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BIBLIOGRAPHY OF PALAOZOIC CRUSTACEA 41 
HALL (James)—Continued 
Preliminary notice of the Fauna of the Potsdam sandstone. 
with remarks upon previously known species of fossils and de- 
scriptions of some new ones from the sandstone of the Upper Mississippi 
Valley. 
Trans. Albany Institute, vol. 5, 1867, pp. 93-195, with six plates. 
A notice of this paper was read before the Albany Institute April 29, 1862, and by 
an arrangement between the Publishing Committee and the Regents of the University, 
it was published ir the 16th Report on the State Cabinet, pp. 119-226. The starred 
pages 135 and 136 were not issued in the Trans. Albany Inst. 
On page 193 of the Trans. Albany Inst., the text contains figures of Pemphigaspis 
bullata, also figures of Amphion ? matutina, Conocephalites (Arionellus) dorsalis and 
C. optatus, not republished in the text of the 16th Report N. Y. State Cabinet, but in- 
cluded in Plate V. A. except C. dorsalis. 
For list of fossil Crustacea, see 16th Report N. Y. State Cabinet, 1863; also Contri- 
butions to Paleontology from investigations made during the years 1861-1862. 
Harbort (E.) Ueber mitteldevonische Trilobitenarten im Tberger 
Kalk bei Grund im Harz. 
Zeitschr. Deutsch. Geol. Ges Bd., 55 Jahrg, 1903, pp. 474-485, 2 plates. 
Acidaspis pigra Barr. Cyphaspis ceratophthalma Goldf., C. convexa Barr. Bronteus 
granulatus Goldf., B. flabellifer Goldt. Harpes cf. socialis Barr., H. convexus Trenkn. 
Haynes (Winthrop P.) Discovery of bivalve Crustacea in the coal 
measures near Pawtucket, R. I. 
Science N. S., vol. 37, No. 944, pp. 191-192, 1913. 
The author records the discovery of the carapaces of bivalve Crustacea of the genus 
Leaia and Estheria from the Narragansett Basin coal measures, which the author com- 
pares with Leaia tricarinata Meek and Estheria not suthciently well preserved to de- 
termine. 
Henderson (John). Short notices of three species of Trilobites from 
Silurian Beds of the Pentland Hills. 
Trans. Edinburgh Geol. Soc., vol. 1, pt. 1, 1868, pp. 21-23. 
The author mentions Phacops Stokesii and Calymmene Blumenbachii. He remarks 
that the species described as Encrinurus expansus by Haswell, in his Geology of the 
Pentland Hills, must not have been perfect, as he omitted any description of the free 
cheeks or facial suture. The author refers the Zethus Pageii Haswell to the free cheek 
of Encrinurus expansus. This species is broadly ovate, length about one and one- 
fourth of an inch; breadth two-thirds of the length, cephalic shield, semi-circular 
tuberculated posterior angles rounded; the glabella pear-shaped, convex, and covered 
with tubercles, and punctured between the tubercles; large tubercles, occupying the 
place of lateral lobes; cheeks triangular convex and embracing the front of the glabella; 
eyes pedunculated and placed between the centre of the cheek; and the glabella obovate 
and covered with a fine net work of facets. 
Notice of Silimonia acuminata from the Silurian of the Pent- 
land Hills. 
Trans. Edinburgh Geol. Soc., vol. 1, 1870, pp. 18-19. 
On some recently discovered fossiliferis beds in the Silurian 
rocks of the Pentland Hills. 
Trans. Edinburgh Geol. Soc., vol. 3, 1880, pp. 353-356. 
