ON THE FOSSIL PHYLLOPODA OF THE PALZOZOICG ROCKS. 405 
characters and alliance. On one or other of these three individuals there 
are characteristic anterior and posterior denticules or spines, and longi- 
tudinal ridges and foldings, such as are common in the group. Combining 
the evidences given by these specimens, although somewhat obscure on 
account of imperfections, distortion, and imbedment, we conclude that 
they are the relics of a bivalved Phyllopod, and we name it Lebescontia 
cenigmatica, J. and W. 
2. Subsequently from among the Carboniferous fossils of Linn Dalry, 
collected by Mr. John Smith, of Kilwinning, we have seen two counter- 
parts of one valve, corresponding in general characters with Lebescontia. 
It is figured and described by Jones and Woodward in the Monograph of 
Paloz. Phyllop. Pal. Soc., for 1899, as LZ. occulta. 
§ X. 1899.—Related to Cyclus, which is a Phyllopod, a new genus 
Hibbertia has been established by Jones and Woodward, on a specimen 
long ago collected from the Lower Carboniferous series at Burdiehouse, 
Scotland. This has a nearly circular shield-like test, with a slight kink 
or crumple in front, and a concave hollow behind, about as wide as a third 
of the test. This indentation lies between the postero-ventral angles of 
the shield ; and the median space above it is occupied by the obscured 
débris of the animal. The outer edge of the test shows an upturned 
narrow rim ; and the sides of the buckler are much tuberculated, includ- 
ing the inner edges of its incurved posterior angles. Faint traces of some 
probably articulate limbs are discernible. It is concluded that this little 
fossil is related to Cyclus, but characteristic of a distinct genus, which is 
named Hibbertia, after Dr. Hibbert, whose discoveries in the Carboniferous 
strata at Burdiehouse are well known. ‘Geol. Mag.,’ September 1899, 
p. 390, pl. 15, fig. 4. 
§ XI. 1899.—One of the two specimens of the rare Lchinocaris 
Whidbornei recorded in the ‘Thirteenth Report,’ p. 346, is figured and 
redescribed in the ‘ Geol. Mag.,’ September 1899, p. 393, pl. 15, “fig. 6. 
Registration of Type Specimens of British Fossils.—Report of the 
Committee, consisting of Dr. H. Woopwarp (Chairman), Rev. G. 
F. Warpporne, Mr. R. Kinston, Professor H. G. SEELEY, Mr. 
H. Woops, and Mr. A. S. Woopwarp (Secretary). 
Durine the past year only one list of type specimens of British fossils has 
been published, namely, Mr. Bather’s List of the Blastoidea in the British 
Museum. This is the second list of types issued by the Trustees of the 
British Museum, the Fossil Cephalopoda having been similarly treated in 
1898. The list of type specimens in the Brodie Collection, prepared for 
the Committee by the late Rev. P. B. Brodie himself, has been lent to the 
Department of Geology, British Museum, and has been found of much 
value in identifying these fossils, which are now incorporated in the 
National Collection. 
