NO.130G. JAPANESE BERYCOID FISHES— JORDAN AND FOWLER. 



gev speaks of the occurrence of Gephyroheryx darwlnl Lowe (from 

 Madeira) in Japan. He has doubtless reference to Gejjkyrobet'yx 

 jajxnucHS a species which needs comparison with (r. <h(ririnl^ fi'om 

 which it differs, p«M-haps, in the presence of 7 instead of 8 dorsal spines. 



S. HOPLOSTETHUS Cuvier and Valenciennes. 



Noplostetlnts Cuviek and Valenciennes, Hist. Nat. Poiss., IV, 1829, p. 469 

 {)nediterraueti.s). 



Body short and deep, nuich compressed. Head short, compressed, 

 very bhmt anteriorly, deeper than long, with very conspicuous 

 mucous cavities. Eye ^ery large. Mouth very oblique, the jaws 

 equal when the mouth is closed. Maxillary long-, ])road behind, with 

 a distinct supplemental bone, which reaches the posterior border of 

 the eve. Teeth very tine, villiform, on jaws and palatines, none on 

 the vomer. Subor])ital with radiating ridges and a few spines; a ver- 

 tical ridge on the front of the opercle. Opercle little developed, its 

 spine small or ol)solete; a strong spine at the angle of the preopercle; 

 the long vertical limb of the preopercle iinely serrated. Gill-mem- 

 branes separate, free from the isthmus. Branchiostegals 8. Scales 

 moderate or small, ctenoid; lateral line present, its scales enlarged; 

 abdomen with a series of ]>ony plates, each ending in a retrose spine. 

 Dorsal tin continuous, short, the spines graduated, in number; anal 

 with 3 graduated spines; caudal forked, its rudimentary rays spinous; 

 pectorals low, rather long; ventrals T, ♦!, rather short. Air bladder 

 simple. Pyloric c(eca numerous. Vertebne 11 -|- 15. Deep-sea tishes, 

 red in color. 



Roulenger, following Lowe, unites ]TnpJost,tlni^ with TracJiichthys. 

 The ditierence is certainly slight, JIojtlostet/iKs kicking vomerine teeth 

 and having 6 dorsal spines instead of 3. 



[onXov, armor; ffrf/ftog, ])reast.) , * 



4. HOPLOSTETHUS MEDITERRANEUS Cuvier and Valenciennes. 

 IIINCHIDAI (FLINT-PERCH). 



Hoplosiethus meditcrraneuft Cuvier and Valenciennes, Hist. Nat. Poiss., IV, 

 1829, p. 469; Mediterranean Sea.— -Gunther, Cat., I, 1859, p. 9 — Jordan and 

 Gilbert, Synopsis, 1883, p. 458. — Goode and Bean, Oceanic Ichthyology, 

 1895, p. 181.— IsHiKAWA, Pre!. Cat., 1897, p. 58; Kii. 



TracInditJiys preiiosus Lowe, Proc. Zool. Soc. Lonil., 1839, p. 77; Madeira. , 



Hoplosiethus japonicus Hilgendorf, Sitz. Ges. Naturforschende Freunde, Berlin, 

 1879, p. 78; Japan. 



Ifophstetinis vtediterrmifus (var. ?) Steindaciinkh, Fische Japans. I, iss;!, j). 10, 

 pi. i; Tokyo. 



Head, 2| to 2t; depth, 2 to 2|; D., VI, 13 to U; A., IH, 9 to 10; 

 P., I, 14 to 16; v., I, 6; ventral scutes, 9 to 15; scales, 28 to 29. 

 Body ovate, deep, compressed, and covered with small ctenoid scales, 

 except those of the lateral line, which are enlarged; above and on the 



