LIST OF PLATES. 
»* Tbe numbers on the left hand indicate the figures on the plates, and those on the right refer to the pages containing the detailed 
PLATE; 1: 
1 Scolithus linearis ....... 2 
2, Lingula primajciceisjecs 6 c28 
— ANUIQUA cis /sjeisjer0 nd 
PLATE 2. 
“a if } Palzophycus tubularis, 7 
3 — irregularis .....°. 8 
6 Buthotrephis antiquata.. 8 
PLATE 3. 
1 Evomphalus uniangulatus, 9 
2 Maclurea sordida..,..,.. 10 
3 — matutina ...... 10 
4,5 Ophileta levata........ 11 
6 _ complanata..... 11 
7 Turbo dilucula ......... 12 
8 Turbo? obscura ........ 12 
9,10 Pleurotomaria? turgida, 12 
11 Orthoceras primigenium. 13 
12 — laqueatum ..... 13 
PLATE 4. 
1 Retepora incepta........ 15 
2 — gracilis ..5¢.... 15 
3 Gorgenia aspera .....6.. 16 
4 Stictopora fenestrata..... 16 
5 = glomerata . ... 17 
6 Streptoplasma expansa .- 17 
7 Chetetes (indet.) ..... 18 
8,9 Actinocrinites tenuiradiatus, 18 
10 Actinocrinus? (sp. indet.) 18 
11 Asterias? (sp. indet.) .... 18 
PLATE 4 (bis). 
Leptena plicifera....... 19 
2 — incrassata ..... pe ity) 
—_— fasciata’ <.ceis.e sie) 20 
ro 
oo 
descriptions of the several specimens. 
Fic. d Pac. 
PLATE 4 (bis). 
4 Orthis costalis .......-.- 20 
5 Atrypa dubia.......... © 21 
6 —_ acutirostra ..... 21 
7 _ Plenasitveigat : veal! 
8 _— plicifera, -t6'. 22 
9 —_— altilis erie... 23 
10 Orbicula? deformata... 23 
11 Metoptoma? dubia...... 23 
12 Illenus arcturus ........ 23 
13 _ crassicauda?.... 24 
14 Asaphus? obtusus ..... 24 
15 _— marginalis..... 24 
16 Isotelus gigas? ...... .. 25 
17, 18, 19 Isotelus canalis ... 25 
20 Ceraurus? (indet.)..... ieee 
PLATE 5. 
1 Maclurea magna.. ..... 26 
Puare 5 (bis). 
1 Maclurea magna........ 26 
PLATE 6. 
1 Scalites angulatus ...... 27 
2 Raphistoma striata..... mms 
3a,b — _ planistria..... 30 
3¢,d — — var. parva, 30 
LNs) — staminea..%... «2229 
6 Pleurotomaria biangulata, 31 
7 Murchisonia abbreviata., 32 
8 Pleurotomaria (sp indet.) 81 
9 Capulus auriformis..... : 
10° ‘Bucania’sulcatina’ 's/.. 2-32 
ll —_— rotundatase.ce. 33 
Phare 7. 
1 Pleurotomaria antiquata.. 31 
2  Orthoceras rectiannulatum, 34 
Fic. Pac. 
PEATE 7. 
3 Orthoceras subarcuatum . 34 
4 _ bilineatum ... 35 
5 — moniliforme.... 35 
6 — tenuiseptum.... 35 
PLATE 38. 
1 Phytopsis tubulosum .... 38 
PLATE 9. 
1 Phytopsis cellulusum.... 39 
PLATE 10. 
1 Modiola? obtusa........ 40 
2 Murchisonia? angustata. 4! 
3 —_ ventricosa.....- 41 
4 = perangulata. . 41 
5+. Naticareaee set erctieccte 42 
6 Pleurotomaria? nucleolata, 42 
7 Murchisonia? varicosa .. 42 
8 Pleurotomaria quadricarinata, 43 
9 — umbilicata ..... 33 
10 —? nogdulosa....... 44 
11 —? -obsoleta ....... 44 
12 Cytherina (sp, indet.)... 44 
PLATE 11. 
1 Orthoceras multicameratum, 45 
a = recticameratum, 46 
PLATE 12. 
1 Columnaria alveolata.... 47 
2 Stromatocerium rugosum, 48 
3, 5 Chetetes lycoperdon?.. 48 
4 Streptoplasma profunda.. 49 
6, 7 Stictopora ramosa ...... 51 
8 — labyrinthica ... 50 
9 Crinoidal columns ...... 5h 
