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Two New Records of Fishes from Theandaman Sea, Thailand

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Two New Records of Fishes from Theandaman Sea, Thailand Phuket mar biol, Cent. Spec. Publ. no. 12(1993) 93 TWO NEW RECORDS OF FISHES FROM THEANDAMAN SEA, THAILAND by Pairoj Sirimontrapornl an d Somchai Bussarawit2 I. National Coastal Aquaculture Institute, Songkla, Thailand. 2, Phuket Marine Biological Center Phuket, Thailand. ABSTRACT Two new records of fishes, Holanthias chrysostictus (Gunther, l81l) and lchthyscopus leback sannio Whitley,(inMawdaet a|.,1984,p. 293)) from localitres inthe Andaman Seawere examinedanddescribed. INTRODUCTION produced and reaching to anus. Caudal fin crescen- tic, wrth the outer rays much produced. Scales cilated, head entirely covered by scales, rough to touch; lat- At the Workshop in fishes from the Andaman eral line cuwed anteriorly. Sea, held at Phuket Marine Biologrcal Center during 5- I 0 September 1 993, we had the chance to examine two Meristic measurement: D.X, 17; A.III,7; P, 16;Pr.I, 5; specimens of fish in the Reference Collection. They LI.48. TL. 54cm. turned out to be new records from the Andaman Sea, Thailand. Head length 42.3yo, and depth of body 48.0% of maxillary length 45.6% SYSTEMAIICACCOIJNT standard length', eye 19.3Vo,and of head length. Pectoral fin length equal to length of pelvrc fin and 30.0% of standard length. Base of dor- Holanthias chry sostidas (Gunther, 1 87 I ). sal fin 64.07o, andbase ofanal fin 18.0% ofstandard (Plate 8, Fig.26) length. Anthi as chrysosliclzs Gunther, I 87 I :655. Colour: Deep pink, upper part of head yellow, oblique Odontanthias chrysostitus Bleekeq 187 2"231 ; 181 3' bright yellow bands on head, one from below the eye 1876:21. running down through the posterior part of maxillary H o I anthi as c hrys o s ti c tu s Boulenger, I 895 : 3 I 9 ; We- to the lower jaw and chin, other two bands from the ber and Beaufo rt, l93L:96-97, fig. 13 . occipital vertically down to the border of preopercle of pectoral finyellow, pelvic Material examined: I specimen (PI\AC 10034), and opercle. Upperbase and anal fins pink with bright yellow band on outer A{xadarnan Sea, i50 m depth, Coll. WeeraPokapunt, anterior spinous dorsal and filamentous rays January 1993, vertical bottom long-line. border; bright yellow, rest of the fin pink, with some red spots part. fin pink, except yellowish- Description: Body broad and strongly compressed; on the outer Caudal pink on the upper and lower parts. mouth moderate, oblique, protractile. Maxillary ex- tended posteriorly. Teeth present on endopterygoid, Remarks: The species preserved in the PMBC Refer- villiform teeth on jaws, lower jaw prominent. Snout ence Collection is very close to the description by short; posterior nostril large, three times bigger than Boulenger ( cited after M. Weber and de Beaufort , the anterior. Preopercle serrated, without antrorse 1931, p. 97). However, our qpecimen is somewhat dif- teeth at the angle; opercle with three flat spines, middle ferent from their description with regard to the yellow, one curved upwards, upper spine a little far from the cephalic bands which run frombelow the eye lower two. A long dorsal fin, the first three rays pro- oblique ofpectoral fins. Furthermore, red spots are duced to long filament. Pelvic fin long, the first ray to the base 94 Taxonomy and biologt of fishesfrom the Andaman Sea. present on the dorsal fins. The fish is different from Material examined: I specimen (PMBC 8023), Kollae, H. natalensis in Smith (1965), p. 200. The latter spe- Phuket, collectedby a Rawai Sea G1psy, 2.4.1991, bot- cies has more yellow colour on the middle of the body, tom net at a depth of 20 m. it is not yellow on the nape, and all the dorsal spinous ray part is yellow. Diagnosis: Head cuboid andbroad; body compressed, covered with embedded scales, arranged in oblique These fishes were previuosly assigned to the fam- rows. Eye on upper side of head; mouth large, verti- ily Anthiidae (Smith, 1961; Smith i965). The classifi- cal; lips fringed. Operculum large with upper border cation of fishes within the large family Serrarudae has fringed. A slightly curve upwards fimmbriated mem- undergone major changes in recent years. Some branous appendage above pectoral axil. Spines on groups which have attimesbeen regarded as families, head absent. A shallow pit on posterior of interorbital e.g. Anthiidae, are nowregardedas Senanidae (Randall space. Pectoral fin long reaching beyond the level of et a|,.1990\. second dorsal fin origin; pelvic fin short, not reach- ing anus, caudal fin slightly rounded. Eight genera were previously reported in the sub- family Anthiinae by Weber and de Beaufort (1931), Meristic measurement: D.II, 17; A. 17;P,. 18; P,.I,4; viz. Holanthias. Odontanthias, Anthias, Plec- C.15.TL.38cm. tranthias, Dactylanthias, Pteranthias, Xenanthias, Sphaenanthias. In comparison, nine genera were as- Head length 36.6%ioof gandard length; interorbital signed to the family Anthiidae (Smith, I 96 I ) namely; space 25.5Yo and eyel .8o/o of head length. Le4st depth Holanthias, Callanthias, Anthias, Emmelanthias, of infraoftitalsT .5Yo, and greatest depth of infraorbital Pelontrus, Nemanthias, Pteranthias, Xenanthias, 27 .}yo of head length. Length of infraorbital fossa Luzonichthys, 10.1% and width ofinfraorbital fossa 8.77o ofhead length. Depth ofbody at the dorsal fin origin 2'l .6o/oof Anthiid fishes are among the most exquisite of standard lenglh; predorsal length32.9o/o and pectoral those species which frequent reefs of tropical seas. fin length 26.1olo of standard length. Base of dorsal fin They may occur in such vast numbers as to form clouds 4l.2Yoandbase of analfin 47,0% of standard lensth. that almost obscure sloping coral reefs. Most species live in relatively shallow water, extending to moderate Colour: Back: chocolate brown with numberous elon- depths, but a few usually more degenerate tlpes are gate white blotches from behind gill opening to cau- found infairly deep water. The free-swimmingtJpes dal base. Sides and ventral part yellowish-white. Dor- are preyed on extensively by larger fishes and are use- sal fin: brown at base border with yellow and white ful as bait. Because of their habits and small size sci- blotches along the fin; pectoral frn brown at base, entists are compelled to hunt them chiefly with explo- yellow on posterior half; anal fin brown and yellow. sives or poison. Remarks: The description by Masuda e t al. (1984) for this species was too short for meristical comparison, however, the photo of their specimen was similar to Ichthyscopus lebeck sannio the species kept in the Reference Collection of PMBC. Whitley, (in Masuda e t al., 1984, p.293) The meristic measurement methods follow Kishimoto @late 8, FiS.27) (1e8?. Ichthyscopus lebeck sannio Masuda et al.,1984'.293, Stargazers hide in sandybottom, using their wide pL.263-8 pectoral fins as shovels, leaving only their eyes and Ichthyscopus leb eckBvgess and Axelrod, 1990 :682, mouth cleft above the surface. The cirri onthe edge of pl. 420;Monro, I 982 : 200, p1.42, f:.g. 59 4. the mouth serve to keep out sand during respiration. Phuket mar biol. Cent. Spec. Publ. no. I2(1993) 95 The oral lure can be enticely wiggled above the sur- Fisheries, Samutprakarn and the Sea Gypsy, Rawai faceofthesandtoattractpreytocomewithinstriking Beach, Phuket who's donated the specimens to the range of the mouth. They suck up animals together PMBC Reference Collection. We acknowledge Dr. with sand and debris, when prey approaches. Jorgen Hylleberg, Danish consultant, for reading and correcting the manuscript. ACKNOWLEDGEMENTS We would like to thank to Mr. Weera Pokapunt, Oceanic Fishery Division, Department of REFERENCES Bleeker, P. 187 3 .Ne de rl. Tii dschr. dierk. lY. p.237 Bleeker, P. 1873-1876. Atlas lchthyol. VIL p.21 Boulenger, G.A. 1895. Cat. Precf. Fishes.I. p.319 Burgess, W.E. andH.R. Axelrod, 1990. Dr Butgess'sAtlas ofmarine aquariumfishes. T.F.H. Publications, Inc. U.S.A.768 p. Gunther, A.. 1871. Zool. Soc.London. p.655 Kishimoto, H. 1987. A new stargazer, Uranoscopusflavipinisfrom Japan andTaiwan, with redescription and neotypedescription of U. japonicus. JapaneseJournaloflchthyologt.34(1),:1014. Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino. 1984. The Fishes of the Japanese Archipelago. Tokai University Press, Japan. Randall J.E., G.R. Allen and R. C. Steene. 1990. Complete diver's and fisherman's guide to fishes of the Great Barrier Reef and Coral Sea. University of llawaai Press, U.S.A. 507 p. Smith, J.L.B. 1961-1963,IchthyologicalBulletirs 2l-32.MM. Smithed. (Vol. 2, Bulls. 2l-32, reprinted 1973) J.L.B. Smith Inst. Ichthyol., Rhodes Univ. Grahamstown, South Africa. Smitt\J.L.B., lg65.TheSeaFishesofSouthernAfrica. CentralNewsAgency.560p. Weber, M. andL.F. DeBeaufort, 1931. The Fishes ofthe Indo-AustralianArchipelago. Vol. W, p.96-97. leiden, E.J.BrillLtd.
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