36 Messrs. Jones and Kirkby on Carboniferous Entomostraca. 



Staffordshire, in shale (J. Ward) ; in ironstone from the Coal- 

 measures near Dudley (Geol. Survey) ; from Chesterfield in 

 ironstone (Binney) ; from Babbington, Notts, in shale ; from 

 Shaley Brow, Rainford (Binney) ; from Glodwick, near Oldham 

 (Binney) ; from Agecroft Colliery, near Manchester (Binney) ; 

 from Ashby-de-la-Zouch (A. H. Green) ; from Eagley Shore, 

 Lancashire, and from Holcombe, Bradshaw, Cranbourke, and 

 Brow Peel in the same county ; from Granton (Harkness) ; from 

 Carluke (Rankine) ; and from the shales associated with the 

 Shotts Gas- and Furnace-Coals, Lanarkshire (Grossart). 



In the ' Memoirs of the Geological Survey,' illustrative of the 

 several sheets of the Geological Survey Map, are several refer- 

 ences to the occurrence of Bivalve Entomostraca in the Coal- 

 measures. Beyrichia arcuata is quoted as occurring in shales of 

 the Middle and Lower Coal-measures of Lancashire and of the 

 " Holcombe-Brook Series " (referred to the " Millstone-grit " by 

 the Surveyors) in the same district : Mem. Geol. Surv., " Geology 

 of the Country around Bolton-le-Moors," by Mr. E. Hull, 1862, 

 pages 33, 34, 40, &c. B. arcuata is also mentioned as belonging 

 to the Middle Coal-measures, near Wigan, in the ' Geology of 

 the Country near Wigan,' 2nd edit. 1862, Appendix*, by Mr. 

 Salter, pp. 36 and 38, and is figured in a woodcut at p. 37 

 (fig. 2, 5). 



1836. Phillips and Williamson, — In 1836 Professor J. Phillips 

 (Brit. Assoc. Report, 1841, Sections, p. 64) and Professor W. 

 C. Williamson (Phil. Mag. new series, vol. ix. p. 351) dis- 

 covered numerous small Entomostraca in the Upper Coal-mea- 

 sures at Ardwick, near Manchester (see ' Monograph Foss. 

 Estherise,' Pal. Soc. p. 118). Excepting a few specimens of 

 Leaia, these Entomostraca were referred to as Cyprides, and 

 are possibly the same as Cypris inflata of Murchison, which is 

 found in the uppermost Coal-measures of Shropshire. 



1839. Murchison and Sowerby. — In 1839 Sir Roderick Mur- 

 chison and Mr. J. de C. Sowerby described and figured a small 

 Bivalve Entomostracan (obtained by the former from the Upper 

 Coal-measures of Shropshire) as Cypris inflata, in the ' Silurian 

 System,' p. 84, woodcuts figs, A 1, A 2, A 3, which figures were 

 repeated in 'Siluria,' 1st and 2nd editions (2nd edit, 1859, 

 p, 322, fig. 83), and have been copied in other works on geo- 

 logy. These illustrations are really those of a small gibbous 

 Leperditia, — with a straight back, strong dorsal angles, and con- 

 vex ventral margin. In the ' Silurian System,' p. 84, it is 



* In this Appendix, p, 37, fig, 2, *, is figured anofher Beyrichia (under 

 the name of " B. Binneyuna, Jones"), which is B.subarcuata, Jones, Pal. 

 Soc. 1862, Monogr, Foss. Esth. p. 120, pi. 5. fig, 16, The name " B. 

 Binneyana " was intended for a different form as yet unpublished. 



