Nycticebus malaianus. While it is darker above and below than the average of the peninsular animals, yet this is probably within the limits of individual variation. The black blotching on the hands and feet is so irregular that it may be abnormal, a couple of blackish spots are also found on the forearms. The brownish coloring about the ears looks more normal.
NYCTICEBUS JAVANICUS E. Geoffrey.
1812. Nycticebas javanicus E. Geoffroy, Ann. du Museum, XIX, p. 164.
Distribution.—Java.
Diagnostic characters.—A small light-colored species, with well-defined dorsal and face stripes, the dorsal stripe bordered by a distinct grayish area along neck and upper back.
Color.—Sides of body and lower back dirty-pinkish buff; underparts similar, but lighter; head, neck, and upper back dirty grayish; dorsal stripe well marked, most pronounced in middle of back, gradually disappearing on the rump, blackish brown along the middle, dull cinnamon posteriorly, darker cinnamon on the head; face markings a mixture of cinnamon and Isabella color, becoming light russet about the ears.
Skull and teeth.—The single skull is young and lacks the premaxillæ. Temporal ridges appear to belong to the type that meet in old age to form a sagittal crest. Mastoid and audital bullæ not inflated. According to Anderson and Milne-Edwards the number of upper incisors may be two, three, or four.
Measurements.—See table, page 537.
Specimens examined.—One, Cat. No. 6475, Acad. Nat. Sci. Phila. The specimen is labeled as having come from the Philadelphia Zoological Society, which throws some doubt on its really having come from Java.
Remarks.—The grayish color bordering the dark markings makes this species appear quite distinct in color from other island forms. With the exception of the well-defined face markings, the anterior part of the animal resembles quite closely Edward’s figure of Nycticebus cinereus. Many authors have laid stress on the distinctness of the head markings in the Javan animal, but they are not more distinct than in many examples of other species except N. coucang and N. cinereus.
NYCTICEBUS BORNEANUS, new species.
Type.—Adult male, skin and skull. Cat. No. 142284, U. S. N. M., collected along the Sakaiam River, a tributary of the Kapuas River, Sanggau district, western Borneo, August 15, 1905, by Dr. W. L. Abbott. Original number 4322.
Distribution.—Western Borneo.
Diagnostic characters.—Temporal ridges never meeting to form a
