KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 48. N:O 5. 103 
The dimensions of my largest and next smallest specimens are as follows: 
Heneth 'ofiheadiandiubody tiil. sh. sd I . 105 mr: 86 mm. 
» TAGA META stf NT ÄTT SR I AR Ra RK , 36 
, SR FLIT CA FADO fal obe lt oj et RR SES a St ae ls i 20 ) 19 
» FE TOLTSARM FANG NANG c ch t Coke stl cf 8 > ols (ALDO 23,5 
» HELT G ACL ers MSE Sr elelr Ler ek SNOUL. Ds ) 23 
MYStan co mom muZzzlO tO: SAL. eo s vo . s . eo . . I « AND 17,6 
» » » 2 LENO root Or SON KOL eb oy SR AR RO re PA 9,2 
» » OVANLOF CAT ej Vore tel ler «dd odd RAA CF RE 10,5 » 8,1 
Skull: 
Occiput! toltip ofinasal. ill. oo Wi da dc 23 oo» 18,4 
» HEDE INCISOTS ITE SIehfe ijrITS BKS fa UNT 28: 22;1 4» 
Conrebylobasallongth ake ssu ck så Ae så es svaja 20 20,6 
Condyle to incisor tip . . . « « SETS SS SEE NDS 22 
(ATS ALESLRLIOACLDNSSE is or fed fe Helen SS isla) er etgel del sr 20: 15 
HoagtiwidthiabehinxONDICS. Mel sv el Lön eh sl en ber ss se fe 6 OM 
Mastordrbread this! tri. ös s ks SLAVERI ONE Sid, KU 19 127005 
Length of nasals 5 .« . - « sö ISS ITRI ER Fog El 6,6 
Combined breadth of nasals in front . . . » » « » + 4,5 » ST 
Combimed. breadth of upper ineiSOrS. sc s..sfas she 3,3 » 2,4 
IDFEKS(S00E olucdG Rico kor OO RS 01 ED) KL Sä LOLO oa 0) » 155 
Hen gthlof upper molar. sörleSji, sis - ie sv .oc:n freds BIE 3,4 
Bength of palate : - so st. « YO NOA SPA La SN 1 
As these figures indicate there is a considerable difference in size between the 
specimens collected. This stands of course in connection with difference in age, but 
even the smaller and younger of these two specimens measured above has a plainly 
developed lambdoid crest. Both have three molariform teeth on either side of both 
jaws. As all my specimens are collected in the same locality there cannot, of course, 
be any doubt about their representing the same species. But it is not quite so easy 
to tell at once which. Fornarina is, of course, excluded in consequence of the number 
of cheek teeth. Of the three species of Heterocephalus described, one, viz. H. ansorgei 
THOMAS," is very much smaller, if the type has been fullgrown, and its cheek-teeth 
are smaller. H. dunmi THoMmas? which is a large species, is said to have a >»short 
low coronoid>» on the lower jaw as Fornarina, and also the zygomata »very boldly 
expanded as much anteriorly as posteriorly» — — — In my specimens the coronoid 
is high and slender, very different from the type exhibited by Fornarina. "The shape 
of the zygomatic arches is probably something intermediate between that exhibited 
by H. glaber as represented by RöÖPPEL's figure”, and H. dunni as described by THOMAS 
(1. c.). It is thus comparatively more bowed out in its anterior portion than in the 
former species, but the zygoma is conspicuously more expanded behind than in front. 
Proc. Zool. Soc., London 1903, p. 336. 
Ann. & Mag. Nat. Hist., Ser. 8, Vol: IV; 19097 p. 109: 
Mus. Senckenb. Abhandl., Bd. III, Frankfurt 1845, Taf. X, Fig. 3 a,b, c. 
