No. 1626. MAMMALS FROM HASTERN SUMATRA—LYON. 
659 
group of cats. The Aru Bay and the Tebing Tinggi specimens are 
so different, however, that it is impossible to apne. them as belong- 
ing to the same species. Although the two examples are of opposite 
sexes, the difference in color and in the relative size of the teeth are 
too great to be accounted for on that ground entirely. 
External and cranial measurements of tiger cats. 
Felis suwma- Felis tingia, 
trana, aot type, Pape eay 
: : male, Cat. No. | male, Cat. No. 
Dimensions: 143624, U. S.N.| 144325, U.S. N. 
M., Aru Bay, | M., Pulo Te- 
Sumatra. bing Tinggi. 
Head and body Cre Re RE ie tare bah any Pe eA ON wee ee i eee oF 625 mm 485mm. 
ARON Geo SES SBS SABE AGO TT Se ce ee eng ee aati ae aes ay Pest es eh 145 185 
FANT RTO OL Cayenne tincy aE Gitar OO LN BNA ie) 114 108 
‘ Nf 5S? UO. 41 lbs. 
Weight... 2-22... 2. 2-2-2222 222222 ec ee pees ec ee ec ec ec ec gc tees etre ec eceee 1 2B illos 2 kilos 
Greatestplengcheotgs kul eye sere. cee eeyaeeers sees etree fe NS | 93. 5 mm 83. 2 mm 
VEXEVS EMT SSHANER LOS GSS Ses a couch tee a ee aC Sy aS a | 78.7 72 
IBY ye BOER HO « OSes rock See me ks RRA ok Ew SE SIA Tne ae eR | 76.8 70 
TR NevaVET OL sa a ess BS ia tee Br eee oe ap SL Op arte ae 35. 4 32.9 
AY SOU vICh wi CG hieen meray era erent UR AS aban ets WNT Pet og 64 56. 2 
HO SLORDIGAKCONS ERIC HOMME nara eee een ee apa eS eee 2, 26. 6 
WWIChia Ox IODA CASO GOONS PAYEXOUICNID S65 ancosossadosoosoabounnessanooon 40.3 37 
Greatestglengthmoieh Ulla verteet an ee Ge ene eek SEE ea ERE ge 21.8 18.7 
Creacestawldthyo tel wlll teres oases me ents eae hier ELAN aioe, | 12,8 12.2 
Alveolar length of last three maxillary teeth..............-....------- |. 15.8 16 
Alveolar length of last three mandibular teeth.................------- 19. 6 17.6 
aCollector’s measurements taken in the tes sh. 
AILURIN PLANICEPS (Vigors and Horsfield). 
1828. Felis planiceps Vicors and Horsrirtp, Zool. Journ., III, p. 450, pl. 
xl. (Type-locality, Sumatra.) 
1855. [Felis] (Ailurin) [planiceps], Grrvats, Hist. Nat. Mamm., II, p. 87. 
1889. Felis planiceps, JENTINK, Notes Leyden Museum, XI, p. 22. 
1905. Felis planiceps, SCHNEIDER, Zool. Jahrb. Syst., XXIII, p. 103. 
Of this interesting and rather rare cat Doctor Abbott secured an 
adult female (skin and skull, Cat. No. 144119, U.S.N.M.) from along 
the Little Siak River. The large size of the functional first premolar 
is well shown by a text figure in Gervais’ account (place cited) and 
even in the plate of the entire animal published by Vigors and Hors- 
field (place cited). For the present, at least, I consider the great 
development of this tooth with its two distinet roots as the main 
character of the genus of which Fels planiceps is the type. The 
general form of the skull does not differ from Fels proper more 
markedly than many other so- -called members of the composite genus 
Felis. A 
Collector’s mee nncnvei a: lead nnd hoa 490 moan,8 waNlll, IK@g)s 
hind foot, 104. Cranial measurements by writer: Greatest leat, 
96.5 ; ‘bral length, 86; palatal length, 35.8; zygomatic width, 56.4; 
breadth of brain c case above roots ot zygomata, of. De. 
oe an 
