—230— Recently we obtained two specimens belongs to the genus Taractichthys Mead and Maul, 1958, from the South Sea including the adjacent waters of Jeju Island, Korea. Due to well-developed dorsal and anal fins and lunated caudal fin with white posterior margin, they were readily identified as the Sickle pomfret, Taractichthys steindachneri (Döderlein in Steindachner and Döderlein, 1883). It was at the northern coastal waters of Jeju Island in December 2003 that the Sickle pomfret has firstly been occurred from Korea and the fish was prepared as a stuf- fed specimen by a local taxidermist. After two year later, the species was also caught from Ganggu Port, Yeong- deok-gun, Gyeongsangnam-do, located at the southeast- ern coast of the Korean Peninsula by an angler and it was not preserved unfortunately. Although Lee et al. (2000) already included the species into their list of fish names of Korea and proposed a new Korean name, “Huin-ggo- ri-ta-rag-chi” for the species, any detailed description of T. steindachneri was not given for understanding its mor- phological characteristics as well as identification to species level up to date, especially on the basis of vouch- er specimens collected from Korea. We, therefore, pre- sent a detailed description of T. steindachneri on the basis of two specimens collected from Korea in this study.
Counts and measurements followed those of Hubbs and Lagler (1958). Number of vertical fins and vertebrae
were counted from radiographs, and the vouchers are de- posited at the National Institute of Biological Resources (NIBR-P), Korea.
Genus Taractichthys Mead and Maul, 1958 (New Korean name: Huin-ggo-ri-ta-rag-chi-sog) Taractichthys Mead and Maul, 1958: 407, 408 (type spec-
ies by original description: Brama longipinnis Lowe, 1843).
Dorsal fin originating behind head and falcate. Pectoral fin extending beyond lobe of anal fin. Pelvic fins shorts and inserted under anterior half of base of pectoral fin.
Caudal fin broad and stiff, its contour evenly concave.
Transverse caudal grooves well developed. Dorsal pro- file of head strongly arched and rounded. No scaleless area above and behind eye (after Mead, 1972).
Taractichthys steindachneri
(Döderlein in Steindachner and Döderlein, 1883) (Korean name: Huin-ggo-ri-ta-rag-chi)
(Fig. 1; Table 1)
Argo steindachneri Döderlein in Steindachner and Dö- derlein, 1883: 242, Pl. 7 (type locality: Tokyo, Japan).
Taractichthys steindachneri: Mead, 1972: 91; Okamura in Okamura et al., 1985: 497, 682 (Okinawa Trough, Japan); Smith, 1986: 636; Hatooka in Nakabo, 2002:
813 (Sagami Bay southward to Ryukyu Isls., Japan).
First Reliable Record of the Sickle pomfret,
Taractichthys steindachneri (Bramidae: Perciformes) from Korea
By Byung-Jik Kim, Jin-Koo Kim
1, Jung-Hwa Ryu
2,* and Ji-Tae Park
3National Institute of Biological Resources, Incheon 404-170, Korea
1Department of Marine Biology, Pukyong National University, Busan 608-737, Korea
2RUMI, Busan 614-811, Korea
3Korea Professional Fishing Association, Busan 614-850, Korea
ABSTRACT Taractichthys steindachneri is described based on two specimens (224.7~~406.5 mm SL) collected from the south sea including the adjacent water of Jeju Island, representing a reliable first record from Korea. The species is characterized by having well-separated each pelvic fin, semi- circular groove on dorsal surface of caudal peduncle, well-elongated dorsal and anal fin rays, nearly uniformly blackish body color with white margined caudal fin.
Key words : Taractichthys steindachneri, Bramidae, first reliable record, Korea, description
*Corresponding author: Jung-Hwa Ryu Tel: 82-51-894-7262, Fax: 82-51-895-7845, E-mail: [email protected]
KOREAN JOURNAL OF ICHTHYOLOGY, Vol. 24, No. 3, 230-233, September 2012 ISSN: 1225-8598
Received: May 24, 2012 Revised: July 4, 2012 Accepted: September 20, 2012
http://www.fishkorea.or.kr
Material examined. NIBR-P4556, 406.5 mm in stan- dard length (SL), Yokjido (ls.), Yokji-myeon, Tongyeong- si, Gyeongsangnam-do, Korea, 3 February 2009, collect- ed by Ji-Tae Park, 10~14 m depth; NIBR-P16209, 224.7 mm SL, Seongsan-ri, Seongsan-eup, Seogwipo-si, Jeju- do, Korea, 25 June 2009, collected by Jin-Woo Park;
uncataloged stuffed specimen*, 424.6 mm SL, Hanlim, Jeju-si, Jeju-do, Korea, 10 December, 2003, collected by Cheol-Ho Shin*, not included in counts and measure- ments.
Diagnosis. A Taractichthys species having a well-sep- arated pelvic fin originating before pectoral fin base, semicircular groove on dorsal surface of caudal peduncle, 34~38 lateral line scales, and blackish body with whit- ish-margined lunate caudal fin.
Description. Dorsal fin rays V, 30~31; anal fin rays IV, 21~22; pectoral fin rays 19~20; pelvic fin rays I, 5;
principal caudal fin rays 17; scales in horizontal series 34~35; predorsal scales ca. 30; gill rakers 8++1++12~13
==21~22; vertebrae 44~46.
Proportions as % SL: body depth 56.3~64.6; body width 17.1~20.9; head length 31.3~33.8; head width 18.2~19.0; snout length 9.1~9.3; upper jaw length 16.2~16.6; distance between nostrils 2.8~2.9; orbital diameter 7.1~7.7; interor-bital width 12.1~12.8; snout to origin of dorsal fin 47.2~48.9; snout to origin of pec- toral fin 32.5~33.3; snout to origin of pelvic fin 36.1;
snout to origin of anal fin 59.6~60.9; base of dorsal fin 58.9~64.7; base of anal fin 45.6~51.4; caudal peduncle depth 7.1~7.7; caudal peduncle length 10.6~11.2;
pectoral fin length 34.1~41.2; pelvic fin length 7.7~
11.3; distance between origin of pelvic fin 7.2~7.9;
longest dorsal fin ray 30.8~45.5 (broken tip); longest anal fin ray 39.9~64.2 (broken tip).
Body ovate, high, and strongly compressed. Caudal peduncle low and short with a semicircular groove on dorsal surface. Dorsal contour of head distinctively con- vex. Eye rather large and interorbital space convex.
First Reliable Record of Taractichthys steindachneri from Korea 231
Fig. 1. Taractichthys steindachneri (Döderlein), NIBR-P4556 (406.5 mm SL) collected from the southern coastal waters of Korea.
Table 1. Comparison of meristic characters for Taractichthys steindachneri
Present study Mead (1972) Okamura in
Okamura et al. (1985)
Standard length (mm) 224.7~406.5 (n==2) 110.0~590.0 (n==4) 302.0 (n==1)
Dorsal fin rays V, 30~31 34~36* IV, 30
Anal fin rays IV, 22~23 27* III, 23
Pectoral fin rays 19~20 21~22 21
Scales in horizontal series 34~35 35~38 34~35
Gill rakers 8++1++12~13==21~22 2~3++1++6~8==9~12 4++13==17
(2++1++6==9)**
*total number; **only prominent rakers.
Mouth large and oblique; maxillary tip reaching a verti- cal at center of pupil; small conical teeth on both jaws arranged in four to five irregular rows. No teeth on vomer and palatines. Gill membranes free from isthmus. Origin of dorsal fin posterior end of opercle. Dorsal and anal fins nearly identical in their shape and their anterior por- tions elongated. Pectoral fin large and pointed, its tip far extending a vertical at middle portion of dorsal fin. Both pelvic fins small and short, widely separated from each other, and its origin before upper end of pectoral fin base.
Caudal fin deeply lunated, tips of both lobes somewhat elongated. Scales large and cycloid. Head, except around nostrils and lower jaw, and body fully scales.
Color when fresh. Head and body uniformly blackish, except for caudal fin with whitish-emarginated. Upper portion of pectoral fin, and posterior margins of pelvic and anal fins transparent.
Color after preservation. Nearly same color when fresh.
Distribution. Known from the Indo-Pacific and East- ern Central Pacific: eastern and southern coastal waters (Ganggu, Tongyeong, Jeju) in Korea (present study).
Remarks. The present materials collected from the Korean waters are readily identified as a member of the genus Taractichthys of the Bramidae due to having fal- cate dorsal and anal fins, pelvic fins originated before upper end of pectoral fin base and semicircular groove on dorsal surface of caudal peduncle (Hatooka, 2002). In the genus, only two species of T. longifinnis and T. ste- indachneri have been recognized as valid (Mead, 1972).
The former is known from tropical and warm temperate Atlantic including western Baltic Sea and North Sea, and the latter from Red Sea as well as Indo-Pacific including South Africa and Réunion east to Hawaiian Islands and southern California, north to southern Japan, south to New Caledonia (see Mead, 1972 and Catalog of Fishes electronic version by Fricke and Eschmeyer for more information). As mentioned by Fricke and Eschmeyer, Taractichthys steindacheri (originally spelled as Argo steindacheri n. sp., n. gen. Döderl.) was not described or discussed in the original reference, except for name list- ed on the figure caption page illustrated on Pl. 7 (Stein- dachner and Döderlein, 1883: 34, 242). Then, we could not compare the present specimens with the original description or type specimen of Argo steindachneri for strict identification to species level. However, the exter- nal appearance of the present Korean specimens were in well accordance with that of original figure of A. stein- dachneri, i.e., general body shape with rounded head, falcate dorsal and anal fins as well as lunate caudal fin with white margined. In addition, we also compared the morphological data taken from the Korean specimens with those of the previous reports as shown in Table 1, and could not find out any remarkable differences bet- ween them, except for the number of gill rakers. Although
the Korean specimens have larger number of gill rakers than even those from Japan, further studies are needed to determine the difference.
According to the previous reports (Mead, 1972; Smith, 1986), Taractichthys steindachneri is easily differentiated from T. longipinnis by smaller number of lateral line scales (34~38 vs. 39~46 for the latter). Because the Korean name of T. steindachneri was already proposed by Lee et al. (2000) as “Huin-ggo-ri-ta-rag-chi”, we fol- lowed the name for the species.
ACKNOWLEDGMENTS
It was supported by the project on Survey and Excava- tion of Korean Indigenous Species of the National Insti- tute of Biological Resources under the Ministry of En- vironment, Korea. We thank Mr. Hyun-Geun Cho (NIBR) for his support to take radiographs.
REFERENCES
Hatooka, K. 2002. Bramidae. In: Nakabo, T. (ed.), Fishes of Japan with Pictorial Keys to the Species, English edi- tion. Tokai University Press, Tokyo, pp. 813-816.
Hubbs, C.L. and K.F. Lagler. 1958. Fishes of the Great Lakes Region. Cranbrook Institute of Science Bulletin No.
26, 213pp.
Lee, S.K., Y.U. Kim, J.G. Myoung, and J.M. Kim. 2000. Fish names of Korea. KORDI, Ansan, 222pp. (in Korean) Lowe, R.T. 1843. Notices of fishes newly observed or dis- covered in Madeira during the years 1840, 1841, and 1842. Proceedings of the Zoological Society of Lon- don 1843(pt 11): 81-95.
Mead, G.W. 1972. Bramidae. Dana Report No. 81: 1-166, pls. 1-9.
Mead, G.W. and G.E. Maul. 1958. Taractes asper and the systematic relationships of the Steinegeriidae and Trachyberycidae. Bulletin of the Museum of Com- parative Zoology, 119: 393-417.
Okamura, O. 1985. Bramidae. In: Okamura, O. and T. Kita- jima (eds.), Fishes of the Okinawa Trough and the Adjacent Waters. Vol. 2. The Intensive Research of Unexploited Fishery Resources on Continental Slopes.
Japan Fisheries Resource Conservation Association, Tokyo, pp. 496-497, 682. (in Japanese and English) Smith, M.M. 1986. Family No. 207: Bramidae. In: Smith,
M.M. and P.C. Heemstra (eds.), Smith’s Sea Fishes.
Springer-Verlag, New York, pp. 633-636.
Steindachner, F. and L. Döderlein. 1883. Beiträge zur Kennt- niss der Fische Japan’s. (I.). Denkschriften der Kaiser- liche Akademie der Wissenschaften in Wien. Mathe- matisch-Naturwissenschaftliche Classe, 47: 211-242.
232 Byung-Jik Kim, Jin-Koo Kim, Jung-Hwa Ryu and Ji-Tae Park
우리나라 남해에서 출현한 새다래과(농어목) 한국미기록종, 흰꼬리타락치 Taractichthys steindachneri
김병직∙김진구1∙유정화2∙박지태3
국립생물자원관, 1부경대학교, 2유정화해양연구소, 3한국프로낚시연맹
요 약 :과거 우리나라 남해에 출현하는 것으로 알려졌던 농어목 새다래과의 한국미기록종 흰꼬리타락치 (Taractichthys steindachneri)에 대해 제주도를 포함한 남해에서 채집된 2개체(표준체장 224.7~406.5 mm)의 표 본을 근거로 형태적 특징을 상세히 기재하였다. 본 종은 양측 배지느러미가 서로 멀리 떨어져 위치하는 점, 미병 부 배측에 반월상의 홈이 있는 점, 등지느러미와 뒷지느러미가 길게 신장하는 점, 그리고 체색이 전체적으로 검 고 꼬리지느러미 후연이 백색인 점이 특징이다.
찾아보기 낱말 :새다래과, 흰꼬리타락치, 한국미기록종, 기재
First Reliable Record of Taractichthys steindachneri from Korea 233
