Norfolkia brachylepis (Schultz, 1960)
Tropical scaly-headed triplefin
photo by Randall, J.E.

Family:  Tripterygiidae (Triplefin blennies), subfamily: Tripterygiinae
Max. size:  7.3 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 1 - 25 m
Distribution:  Indo-West Pacific: Red Sea to Fiji, north to the Izu Islands, south to southwest and southeast Australia and New Caledonia. Recently recorded from Tonga (Ref. 53797).
Diagnosis:  Dorsal spines (total): 18-19; Dorsal soft rays (total): 10-11; Anal spines: 2-2; Anal soft rays: 20-21. Diagnosis: Dorsal fins IV + XIV-XV + 10-11 (IV+XV+11); anal fin II, 20-21 (21), spine length half of the rays; pectoral rays 16, dorsalmost 2-3 and ventral most 7 simple, remainder branched once; pelvic rays bound together by membrane for less than one-fourth of length of shorter ray. Lateral line pored scales 21-24 (22), terminates between 2nd and 3rd dorsal fins; notched scales and 14-19 (16); total lateral scales 32-35 (34). Dentary pores 5-6 + 1 + 5-6. Orbital and nasal cirri palmate and about as large as pupil diameter. Dorsal fin also with cirri at tips of spines. Head 2.9-3.6 (3.3) in SL, eye 3.0–3.9 (3.3), maxilla 2.3-3.0 (2.6) and snout 3.3-4.9 (3.8) in head length (Ref. 88983). Heavily pigmented (Ref. 1602). Overall greyish or brownish with 5 white saddles on dorsal side extending to fins, eye bar black and broad, anal fin vertical bands black, caudal fin bands grey and white (Ref. 90102).
Biology:  Adults inhabit coral or rock, often under ledges, on clear lagoon and seaward reefs (Ref. 13227). Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114).
IUCN Red List Status: Least Concern (LC); Date assessed: 07 May 2010 Ref. (123251)
Threat to humans:  harmless
Country info:   

Entered by: Capuli, Estelita Emily - 21.07.95
Modified by: Luna, Susan M. - 24.03.14
Checked by: Williams, Jeffrey T. - 05.10.95

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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