In 1977, January, we had a chance to examine the Tundjungs, one of the ethnic groups of the Dayaks. They made several small villages near by Melak (cf. Fig. 3). They lived in the family house separately instead of the traditional longhouse, because their longhouse was too old (cf. Photo. 19 and 20). Melak was situated in the basin of the Mahakam River, located near the equator and about 350km north-west far from Samarinda, east Kalimantan (cf. Fig. 1 and 2).Fifty-two males and thirty-six females of the Tundjungs were surveyed in three small villages (Tongkok, Jolek and Sekolah Darat). Their average age was probably 38 years old in males and 40 years old in females (cf. Table 1).Results of the observations of the head: 1. Hairs of head: black or dark brown, smooth and soft.2.Hairs of face: poor. 3. Breadth of face: medium (cf. Table 2).4.Breadth of mandible: medium (cf. Table 3). 5. Form of mandible: sharp (cf. Table 4).6.Height of forehead: high (cf.Table 5).7.Breadth of fore head: medium (cf. Table 6). 8. Projection of malar bone: medium. 9. Projection of superciliary arch: weak. 10. Type of nasal bridge: straight (cf. Table 7). 11. Height of nasal tip: medium (cf. Table 8). 12. Breadth of nasal wing: medium (cf. Table 9). 13. Direction of rima palpebrarum : holizontal. 14. Thickness of superior palpebra : medium. 15. Type of upper eyelid fold: type III (the inner ends of eyelid fold coming in contact with the angulus oculinasalis, cf. Table 10 and Photo 9). 16. Size of oral fissure: medium (cf. Table 11). 17. Thickness of upper and lower lips: medium (cf. Table 12). 18. Type of ear lobule: round (cf. Table 13).Results of the measurements and the indices of the head: 1.Head length: 184.1±O.9mm in males and 175.5±0.8mm in females (cf. Table 14). 2. Type of head length: medium (cf. Table 15). 3. Head breadth: 147.8±0.6mm in males and 142.2±O.8mm in females (cf. Table 14). 4. Type of head breadth: narrow (cf. Table 16). 5. Bizygomatic breadth: 136.0±O.6mm in males and 129.2±0.8 in females (cf. Table 14). 6. Type of facial breadth: narrow in males and medium in females (cf. Table 17). 7. Bigonial breadth: 103.7±O.6mm in males and 97.4±O.6mm in females (cf. Table 14). 8. Morphological facial height (measured from not nasion but supraorbital level to gnathion): 125.4±O.9mm in males and 116.9±l.0mm in females (cf. Table 14). 9. Cephalic index: 80.4±0.5 in males and 81.3±0.6 in females (cf. Table 18). 10. Type of cephalic index: mesocephalic (cf. Table 19). 11. Transverse cephalof acial index: 92.4±0.4 in males and 90.8±0.4 in females (cf. Table 18). 12. Zygomandibular index: 75.5±0.4 in males and 75.5±0.5 in females (cf. Table 18).From the comparison of the head length, the head breadth, the cephalic index, the bizygomatic breadth and the bigonial breadth among the tribes in Borneo, the Tundjung is classifiedinto the same ethnic group of the Kenyas and the Kayans (cf. Fig. 5, Tables 20 and 21).According to the racial map of Kalimantan appeared in the Kesusasteraan Indonesia No. 5, the Tundjung lives in the close area to the Kenyas and the Kayans (cf.Fig.4).This factseems to support the above classification.