Owstonia sarmiento, Liao & Reyes Jr & Shao, 2009

Liao, Yun-Chih, Reyes Jr, Rodolfo B. & Shao, Kwang-Tsao, 2009, A New Bandfish, Owstonia Sarmiento (Pisces: Perciformes: Cepolidae: Owstoniinae), From The Philippines With A Key To Species Of The Genus, Raffles Bulletin of Zoology 57 (2), pp. 521-525 : 522-524

Owstonia sarmiento , new species

( Table 1, Figs. 1 A & 1B )

Material examination. – Holotype, PNMI 17006 ( ASIZP0067939 ), 61 mm SL, 21 May 2007, CP2667-003, Aurora, East Luzon , Philippines, 15.93°N 121.78°E, 307– 292 m, French-type beam trawl, coll. MV DA-BFAR.

Paratypes. – ASIZP0068216 , 64 mm SL, 2 Jun.2007 , CC2743- 020 , Aurora, East Luzon , Philippines, 16.02°N 121.85°E, 302–309 m, otter trawl, coll . MV DA-BFAR; – ASIZP0067820 , 63 mm SL, 20 May 2007 , CP2656-004, Aurora, East Luzon , Philippines, 16.03°N 121.88°E, 262–278 m, French-type beam trawl, coll . MV DA-BFAR; – ASIZP0068380 , 63 mm SL, 20 May 2007 , CP2656- 004, Aurora, East Luzon , Philippines, 16.03°N 121.88°E, 262–278 m, French-type beam trawl, coll . MV DA-BFAR.

Diagnosis. – Dorsal-fin rays III 23, Anal-fin rays II 14, Pectoral-fin rays 19, Pelvic-fin rays I 5, caudal rays 17–19, vertebrate counts 29. Branchiostegal rays 6; gill rakers 13–14 (upper) +1(middle) +26–28 (lower). Scales: cheek with 2–3 rows of 8–10 scales, lateral rows of scale from gill opening to caudal 27–30 and 3 more scales on caudal fin, lateral line scales 23–29 connected in front of dorsal fin, other 4 lateral scales downward to gill opening, predorsal scales 2. Pelvic fin short, not extending to anal fin base. Reddish in color, outer margin of fins whitish, black pigmentation between membrane of maxilla and premaxilla.

Scientific Name Owstonia Owstonia Owstonia Owstonia Owstonia Owstonia samiento , new species totomiensis weberi dorypterus microlepis maccullochi

Author Tanaka, 1908 Gilchrist, 1922 (Fowler, 1934) (Fowler, 1934) Whitley, 1934 Liao et al., 2009

Type(s) FMNH 55424 SAIAB(RUSI) USNM 93166 ANSP 54940 AMS IA5815 ASIZP0067939 ASIZP0068216 ASIZP0067820 ASIZP0068380 11072-3

D III + 21 III + 21 III + 21 III + 21 III + 22 III + 23 III + 23 III + 23 III + 23

A I + 14 I + 14 I + 14 I + 14 I + 14 II + 14 II + 14 II + 14 II + 14

P1 21 20 1 + 18 19 21 19 19 19 19

P2 I + 5 I + 5 I + 5 I + 5 I + 5 I + 5 I + 5 I + 5 I + 5

Caudal 17 14 N /A 17 15 19 17 19 18

Vert 28 27-28 N/A 28 28 29 29 29 29

Br 6 6 6 6 6 6 6 6 6

GR N/A (14–15) + 1 + 9 + 25 16 + 1 + 31 17 + 1 + 30 13 + 1 + 27 14 + 1 + 26 13 + 1 + 26 14 + 1 + 28 (29–30)

Cheek scales absent (lost) 3–4 rows 6 rows 3 rows = 18 5 rows = 40 8 10 2 + 9

Pred S 6 6 9 6 8 2 2 2 2

Lateral row scales 55 + 5 40 + 4 38 + 4 39 + 4 51 + 5 29–30 + 3 27-28 + 3 27 + 3 29 + 3

Lateral line scales 52 + 4 37 + (7) 28 45 + 6 60 + 4 24 + 4 28 + 4 23 + 4 29 + 4

Description. – Body compressed and elongated, tapering posteriorly. Head large, 26–28% in SL; body depth 24–25% in SL. Eye large, 44–50% in HL, inter-orbital distance 32–35% in HL. Mouth large, posterior maxilla not extended to posterior margin of eye. Fin rays and spines counts: dorsal fin III 23, anal fin II 14, pectoral fin 19 rays, pelvic fin I 5, caudal fin 17–19 rays and a few accompanying short rays on the upper and lower margin. Vertebral counts 29. Branchiostegal 6, gill rakers upper 13–14, middle 1, and lower 26–28. Scales: cheek 2–3 rows, 8–10 scales; lateral row scales start from gill opening to caudal fin with 27–30 scales and 3 more scales covered on caudal fin base; dorsal lateral line scale 23–29 along dorsal fin base and connected in front of dorsal fin, another 4 tube-like lateral scales extended downwards to upper margin of gill opening; predorsal scales 2. Scales cycloid with 7–10 radii. Pelvic fin short, not extending to anal fin base.

Colouration. – Body reddish when fresh, eyes orange, operculum and maxilla reddish to whitish, membrane between maxilla and pre-maxilla entirely pigmented, membrane between maxilla and posterior lower jaw pigmented, pectoral fins reddish, pelvic fins whitish; dorsal, anal, and caudal fins reddish with white outer margin and one red band along the basal of white margin; belly whitish. Colour in alcohol nearly uniformly whitish.

Distribution. – Currently known only from the type locality in the Philippines.

Etymology. – This new species is named after the director of the Bureau of Fisheries and Aquatic Resources ( Philippines), Malcolm Sarmiento, for his support in making this exploration of deep-sea fauna in the Philippines possible. The species name is used as a noun in apposition.

Figures

Fig 1. Owstonia sarmiento, new species, holotype, PNMI 17006 (ASIZP0067939), 61 mm SL: A, colour photograph; B, radiograph.