T. C. Cantrili—Stratigraphical Note. 537 
Cephalopods, and Graptolites are very rare, the two latter groups being 
represented only by two or three specimens in the whole collection. 
Lamellibranchs are numerous in peculiar species, but not in individuals. 
Trilobites are not common, but of them <Acidaspis and Phacops occur 
most frequently. 
[| Note.—In the sequence given by Mr. Cantrill, his Beds 1, 2, 3, 
and 4 correspond to my ‘St. Martin’s Beds”; see p. 538. ] 
LIST OF FOSSILS FROM THE ST. MARTIN’S MUDSTONE. 
Phacops mucronatus, Brong. C. sp. 
Ph. sp. Meristella cf. crassa, Sow. 
Cyphaspis megalops, McCoy. Atrypa imbricata, Sow. (cf. flexuosa, 
Acidaspis sladensis, Reed. Marr & Nicholson). 
A. sp. Orthis elegantula, var. 
Lichas (Corydocephalus) sp. O. ct. Edgelliana, Salt. 
L. ch. laciniatus, Dalm. ? O. porcata, McCoy, var. sladensis, Reed. 
Turrilepas sp. O. vespertilio, Sow., var. ? 
Cornulites scalariformis, Vine. O. aft. Bouchardi, Day. 
Tentaculites sp. O. sp. ind. 
Orthoceras cf. gracile, Portl. Strophomena siluriana, Dav. 
Bellerophon ct. acutus, Sow. S. siluriana, var. 
Cyrtolites sp. S. sp. 
Hyolithes sp. Leptena rhomboidalis, Wilck. 
Pleurotomaria (Clathrospira) sp. Scenidium Lewisi, Dav. 
P. (Liospira) sp. Crania Grayi, Dav., var. 
Holopella sp. Orbiculoidea perrugata, McCoy. 
Modiolopsis Martini, Reed. Lingula Symondsi, Sow. 
M. subgradata, Reed. L. ovata, McCoy ? 
M, 2 sp. ind. LZ. 2 sp. ind. 
Whitella (2) inutilis, Reed. A new Cystidean. 
Orthodesma semiradiata, Reed. Crinoid stem-joints. 
Goniophora ct. cymbeformis, Sow. ‘ Favosites’ fibrosus, Goldf. 
Area Turnbulli, Reed. Diplograptus ct. modestus, Juapw. 
Ctenodonta sladensis, Reed. (determined by Miss Elles). 
C. lingualis, Phill. 
TV.—SrraticrapuicaL Nore.’ 
By T. C. Canrrint, B.Sc. Lond., of the Geological Survey. 
'W\HE fossils which Mr. V. M. Turnbull has collected from supposed 
Slade Beds on the “‘ roadside near St. Martin’s Cemetery, Haver- 
fordwest,” were obtained along the north side of a road leading 
westward from St. Martin’s Cemetery to Portfield House, on the west 
side of the town. About half-way between the Cemetery and Port- 
field House the road is crossed by a by-road known as Jury Lane; 
one of the fossiliferous localities lies 110 yards east of Jury Lane 
crossing, another is 100 to 150 yards west of it. The area in question 
is contained in the Old Series one-inch Geological Survey map, 
Sheet 40, the New Series one-inch map, Sheet 228, and in the six-inch 
map, Pembrokeshire, Sheet 27 N.E. 
So long ago as 1885 Messrs. Marr & Roberts* worked out the 
general structure of the district, and showed that the town of 
1 Communicated by permission of the Director of H.M. Geological Survey. 
2 <«The Lower Paleozoic Rocks of the Neighbourhood of Haverfordwest” : 
Quart. Journ. Geol. Soc., vol. xli (1885), pp. 476-491. 
