267 
is slightly swollen in the anterior one-third on the convex side, 
thence gradually tapering to each end; the convex side is not so 
arched as in C. acuminatus, whilst in contrast with C. infans, in 
which the shell tapers from its greatest diameter, the shell cf C. 
acuminatus has an almost uniform diameter throughout, until 
very near the extremities a slight decrease in diameter is 
observable. Apertures circular and their margins acute. 
Length.—3:2 mills. 
Miocene.—Muppy CREEK (one ex.). 
INDEX TO SCAPHOPODA. 
[The names of genera or subgenera are printed in small capitals; those 
of valid species in Roman type; all synonynis in italic type. ] 
Page. 
Acriculum, J'ate (Dentalium) o23 so ah .. 264 
Acuminatus, Jate ‘Cadulus) ons ws ee s«3 266 
Annulatum, Tate=D. australe... > sic sie 204: 
Aratum, Tate (Dentalium) ahs oe ans OD 
Australe, Sharp and Pilsbry (Dentalium) ‘ <a ne 264 
Bifrons, Tate Cea apy ee wee ht 1260 
Capvuuvs, Phil. ‘ = v5 nee ... 266 
DENTALIUM, Lin. , me a er wos on 
Entalis spp. = —Dentalium +: ane <a wee AOL 
EpistPHon, Pilsbry and Sharp ... me ad 5 aes 
FIssIDENTALIUM, Fischer ae rad ae au! (261 
FustTIARiA, Stolickza .. 4. wie a2 ... 264 
GaDILA, Gray aa en “8 fe ope 208 
GaDILINAa, Foresti Re op a a se) DO 
GRAPTACME, Pilsbry and Sharp ... +A oa ve plue 
Infans, Tate (Cadulus) .. e ay us 20.266 
Trreguiaris, Hutton=D. Mantelli ... oh -! 2bp26E 
Kickai, Ten-Woods=D. Mantelli ... Xe Ly vou QGt 
Lacteolum, Tate (Dentalium) se x che won O04 
Lacteum, Tate=D. lacteolum Ath ~_ re er si 
LZVIDENTALIUM, Cossmann - Ae a a ebe 
Largicrescens, Tate (Dentalium) ... Las wae ue £264 
Latesuleatum, J'ate (Dentalium) ... om ba 3) A262 
Mantelli, Zitted (Dentalium) see wer aE w<- ol 
Mucronatus, Tate (Cadulus) it a a i= “206 
Pictile, Tate (Dentalium) ey. 4. as 2. 7 1263 
Sectiforme, 7’ate (Dentalium) ae i ee to Ae 
Subfissura, Tate (Dentalium) re ay. i va BOATR 
Tatei, Sharp and Pilsbry (Dentalium) =5) ee fe 72.06 
Tenuis, Hutton=D. Mantelli aoe Fad ee me SOE 
Tornatissimum, J'ate (Dentalium) .. if ote . 265 
Triquetrum, Tate=D. Tatei fo i = ni 200 
EXPLANATION OF PLATE VIII. 
Fig. Page. Fig. Page 
1 Terebratella pumila ... 255 7a. Anal extremity of same . 
2. Terebratula Tateana ... 250 8. Dentalium pictile ... 263 
3-3a. Magasella lunata 256 9. Dentalium latesulcatum 262 
4-4q, Rhynchonella tubulifera 257 10. Dentalium largicrescens . 264 
5.  Terebratula vitreoides... 250 10a. Anal extremity of same. 
6. Dentalium sectiforme ... 262 11. Cadulus infans... 20) 266 
6a. Anal extremity of same - 12, Cadulus acuminatus  ... 266 
We Dentalium tornatissimum 265 
