6 
Dr. Thomas Davidson—Scottish Silurian Brachiopoda. 
SCOTTISH UPPER AND LOWER SILURIAN BRACHIOPODA. 
Genera and Species. 
| Wenlock. 
TRETENTERATA. 
Lingula Lewisiz, Sow. 
Sysmondi, Saltenreer 
», ata, Sow. 
»> minima, Sow. 
attenuata, SOW.......... 
ss ovata, M‘Coy? 
a Ww OPEUsSS ROTH Ocliet yee. - 
Canadensis, Billings...... 
guadrata, Eichwald...... oil ese 
TOUESAV EMSA WeGE te ol eelt eee 
granulata, Phillips 
Or be alien Lorbesiz, Davy. 
PUA FULT SOW sec hancc ects +2: 
Portlock, Geinitz 
perrugata, M‘Coy 
oblongata, Portlock 
crassa, Hall 
? Pallas Davats: 
Pholidops (Crania)implicata, Sow. 
Crania Siluriana, Dav..........--- K 
Obolella sagittalis, Salter 
Acrotreta Nicholsont, Dav. ...... 
SMU. COSiaLa. Wave eee 
Stphonotreta Scotica, Dav.......... 
nucula, M‘Coy 
99 
Paice pay thd | Ludlow. 
eee eee sees 
39 
esoee 
39 
39 
29 
99 
CLISTENTERATA. 
Spirtfera plicatella, var. radiata, 
SOW ce satcah tere kl eee 
»,  ¢rispa, Hisinger 
Cyrtia exporrecta, Wahl...... ..... 
Nucleospira pisum, Sow............ 
Whitfieldia tumida, Dal.. seid) Pa 
Meristella? Maclar Cit, Haswell. 
»  ¢ angustifrons, M‘Coy .. 
LALLY IIS ASS RR EE ete 
Glassia compressa, SOW. ......0005- 
»,  obovata, Sow. 
Atrypa reticularis, Linné 
wmbricata, Sow. 
»  § Scotica, M‘Coy 
Merista ? cymbula, Day. 
Triplesia? Grayi, Dav. . 
? spiriferoides, M Coy ... 
? monolifera, M‘Coy 
tae eS LUECET EE, AD AN. Oe eee eke 
Leptocelia hemispherica, Sow. 
Lentamerus oblongus, Sow. 
globosus, Sow. 
undatus, Sow. 
Raleatus, SOW. .....0.c000s 
rotundatus, Sow. .. s 
? Shallockiensis, Dav. .. 
see cco see 
99 
eee ewe eee 
9) 
BOT Legit -date se oO 9 ON UY ec 0.0) 69 0's eieseia 
99 8 | ERTIES EMI Gg MIVI We ceoeessaerea-0 
39 
99 
29 
| Llandovery. 
ae 
i to Be 
Caradoc. 
rage 
| Llandeilo. 
rat fal bs Ext pd Esto 
mM OM OM 
* 
op: 
Scottish Counties where 
found. 
Midlothian. 
Midlothian, Ayrshire. 
Midlothian. 
Lanarkshire. 
Ayrshire, Peeblesshire. 
Ayrshire. 
Ayrshire, Dumfriesshire 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Midlothian, Ayrshire. 
Ayrshire. 
Dumfriesshire. 
Ayrshire, Peeblesshire. 
| Ayrshire, Dumfriesshire 
Ayrshire, Dumfriesshire 
Ayrshire. 
| Midlothian, Ayrshire. 
Ayrshire, Midlothian. 
Dumfriesshire. 
| Ayrshire, Dumfriesshire 
Ayrshire. 
Ayrshire. ; 
Ayrshire, Dumfriesshire 
Ayrshire. 
Midlothian. 
Midlothian, Ayrshire. 
Midlothian, Ayrshire. 
Midlothian, Ayrshire. 
Midlothian. 
Ayrshire. 
Ayrshire. 
Midlothian. 
Ayrshire. 
Midlothian, Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire, 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire. 
Ayrshire. 
