18 SAN DIEGO SOCIETY OF NATURAL HISTORY 
This is the rather short and broad trilobite, with rounded cephalon and pygidium, 
which Clarke Geol. Pal., vol. 3, part 2, p. 708, referred to Isotelus susae. 
Cardot (H.) and Legendre (R.) Nouvelles traces d’autotomie chez 
des Crustaces fossiles. 
Bull. Mus., Paris, 1912, pp. 131-132. 
Carruthers (Willian). Note on some supposed fragments of a Hu- 
rypterus in Dr. Henry Woodward’s British Fossil Crustacea Merosto- 
mata. 
Mon. Palaeont. So., pp. 168-71. 
The author remarks that the specimens figured and described by Salter as portions 
of a Eurypterus, are fragments of a large Equisetaceous plant. 
Chapman (Frederick). On a new species of Leperditia from the 
Silurian of Yaas, New South Wales. 
Proc. Roy. Soc. Victoria, vol. 22, pp. 1-5, plates 1 and 2. 
Leperditia shearshii nov. 
New or little known Victorian Fossils in the National Museum, 
Part XIV. On some Silurian Trilobites. 
Proc. Roy. Soc. Victoria, vol. 24, 1912, pp. 293-300, plates 61-63. 
The author describes: 
Ampyx parvulus Forbes var. Jikaensis noy., A. yarraensis noy. Illaenus jutsont 
nov. The Victorian species differs in ornamentation of the glabella from I/laenus 
Davissi. It has a narrow and rounded median ridge, extending along the summit of 
the glabella, tapering off into a mere thread before reaching the anterior margin. 
Encrinurus (Cromus) spryi nov. Hlomalonotus vormer nov. 
New or little known Victorian Fossils in the National Museum, 
Part XVIII. Some Yeringian Trilobites. 
Proc. Roy. Soc. Victoria, vol. 28, 1915, pp. 157-171, plates 14-16. 
The author includes eleven species of Trilobites in this paper: 
Goldius greenii noy., which he compares with Bronteus oblongus Corda. Goldius 
Cresswelli nov. Proetus euryceps McCoy. Cyphaspis Browningensis Mitchell, C. Lily- 
dalensis nov. of the Cyphaspis Burmeisteri type, C. yassensis E. & M. Calymmene an- 
gustior nov. 
Compares C. tuherculosa and other species. 
The lateral riblets of the pygidium in C. angustior are furrowed or bifurcated dis- 
tally, but in C. tuberculosa they are simple. Calymmene Blumenbachi Brong. Refers 
C. duplicata (Murch.) Jenkins, 1879, p. 27, pl. 6, fig. 4, to this species. 
Cheirurus Sternberg: Boeck. Phacops Crossleti E. & M., P. serratus Foerste. 
Chevillard (J. L.) Trilobites du Devonien du Mount de la Revenue. 
Bull. Soc. Geol. de France, 2d ser., vol. 24, 1866-67, pp. 124-126. 
Not descriptive. 
The author remarks that Phacops laevis Munst. is very much like Phacops cryptoph- 
thalmus Emmrich. 
Chmielewski (Czeslaw). Die Leperditien der obersilurischen Gesehiebe 
des Gouvernement Kowno und der Proyinzen Ost und Westpreussen. 
Phys. 6konomischen Ges zu Koningsberg, 1900, 37 pp., 3 plates. 
