N0.1287. JAPANESE TRW a ER-FISIIES—JORDAX AXT) FOWLER. 281 



Tokyo southward. Our luuuerous specimens are from Tokyo, Misaki, 

 Aburatsul)o (8aoami), Eiiosliima, Wakanoura, Hakata, and Nat^asaki. 



It is pro])ab]y a subspecies of Ostraclon tiibei'culatuni^ (cubieum), as 

 Bleeker has indicated, or even it may be the same species with it, as 

 Giinther regards it. We give it provisional rank as a distinct species 

 because all our specimens are deeper in body than O. tuherculatam' 

 none of them show any of the black spots characteristic of that species, 

 and in our experience very few of the fishes permanentl}' resident along 

 the coast of Japan are exactly identical with the cognate species of the 

 East Indies. The absence of frontal and dorsal spines at once dis- 

 tinguishes this from the other Japanese trunk-fishes. 



{Imviacidatax^ unspotted.) 



22. OSTRACION DIAPHANUM Bloch and Schneider. 



(). T^MITSUZUME (Bid SEA SWALLOW); SUZUMKFnU' (SWALLOW 

 PUFFER). 



Oxt radon diaplianns Bloch and Schneider, Syst. lehth., 1801, p. 501; no 

 locality. — Bleekek, Act. Soc. Sci. Indo-Nederl., Ill, 1857, Japan, IV, p. 38.— 

 HoLLARD, Ann. Sci. Nat, 1857, VIII, p. 157.— GtJNTHER, Cat. Fisli., VIII, 

 1870, p. 264; Cape of Good Hope, Japan.— Ishikawa, Prel. Cat., 1897, p. .3; 

 Kagoshma, Sagami (one specimen wrongly called 0. fornasini). 



0.s7 /7/CTOJi ?>r"raconjis Schlegel, Fauna Ja})onica, Poiss., 1846, p. 297, pi. cxxx, 

 fig. 3; Nagasaki. 



( Hntcion undechnaculeatux f^MiTii , 111. Zool. S. Afr., 1838-42, pi. xvii; Cape of Good 

 Hope. 



(M radon pentacornis BsyiNETT, Whaling Voyage, 1839, p. 266. 



Ostracion cornutm Bleeker, Atlas Ichth., V, 1865-69, p. 33, pi. n, fig. 2; j)]. iv, 

 fig. 3, Amboyna, Nagasaki (not of Linnaeus, according to Peters, Berlin, 

 Monat. Ak. Wiss. Berlin, 1868, p. 461). 



Head -i; depth 2f; D. 9; A. 9; scales 10 from gill opening to end of 

 carapace, 12 across greatest ventral width, and 8 in a series from dor- 

 sal spine to ventral keel. Body moderately long, heavy forward, 

 broader than deep, and convex below. Carapace with 4 ridges, the 



'The following are the chief synonyms of Ostracion tuberculatum: 



(Mradon tetragonus Linn^us, Mus. Adolph-Frederik, 1759, p. 59; India (date 



prior to 1758, the recognized beginning of binominal nomenclature). 

 (Mradon tuherculatus Linn^us, Syst. Nat., 10th ed., 1758, p. 331; India (after 



Artedi, p. 84; no species; back with 4 tubercles). 

 (Mradon cuhicus Linn^us, Syst. Nat., 10th ed., 1758, p. 331; India (after Ostradon 



tetragonus Giinther, Cat. Fish., VIII, 1870, p. 260, and of authors generally). 

 (Mradon Mtuberculatus Bloch and Schneider, Syst. Ichth., 1801, p. 501; Pacific 



Ocean (after Lac^pede) . 

 (Mradon argus RtJppELL, Atlas Fische, 1828, p. 4, pi. i, fig. 2; Red Sea. 

 (Mradon cyanurus Ruppell, Atlas Fische, 1828, p. 4, pi. i, fig. 2; Red Sea. 

 Ostradon tesserula Bleeker, Nat. Tyds. Ned. Ind., Ill, 1852, p. 305; Molucca (not 



of Cantor). 

 (Mradon tetragonus Bleeker, Atlas Ichth., V, 1865, p. .'59, ]>1. iii, fig. 2; Java, 



Sumatra, Singapore, Celebes, Amboyna, etc. 



