SANFORD—SOMERSET-CAVE RODENTIA. 129 
anterior parts of two skulls, and two rami of lower jaws of a small 
species of Cricetus which so closely resemble those of Cricetus son- 
garus, though very slightly larger than the specimens we have com- 
pared them with, that we must, for the present at least, refer them 
to that species. It is possible that this is the same species as that 
described by M. Pomel, from the Bréches de Coudes, as Cricetus 
musculus. Cricetus songarus at present inhabits Russia and western 
Siberia. 
Measurements, 
Lepus diluvianus. 
Basal length of skull from foramen magnum to anterior portion in. 
Gimterm axillary nas cecmesencenedcsutcesseserb sec secrlsssas:/seseasl caer 3°42 
PBximemen enemy ec ssnawen ease seta secor ee deeesecarucasene stains ocesen 4°36 
Height of skull from alveolar border of M1 to highest part of 
HO Mbal re nesses sies chasse sales he eo des scieenrmemaiebateieasesdaceacmtemascs 1-54 
Wadthyextremeyatisquamosals, epenscsceree eer tececeeeeeceeroneeeaes 2:00 
Bape ene bhneOksbaslOcenpital rn. senseless) acemadesel-anacerialeeecescs 0:56 
3) 3 basisphenorcdeeere ceteeccermaecncerjace cas araeesecesssnne 0-56 
5 PLS PMEMOld ee scene we meses cde to sacausee dea oe nyse 32, 
Length GIMSUTOCENpIball ect ncae ye cecumtcrmacnoRn ten eee wececeels suites 0.58 
Width ,, i el SSB AGERE REE NTC TOG SA BST PIII cre RE EL 1:10 
ee tOigparietalS amustayseucess sceaeneaeaeser-ceantonccsadcinace sine 0-96 
Width ,, PN tes Teen eee eRan eRe Tacs mace dad adaae semeccnenaite 1-23 
ASM LORO Ie TEOMtAISH O..uarettaee dese te eiektenicdedccesessactbecs eevee senda wens 
Wadthrof frontals| (double the half) ..s-0c2s.ctsncscsscesenedscessasee 1-31 
Wenatitokmasal sy. issuers ct sweheeicasevcsudesniacaghiontonitwalsrecciceeet ae 1-49 
Width of nasals (extreme) maha ge aot bcc abana tralia em aa 0:90 
(Garam) Riveter antenna Ay ema oR 0:83 
Monat yp ee oe ee 0:40 
Malar process of maxillary to posterior end of malar ............... 1-43 
Diastema between incisors and PM 2 .........sescesssccsesecsecsouses 1-27 
INIGIT? GIES. 4 canaseannsueceauenedor kc edacuce eC oroe Men tcdeare EeaRESe rE ERER ny 077 
Lower jaw— 
Total length, not including incisor.......... ahd adinaaortensuetecte 2:76 
Depth at PINES] a0 GAC ae aR a ne Ua inn AT 0:62 
Meniarimomn condyle tovangle ......dedseccccnessvevacectasiaeioasceoasn ers 1:90 
Wee MO ua lerm ay: Naa acesanccssccdosavecessuecneraente teoes td evavensesaoe 0:89 
JGHEIE BITES,» ccbtieerooagacSonabe Hae ceRnL CE BHC HCUeH Ic RHE oC ra See Eee eat 0-75 
Width. Length. 
in. in. 
Dentition, upper ........ TRIM 2 oooo00080 OAG Mee eseese 0:08 
PM 3 500 WHE) Genceodas 0-12 
PM 4 ......... (O25) sooancood 0-11 
Me ee ace 0:24 wo... 013+ 
Via Di eeee acess O20) eeedet O11 
IDS) osdecone (O}018) cresenooe 0:05 
s lower ...... Mee MG isctecaiesssls O12. «..... 0:16 
TPM 4 oc asisiere Oona 1:12 
VEL e  sisatacties Ome cusses 0-14 
Me SS icventess Ole ees 012+ 
MBs cetera OPI) ss senncec 0-10 
VOL, XXVI,—PART I. K 
