Jour. Cincinnati 
Soc. Nat. Hist., vol. 2, No. 3, October, 1879, p. 131, figs. 1, 2 and 3. The Harvard Li- 
brary did not receive this number until Feb. 19th, 1880, or about the time of its probable 
publication. About this time, in the Amer. Jour. Sci. for December, 1879, a species was 
described by Vogdes as Calymmene rostrata from the Clinton Group of Georgia Catoosa 
Station. These forms are very closely related to New York specimens, which are not 
quite so large, and the end of the snout is not so pointed as the published figures would 
indicate. 
Dr. Berjoron, Bull. Soc. Geol. de France, 3d ser., vol. xviii, 1890, p. 365, pl. v, places 
similar species under a new genus. Describing under it Calymmenella Boisseli n. sp. and 
n. genus. The glabella is short and rounded in front, having three furrows, of which 
the last two are well marked. The specimen is somewhat like Calymmene mammillata 
Hall, from the Niagara group in Wisconsin. 
The author also notes I/laenus ambiguus Foerste, I. ioxus Hall. Phacops pulchellus 
Foerste. Encrinurus punctatus Wahl. Lichas Boltoni var. occidentalis ? Hall and 
Cyphaspis clintoni n. sp. 
The author, on p. 272, places Encrinurus ornatus Hall with EF. Theschi Foerste. He 
was in doubt regarding the Ohio specimen referred by Hall and Whitfield to E. 
ornatus, on account of its larger size and its higher geological position. 
A description of the Trilobites, Mollusks and Brachiopods of 
the Clinton Group of Ohio and Indiana. 
Geology of Ohio, vol. vii, 1893, pp. 522-601, plates 25-37a. 
The author notes 4cidaspis Ortoni Foerste, 4. brevispinosa n. sp. Proetus determinatus 
Foerste. Cyphaspis clintonensis Foerste. Illaenus daytonensis H. and W., I. ambiguus 
Foerste, 7. insignis Hall, I. madisonensis Whitt. Calymmene Vogdesi Foerste. Ceraurus 
(Pseudosphaerxochus) clintoni n. sp. Sphaerexochus pisum n. sp. Lichas breviceps 
Hall. Phacops trisulcatus Hall. Dalmanites Wertheri. Encrinurus punctatus Wald. 
Elpe Ulrichi nz sp. 
Characteristic Silurian Fossils from East Central Kentucky. 
Geol. Sur. Kentucky Bulletin, No. 7, 1906, Part 3. 
The author describes Isochilina panolensis, Beyrichia lata-triplicata. He also re- 
marks that Prof. Hall, in Paleontology of New York, vol. 2, p. 301, published descrip- 
tions of a species of Bollia and of a species of Beyrichia under the same name Bey- 
richia lata, erroneously regarding these distinct species as opposite valves of the same 
species. Beyrichia is described first, but on Plate A 66 the Bollia is figured first. 
The author refers to Bollia lata Hall’s fig. 10b, and to Beyrichia lata Hall’s figs. 10 
c, d, e, pl. A 66. 
