244 H. Etheridge, Jun. — Contributions to British Palceontology. 
obtusely rounded and inconspicuous ; in tke uncrushed condition 
tliere is probably a more or less blunt diagonal ridge. Omamen- 
tation consisting of concentric wrinkles and finer strijg between 
them ; on the anterior end there are traces of a furtker transverse 
wrinkling. 
Obs. — A. Pliillipsii was first noticed by Prof. W. C. William son, in 
tke second part of kis paper “On tke Limestones found in tke Yicinity 
of Manckester,” as a “ Unio of small size.” He adds : “ Tke skell 
varies cousiderably in size, being sometimes one inck and a kalf in 
lengtk, and at otkers not more tkan tkree-fourtks of an inck. Tke 
depressed and crusked state in wkick tkese fossils are found would 
indicate a skell of a tkin and fragile nature.” Tke skell was 
named Unio Pliillipsii in lionour of Dr. C. Pkillips of Manckester. 
In a letter from tke late Prof. Pkillips quoted by Sir R. I. Murckison 
in kis “ Silurian System,” tkis skell is spoken of as Unio lingui- 
formis, and a brief description is given. Mr. E. W. ßinney, F.R.S., 
obtained Anlhracomya Pliillipsii in red and greenisk mottled elays 
near tke junction of tke Coal-measures and New Eed Sandstone 
in tke Valley of tke River Medlock, near Manckester. He 
records it under tke name of Modiola sp., to wkick genus ke con- 
sidered tke uncrusked condition to bear tke greatest resemblance. 
I believe tke Catalogue of Fossils in tke Museum of Practical 
Geology to kave been tke first publication in whick Unio Pliillipsii 
was referred to tke genus Anthracomya, probably from a deter- 
mination of tke late Mr. J. W. Salter. Similarly, I tkink tke first, 
and perkaps only figure of tkis skell, wkick kas kitkerto appeared, is 
tkat given by my friend Prof. T. Rupert Jones, F.R.S., in kis paper 
“ On some Bivalve Entomostraca from tke Coal-measures of Soutk 
Wales.” 1 He tkere skows tke general resemblance in outward form 
borne by some Carboniferous Esther im to species of tke genus 
Anthracomya, and furtker suggests tke possibility of a small skell 
figured by Mr. Salter as a Modiola , 2 from tke Soutk Wales Coal- 
measures, being tke young of A. Pliillipsii. 
I kave been favoured by Prof. W. C. Williamson witk tke loan of 
an almost perfect, altkougk crusked, example of tkis species from 
Ardwick. and anotker similar specimen from Bradford by Mr. E. W. 
Binney. Tke latter is tke more transversely-obliquely-elongated of 
tke two. 
Horizon and Loc. — In “black bass ” of tke Upper Coal-measures, 
Ai'dwick, near Manckester, collected by and in tke Cabinet of Prof. 
W. C. Williamson, F.R.S. ; in dark skale of tke Coal-measures at 
Bradford, near Manckester, collected by and in tke Cabinet of Mr. 
E. W. Binney, F.R.S. A. Pliillipsii is also found at Longton and 
Opedale in Staffordskire. 3 
Anthracomya Scotica, sp. nov. Plate XII. Fig. 8. 
(Compare Naiadites ( Aulhracoptera ) leevis, Dawson, Acadian Geology, 2nd ed.i 
1 Geol. Mao. Vol. VIII. PI. IX. Fig. 3. 
2 Ivon Ores Great Biitain, 1861, pl. 2, f. 3. 
3 iluxley and Etheridge’ s Cut. Foss. Mus. Pract. Geology, 1865, p. 16 0. 
