TRIPTERYGIIDAE Ucla xenogrammus, 2.7 cm SL (photo by Ukkrit Satapoomin) Ucla xenogrammus Holleman, 1993 Longjaw Triplefin D III+ XII-XV + 11-14; A II, 18-22; P1 15; P2 I, 2; LLp 38-40; MP 2-3 + 2 + 2-3. Body slender. Supraorbital region lacking tentacles. Lower jaw projecting anteriorly. Lateral line with pored scale anteriorly, notched scales posteriorly. Color: body translucent, ventral column sometimes apparent from alternating, long red and short white bands on its dorsal edge; maroon dots on body forming Y- or H-shaped bars, and single midlateral row of narrow dashes; single maroon line on snout bifurcating at nostrils. Size: attaining to 5.7 cm. Distribution: Indo-West Pacific, including the Andaman Sea, Ryukyu Islands, Guam and Tonga. Remarks: occurring on coral reefs in 2-41 m depths.