158 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



siderable quantity of linie, and in parts is very rich 

 in many of the larger Silurian fossils. The sample 

 gathered for microscopical examination was taken 

 from the rotted cavities in the face of the cliff, and 

 when washed left a large quantity of quartz-grains 

 and white mica, a few scales of brown mica and 

 some small calcite masses. The organic remains 

 consisted of two spirals, one bivalve, numerous 

 conodonts, minute dermal parts of fishes? and a 

 few small joints of Crinoids. 



Scottish Silurian Entomostbaca. 



The following Entomostraca have been recorded 

 from the Silurian strata of Scotland: 



Beyrichia comma, Jones. — Thrave, Girvan. 

 B. im.pendens, J. — Girvan, and Pentland Hills. 

 B. Kloedeni, M'Coy. — Girvan, and Muirkirk. 



B. Kloedeni var. scotica, J. — Girvan. 



Cy there Aldensis, M'Coy. — Aldons, Girvan. 



C. Aldensis var. major, J. — Girvan. 

 C Grayana, J.— Girvan. 



C Wrightiana, J. and H. — Girvan. 



PriTnitia Barrandiana, J. — Girvan. 



Entomis tuberosa, J. — Pentlands. 



E. Hasuelliana, J. — Pentlands. 



E. glohulosa, J. — Girvan, and Pentlands. 



E. impendens, H. — Pentlands. 



Bolhozoe scotica, J. — Pentlands. 

 See Geological Survey of Scotland, Explan. to Sheets 

 3 and 23 ; Annals and Magazine of Natural History, 

 for 1884 and 1886 ; Nicholson and Etheridge's Mono- 

 graph oj Girvan Silurian Fossils, Fas. II., 1879. 



(SEE ABSTRACT). 



