Bull. biogeogr. Soc. Japan 66. 61 73 Dec. 20, 2011 66 23 12 20 3 1* 2 3 4 108 8477 4 5 7 891 4205 1559 1 890 0065 1 21 24 890 0065 1 21 30 Northernmost records of three blenniid fishes (Teleostei: Perciformes) from Yaku-shima Island, southern Japan, with their ecological notes Atsunobu Murase 1*, Shigeru Harazaki 2, Masatoshi Meguro 3 and Hiroyuki Motomura 4 1 Laboratory of Ichthyology, Faculty of Marine Science, Tokyo University of Marine Science and Technology, 4 5 7 Konan, Minato-ku, Tokyo 108 8477, Japan 2 Diving Service Mori to Umi, 1559 1 Miyanoura, Yakushima, Kumage, Kagoshima 891 4205, Japan 3 The United Graduate School of Agricultural Sciences, Kagoshima University, 1 21 24 Korimoto, Kagoshima 890 0065, Japan 4 The Kagoshima University Museum, 1 21 30 Korimoto, Kagoshima 890 0065, Japan Abstract. Two species of blenniid fish, Cirrisalarias bunares and Ecsenius oculus, were collected from Yaku-shima Island, southern Japan, being described as northernmost records of the species and first records from Yaku-shima Island on the basis of collected specimens. In addition, Nannosalarias navitatus is also described in detail on the basis of male and female specimens from Yaku-shima Island. Underwater observations of C. bunares, E. ocullus and N. navitatus suggest them to reproduce around Yaku-shima Island. Aspidontus dussumieri and Petroscirtes breviceps, were also recorded from Yaku-shima Island, southern Japan, on the basis of collected specimens for the first time. Key words: Blenniidae, Cirrisalarias bunares, Ecsenius oculus, Fish fauna, Kagoshima Prefecture, Japan, Nannosalarias nativitatus, northernmost record, Yakushima Island ( ) Cirrisalarias bunares Ecsenius oculus 2 Nannosalarias nativitatus 3 Aspidontus dussumieri Petroscirtes breviceps * (Corresponding author): atsunobum@yahoo.co.jp 61
3 Blenniidae 57 387 (Hastings and Springer, 2009) 30 80 ( 1988 2000 Lee et al., 2000 2001 Aizawa, 2002 2002 2009a b 2010) 60 km Motomura et al. (2010) 951 38 4% 22 6 10 Motomura and Aizawa (2011) 2 Cirripectes castaneus (Valenciennes, 1836) Nannosalarias nativitatus (Regan, 1909) 2011 6 Cirrisalarias bunares Springer, 1976( 2009b) Ecsenius oculus Springer, 1971 2 (Motomura and Aizawa, 2011) 3 2 Aspidontus dussumieri (Valenciennes, 1836) Petroscirtes breviceps (Valenciennes, 1836) Smith-Vaniz and Springer (1971) (2006) 1 10 1 mm Smith-Vaniz and Springer (1971) (1984) SO IFO (CO) CO Springer and Gomon (1975) (2009b) Fig. 1 (2001) (KAUM) Cirrisalarias bunares Springer, 1976 (Figs. 1A, 2) KAUM I. 38350 1 27.2 mm SL 1 10 m 2011 6 9 12 17 2 17 62
村瀬敦宣 原崎 森 目黒昌利 本村浩之 Fig. 1. Fresh specimens of three blenniid species from Yaku-shima Island, representing the northernmost distributional record for each species. A, Cirrisalarias bunares, KAUM I. 38350, male, 27.2 mm SL; B, Ecsenius oculus, KAUM I. 38698, female, 41.0 mm SL; C, Nannosalarias nativitatus, upper: KAUM I. 38359, female, 34.3 mm SL, lower: KAUM I. 38360, male, 39.2 mm SL. 63
3 14 1 3 7 + 6 10 + 27 = 37 (LL)1 (MS)2 (ST)5 (PP)8 (MP)3 (IO)2 (CO)11 (NP)2 115.1( ) 23.5 15.1 77.6 44.9 4.8 23.5 9.9 5 3 1 (IO) 11 2 (Fig. 1A) 1 2 3 4 5 5 4 6 1 2 1 1 4 4 2 4 8 1 4 1 4 3 1 64
(Springer, 1976, 1982; Springer and Spreitzer, 1978; Randall, 2005; 2009b; ) (Fig. 2) 0.5 2.0 m 3 1 Springer (1976) (2009b) Cirrisalarias bunares ( 2009b) (2009b) (2009b) 18 19 Springer (1976) 17 19 ( 2009b) Ecsenius oculus Springer, 1971 (Fig. 1B) KAUM I. 38698 1 41.0 mm SL 1 5 m 2011 6 11 12 14 2 16 12 1 3 7 + 7 10 + 23 = 33 122.7 24.4 19.0 72.7 42.7 7.6 23.7 15.1 4.1 1 1 ( ) 1 11 (Fig. 1B) 65
3 Fig. 2. Underwater photograph of Cirrisalarias bunares. Nagata, western coast of Yaku-shima Island, southern Japan, 2 m depth, 14 Sep. 2010 (specimen not collected). Photo by S. Harazaki. 2 2 4 1 2 8 6 3 4 2 1 66
4 1 4 3 ( 1975 Springer, 1988 Senou et al., 2006a, 2007 2009 Motomura et al., 2010 ) (Shen et al., 1986; Springer, 1988) Springer (1988) 5 m 12 Smith-Vaniz and Springer (1971) Springer (1971, 1988) Springer and Spreitzer (1978) Oculus group(sensu Springer, 1988) E. paroculus Springer, 1988 E. oculatus Springer, 1988 2 1 ( ) (Springer, 1988) Springer (1988) E. oculus (Motomura et al., 2010) ( 1975 Springer, 1988 Senou et al., 2006a) ( ) Nannosalarias nativitatus (Regan, 1909) (Fig. 1C) KAUM I. 38359 1 34.3 mm SL 1 10 m 2011 6 9 KAUM I. 38360 1 39.2 mm SL KAUM I. 38359 12 16 2 18 15 1 3 7 + 6 5 + 4 10 + 25 = 35 118.7(118.4 ) 25.1(23.7) 17.2(17.9) 73.8(71.4) 44.3(47.4) 7.3(6.6) 20.4(19.6) 13.4(11.7) 2.3(5.9) 2.6(3.1) 88.5% 32.0% 80 85 1 5 6 7 8 67
3 2 2 9 11 9 (Fig. 1C, ) 1 1 1 1 2 6 3 H 8 1 1 2 1 ( ) (Fig. 1C, ) 6 1 1 68
1 1 H 1 5 1 3 ( 1975 Senou et al., 2006a, 2007 2009 Motomura et al., 2010 Motomura and Aizawa, 2011 ) ( ) (Smith-Vaniz and Springer, 1971; Randall, 2005) 3 m 5 m 12 16 18 15 3 80 100 Smith-Vaniz and Springer (1971) Aizawa (2002) (Motomura et al., 2010) (Motomura and Aizawa, 2011) 69
3 Fig. 3. Fresh specimens of two blenniid species newly-recorded from Yaku-shima Island. A, Aspidontus dussumieri, KAUM I. 38384, male, 55.3 mm SL; B, Petroscirtes breviceps (Batesian mimic color of Meiacanthus grammistes), KAUM I. 38288, female, 52.6 mm SL. Aspidontus dussumieri (Valenciennes, 1836) (Fig. 3A) KAUM I. 38384 1 55.3 mm SL 1 5 m 2011 6 10 3 14 Smith-Vaniz (1976) Aizawa (2002) Aspidontus dussumieri ( 1975; Smith-Vaniz, 1976; Fukao, 1985; Aizawa, 2002; Senou et al., 2002, 2006a, b, 2007; Motomura et al., 2010) ( 1992 Motomura et al., 2010) Petroscirtes breviceps (Valenciennes, 1836) (Fig. 3B) KAUM I. 38288 1 52.6 mm SL 20 25 m 2011 6 8 3 11 19 70
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