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- Helcogramma rhinoceros Hansen 1986: 344 (Type locality: Putic Island, Philippines).
- Helcogramma rhinoceros: Fricke 1997: 467.
Material Examined for Description
USNM 222370, holotype, 27.5 mm SL, N.W. Putic Island, Palawan province, Philippines, V. G. Springer, 22 May 1978; NTOU-P 2009-06-043, 1 male, 29.6 m SL, Feng-chui-sha, Hengchun Township, Pingtung County, Taiwan, 9 m depth, M. C. Chiang et al., 20 July 2007.
D III, XIV-XV, 10-11. A I, 20. Lateral line with 19-22 pored scales. Dentary pore pattern 4+1+4. Supraorbital cirrus small and pointed. Nasal cirrus simple and slender. First dorsal-fin height equal to second dorsal-fin height. Vertebrae 11+26. Males with a proboscis-like dermal prolongation on tip of upper lip. Head of males orange above; head below level of eye, including upper lip and its extension, black; black pigment extending onto basal portion of pectoral fin. A yellowish or bluish white line extending along edge of black mask from upper rim of upper jaw to opercle and onto pectoral-fin base. Body pale yellow with indistinct H-shaped yellowish orange to orange markings. In males, H-shaped markings diffuse, narrow pale saddle marks extending discontinuously from dorsum to midline and below. A row of reddish blotches present along lateral midline, yellowish orange spots present at dorsal-fin base, and a dark blotch comprising densely packed melanophores present at posterior base of first dorsal fin and at anterior base of second dorsal fin. Dorsal-fin spines and rays orange near distal margin of fin; membranes yellowish orange on basal half and spotted with small melanophores on distal half. Uppermost pectoral-fin rays translucent, lowermost grayish or blackish. Anal fin orange. Caudal fin pale red and semi-translucent. Colour pattern of females based on Hansen (1986): head and body overall lighter than males; body with same pigment pattern as males; head without dark mask but with irregular scattered melanophores on face and diffuse band from eye onto upper lip.
One specimen was collected in this study at a depth of 9 m from southern Taiwan. This species previously has been recorded from the Philippines, Thailand, Indonesia, Solomon Islands, and Vanuatu (Hansen 1986; Fricke 1997).
This species is recorded herein for the first time in Taiwanese waters.
- Chiang, M; Chen, I; 2012: A new species of the genus Helcogramma (Blenniiformes, Tripterygiidae) from Taiwan ZooKeys, 216: 57-72. doi
- Hansen P (1986) Revision of the tripterygiid fish genus Helcogramma, including descriptions of four new species. Bulletin of Marine Sciences 38: 313-354.
- Fricke R (1997) Tripterygiid fishes of the western and central Pacific, with descriptions of 15 new species, including an annotated checklist of world Tripterygiidae (Teleostei). Theses Zoologicae 29: 1-607.