A MEMOli; UPON THE GENUS 
2.HII 
iherinm in that l^.tli tliair anterior and posterior siirtaces are convex, and there is 
no pniinineiit hasal riflge so eharaeteristic of tJie incisors of Telmatotherhim. 
'riie incisors of the male (No. 10,282 h) are larger and more massive than 
ihos*- of tin- female (No. 10, <109). In tlie male the external incisor is a very power- 
ful tisith, with a very thick and wide sj)reading crowm. The diastema separaP 
in^' this t<s>th fn*m the canine is larger in the male than in the female. The canine 
4if the male is a huge Is-ar-like tnsk. It is round in section, its posterior face exhibit- 
ing a slight longitudinal ridge. The diameter of the canine in the male is much 
great«-r than in the female, and its section is rounder. The post canine diastema 
in ls»th s4-.\es is als»ut equal. The total measurements of the superior molar series 
<»f /'. fHiluiiosus show a gn-at range of variation, and the accompanying table will 
ilhistnite this j>oint. We ma\ consider the extreme forms of this species as varieties. 
'I’vm.K OK MK.VSrnKMKXTS SnoWI.VfJ THE VAKIATIOX IX THE HEXTITIOX OF 
PaI.-KO.SYOI’S i’ALUlXISUS. 
Kiilirp inoUr 
I j-iiBlh of iimiiolno .... 
l»-iii{iti of ini)' niitlnrH 
, ( initiM. 
iiioUr ;t ■ 
( ■llt.-lHWl. 
^ . f in«nii .... 
niular 1 • 
( niil.-IHixt. 
iirrmotiir 4-1011111 
-'Up po'niuliu- l-lnnin. 
K.iaitr molar M-rics (Inf.) 
l‘o'mi>Ur . (“) 
Tmo HMilar lirri*-*! (“) 
^ ( Imiia. 
I atil.-|Mif>i. . 
mip. canino 
Sop. po'-oininc illai't. 
.-op |,w| " 
l•••t. lolion-lc inf. inolnr .T f 
( nnl.-iKJut. 
Inf molar 3 1 
No. 10.27(!. 
Lekly’s fig. 
of skull. 
No. 10,009. 
No. 10,282 b. 
No. 10,118. 
•1.5S 
•162 
•172 
•178 

(Hi.) 
•070 
•074 

•0!».") 
•100 
•102 
•105 

•(Ml 
•043 
•044 
•046 

•0.TS 
•040 
•039 
•042 
•o:tl 
•031 
•03.5 

■o ;!0 
•032 
•032 

•02(i 
•025 
•027 
•00.S 
015 
. - _ 
■ 
•I'H) 
•187 
! 
•082 

_ 
, 
■112 
•107 
■ _ - 
•105 
•025 
•024 
•020 
•051 
■047 
•048 
— 
•020 
•025 
•010 
•013 
■Oil 
•010 
•012 
.015 

•013 J 
•013 
gn-ater than in tin. i 1 '/^^ '^anation in the size of the molar series is 
shows .a,n«i<lcrahle ilifll-micr’ premolars also 
.av./iAa4. y,t. JJUTlXiUiai I 
-the first superior premolar in the female is very 
111 ..I 0 tlii, i, voIt I"*' 
•liaiiii-l<.r i, v>.r.) ,-i,.„tcJiu|,,uvd to' * oomc®! in fonn its transverse 
i.H 1-4.11 vex. the inner one Ix-ino- slier] +1^ ^ ^“^i^idual of this siiecies; its outer face 
'xmg slightly concave. The premolar 1 is placed close to 
