160 SUPPLEMENTARY INDEX TO VOL. IV. 
Limestone Shale, or great Shale, local!y imbedding Gritstone and Shale 
Limestone, and thin Coals. (Derby Report I. p) 227.) 
Productus concinnus t. 318, f. 1. Derbyshire, Richmond 
(York), and Well-houses 
Farm. 
lobatus tt, 318, f. 2 to 5. Arran-Isle, Derbyshire, 
and Well-houses Farm. 
Martini ^3 317, f. 4. Barnev-River. 
Derbyshire-Peak Limestone; Under-coal, Metaliterous, Basaltic, or 
Mountain* limestone: Bristol, Much-Wenlock, Halkin, Aldstone, 
Kendal, 5fc. ( purple blue No. 31.) 
Productus antiquatus 317, f. 1 5^*6, Cloghran, Derbyshire, and 
Monvash. 
comoides 329, Llangefni S. 
giganteus 320, Bakewell, W. Buxton W 
(1st), and Yorkshire. 
hemisphaericus ...328, Mynydd-careg W T ales. 
latissimus 330, Puffin-Isle, and Tyddyn- 
mawr Farm. 
Martini a .317, f. 2 and 3. Ashford (shale), Bakewell, 
(1st), Croom-hill (4th), 
King’s-county, Limerick 
county, and Sutton. 
personatus 321, Derbyshire, and Kendal. 
punctatus...... 323, Black-Rock Cork, Buxton, 
and Chelmerton E. (3rd.) 
sulcatus 319, f. 2. Derbyshire. 
Spinier ambiguus ............... 376, Bakewell (shale) 1 | m. W. 
minimus 377, f. 1. Bakewell, do. 
Tfetebratula acuminata 324, f. 1. Bakewell (1st), Blackrock 
Cork, Brassington (3rd), 
Buxton, Scalebar, and 
Thorpe, (4th). 
affinis ..... 324, f. 2. Dudley N., and Malvern 
Hills, W.CHorncastle dilq.) 
? imbricata 334, f. 3 £f 4. Castleton, and Settle. 
? lineata 334, f. 1 4’ 2. Castleton, and Hope. 
resupinata, oc ... 325, Dove-dale (4th), Hucklow 
(1st), Stoney-Middle- 
ton (1st), and Tide- 
swell (3rd). 
Old-red Sandstone, occurring rarely. 
IV. SUBMEDIA L Order of Strata. 
Coarse-Slate, Steaschist, Roofing-Slates, slaty Limestone, &c. 
V. INFERIOR Order of Strata. 
Mica-Slate, Gneiss, Granite, Sfc. 
Unknown Strata, of vastly greater specific gravity than Granite . 
Note: I have been unable to place in the above List, Patella striata, f& 
t. 389, for want of stratigraphical information : the same happened 
in previous volumes, as to Shells from Colomby, Golleville, and 
Valognes, all probably situated on the same strata as Hautevilie, in 
the Medial order of Strata? 
*This Rock would, with propriety be denominated the Valley Lime- 
stone of the Irish Bog-Districts; it sometimes forms Iiills, but rarely if 
ever, is found in Mountains. 
