13) SAN DIEGO SOCIETY OF NATURAL HISTORY 
The First Centuria has only $ plates and 100 figures accompanied by descriptions. 
The Second Centuria, consisting of plates 9-18, figures 101-248, was issued without 
text descriptions. 
Koenig gives the name of Belinurus bellulus to fig. 230, without a description of the 
new genus. 
Prestwichia anthrax and Belinurus lunatus from Sparth Bot- 
toms, Rochdale. 
Trans. Manchester Geol. Soc. vol. 29, 1904-1905, pp. 124-127, with 2 figures. 
The author figures Prestzichia anthrax described under the name of Limulus an- 
thrax by Prestwich in 1840, and refers to Belinurus lunatus Konig’s Belinurus bellulus. 
The author remarks, that it certainly is not a fossil insect, as indicated by Martin 
in Petrifacata Derbiensia, pl. 45, fig. 4, 1809. 
Bather (IF. A.) Harpes bucco. A new Silurian Trilobite from the 
Carnie Alps. 
Catania Rivista Italiana di Palwont., 1910, 7 pp., figure. 
The trivial name bucco alludes to the swollen cheek roll, which with its ornament — 
is so marked a character to the species. 
Barth (Hermann yon). Die Stellung der Trilobiten in Zoologischen 
Systeme. 
Das Ausland 26 Jahrg, 1875, p. 25. 
The author quotes Billings’s paper; also that of Dana on the feet of Trilobites, and 
refers to the discoveries of E. von Eichwald in Wesenberg in Estland, and in the 
Island Dago near Hohenholm. 
N. Jahrb fiir Mineral. and Geol. vol. 1, 1875. 
Barton (Donald C.) A new genus of the Cheiruridae with deserip- 
tions of some new species. 
Bull. Mus. Comp. Zoology, vol. LIV, No. 21, 1913, with one plate. 
The new genus Ceraurinus is like Cheirurus insignis Beyrich in size. 
The glabella is subrectangular or expanded only slightly. The posterior of the 3 
pairs of glabellar furrows are straight, about one-third the width of the glabella in 
length, and slope gently backwards. 
Their inner ends are connected with the neck furrows by curving constrictions, 
which are about parallel to the axis of the glabella. 
The constrictions are strong in some species and flat in others. 
The middle part of the axial portion of the neck furrow is parallel to the posterior 
edge of the neck segment. 
The eyes large. 
Thorax 11 segments, presumably. 
Pygidium only in (C. icarus Billings, three to four segments ending in six free spines 
of equal length. 
Type Ceraurinus marginatus sp. nov. 
The author includes in the genus C. icarus Billings, C. trentonensis, sp. nov., Cry- 
tometopus scofieldi Clarke, Cheirurus polydorus Billings, and C. pompilius Billings. 
He refers Ceraurus meekanus Miller, 1889, to C. icarus Billings. 
The paper ends with a fragment, described as Ceraurinus confluens, n. sp. 
—— A revision of the Cheiruninae with notes on their evolution. 
Washington Univ. Studies, vol. 3, part 1, No. 1, 1915. 
