580 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



ACANTHION LONGICAUDUM (Marsden). 



1810. Hijstrix longicauda Maksden, History of Sumatra, 8d ed., 1811, p. 118, 



name only, without description, and pi. xiii n. /. with legend: "The Landak, 



Hijstrix longicauda. Published by W. Marsden 1810." Type-locality: 



Sumatra. 

 1871. Hystrix inidleri Marshall, Proc. Zool. Soc. London, 1871, p. 235, footnote. 



Type-locality: " Padang-bessie (Sumatra)." See Jentink, notes Leyden 



Museum, I, 1879, p. 91. 

 1879. Hystrix miXlleri Jentink, Notes Leyden Museum, I, 1879, p. 89. 

 1888. Aranthion mi'dlcri, Jentink, Cat. Syst. Mammiferes, Mns. Hist. Nat. Pays- 



bas, XII, p. 104. 

 1905. Hystrix longicauda, Willink, Natuurkundig Tijdschrift Nederlandsch- 



Indie, LXV, p. 265. 

 1905. Hystrix longicauda, Schneider, Zool. Jahrb., Syst. Geogr. Biol., XXIII, p. 



113. 



Dlstrihu tio7i. — 8 uniatra. 



Diagnostic characters. — Similar to AcantMon l>7'achyurum, but 

 apparently slightly smaller; with less conspicuous throat collars. 



Color. — As in A, hrachyurum., but in the single available specimen 

 the light throat collar very poorly defined and the sides of bodj^ 

 are lighter in color, owing to the spines having lighter bases than in 

 A. hrackyurum. 



Skull. — Evidentl}^ smaller than that of A. hracTiyurum. Jentink'* 

 gives the total length of the skull of an old male as 135 mm. The 

 skull of a young male in the U. S. National Museum measures 103 mm. 

 total length, against 110 mm. total length in a skull of the same age, as 

 judged by the teeth, from the Malay Peninsula. 



Measurements. — See table, page 593. 



8'peciinens examined. — One, a young male, from Aru Bay, Sumatra. 



^<?/w«rA's.— Jentink* records AcantMon in ulle/'i and Acanthionjava- 

 nicuni from Sumatra, Tanjong Morawa. No description of them is 

 given, but it is to be supposed that they difier, as pointed out by 

 Jentink*^* in 1879, mainl}^ in size — in which case there are two distinct 

 forms of Acanthion in Sumatra. That Jentink did not have a speci- 

 men of Thecurus., is evident from the fact that the smaller of his 

 species, A. javanicum.^ has a skull length of 118 mm., while the skull 

 length of Thecurus is scarcely more t-han 100 mm. 



ACANTHION JAVANICUM F. Cuvier. 



1822. Alcanthion'] javanicum F. Cuvier, Mem. Mus. Hist. Nat. Paris, IX, 1822, 



p. 431, pi. XX bis, figs. 3, 4. Type-locality: Java. 

 1836. Hystrix torquata van der Hoeven and de Vriese, Tijdscrift Natuur. Ges- 



chied. en Physiol., Ill, 1836, p. 110. 

 18J4. H[yslrix'] hrevispinosa Wagner, Supplementband Schrebers Sdugthiere, 



IV, p. 20. 



a Notes Leyden Museum, I, 1879, p. 91. 

 ''Idem, XI, 1889, p. 28. 



