eA eee eile: 
Page. 
PEINDOGERASEPROTEIROR MER teenies datsaee somata tisctis hes eee clo cocissicowaewises soninocleaeno<istere 86 
Fig. 1. View of siphunele with included tube. 
la. Cross-section of another specimen. 
1c. Opposite side of upper portion of fig. 1, -howing annulated shell of the siphuncle. 
FORTHOGMRAS) SP staece cece sic cer aa ee Sen onaeR ee anak tered ee oes Seu wct oceans cetutes cebewe 87 
Fig. 1b. Oblique, transverse section. The outer shell is restored and is too small, aud it is 
also less circular in outline. The fragment crossing the siphuncle is of acci- 
dental origin. 
LOR DHOCERASWADot oases e ais cine smclat oe ee ccine cee cere ieee eee tic nesses ete ceric sews seers 86 
Fig. 2. A portion of the shell, preserving a number of the septa and a portion of the 
siphuncle. 
FORTHOCERASHMULTI CAMRA TUM? = 222-05 sone lees ssenietien ce nec eciei ew c= ieee ees ieee ee tee 86 
Fig. 3. Fragment showing the form of the tube, the septa, and a portion of the siphuncle. 
ETON UR US ee URE REN GIS tsetse eens seen eco eae eeeteeae aaaeeete cise eels este tae ae eee peas 97 
Fig. 4. View of the central portion of the head and outline of the convexity of the same, 
enlarged to two diameters. 
4a. Associated free cheek. 
TBARRANDUAUT IMG © OMiae elite) ctereia two cniels ioiwiciaieieo cetecloee casts ats leiaia'e folie s pbs eeiticlec se cefceclea cs 96 
Fig. 5. View of the glabella and fixed cheeks, and a longitudinal outline of the convexity 
of the head, enlarged to two diameters. 
JU NEPASIDIN (Es Ul 2sen occsceesedso se eho case sa rec S50 Oson on oops SHaecoc SobeDoneSbo Hose SSonene 96 
Fig. 6. View of the glabella. Natural size. 
BAS APH USE CARTE OUEN SIS oss 'ciniere niet estates mister e eee ataeiniat oleisiset te Sela oieteteinint= micietcl<)ai= = sie ele te / 98 
Fig. 7. View of the head within the facial sutures, also outline of longitudinal section. 
7a. An associated free cheek. 
7b. Pygidium found in the same association. 
EP AEVURUS te CONGENE RIB ee aps seta cisines isle siecincieematemelesnc as oe <ielseeinioesclccice/scicieesiccice seer 92 
Fig. 8. View of glabella and fixed cheeks, enlarged to two diameters. 
8a. Pygidium associated in the same layer of rock. 
DATHYVURUSEDUBERCULATUS! = scccie csc leeric~ se riscwieciasiesenioe - << Ssooncigacoeducned suas cboane 91 
Fig. 9. View of the glabella and a portion of the fixed cheeks, enlarged to two diameters, 
SC MPHASPISHIBREVIMARGINATAS cc< cone so cess cs seus ce sniseas cece oe tclcecseacccesucesesses aces 93 
Fig. 10. Enlargement to three diameters of the only specimen discovered. 
DACORUM GM RUM LIMU = se veecinee sale ae eeetseeceetatene cscs ssc ciceccicace scnciescsccccchsessce 93 
Fig. 11. Enlargement to three diameters, to show the character of the glabella and frontal 
margin. 
