NO. 1358. 



JAPANESE SCULPINS— JORDAN AND STARKtS. 



321 



36. HISTIOCOTTUS Gill. 



Peropus Lay and Be.nnett, Beeoliey's Voy., Zoo!., Kisli., 1,S.S9, p. 59 {bllohiis); 



name preoccupied. 

 Hisliocottus Gill, Proc. U. S. Nat. Mus., 1888, p. 573 (hiUmH). 



This genus is very close to Blepslas, from which it differs in the 

 absence of smooth areas on the body; the tins are lower, the dorsal 

 not eiuarginate, and tlie pectoral much larger, perhaps capable of l)eing 

 used for flight. North Pacific. 



(iffTiov, sail; C<>ttui<.) 



52. HISTIOCOTTUS BILOBUS (Cuvier and Valenciennes). 



Blepsias bUohiis CrviER and Valenciennes, Hist. Nat. Poiss., IV, 1829, p. 379, 



Kamchatka (Coll. M. Collee, Brit. ]\Ius. ).— GtJNTnER, Cat., II, 1860, p. 153.— 



Jordan and Gilbert, Synopsis, 1833, p. 720. 

 Peropus hllohus Bennett, Beechey's Voy., Zool., Fish., 1839, p. 59. 

 HistiocottuH bilobus Jordan and Gilbert, Kept. U. S. Fur Seal Comm., Ill, 



p. 468.— Jordan and Evermann, Fish. N. and M. Amer., II, 1898, ji. 2018; 



Kadiak. — Schmidt, Faune mer Japon, 1903, j). 15; Sea of .lapan. 



t::^:^ 



"m. 



Fig. 39.— HISTIOCOTTUS BILOBUS. 



D. IX-21; A. 18; P. 10. Body shorter and deeper than in Blejmas 

 vn-r/io.sK.s, with thicker caudal peduncle and heavier head, the bones 

 k^ss tirm; snout short, olitusc, interorbital space very wide, concave, 

 i wider than the small eye; short occipital ridges present, besides sev- 

 eral l)luntish tubercles. Mouth broad, oblicjue, the maxillary reaching 

 pupil; teeth small, distant; barbels as in rlrrJiosiis. Head and body 

 covered with prickles, larger and l)lunter than in c!rrJt<»<i(x; no naked 

 patches on body; hns less developed than in clrrhosnx; first 5 or ♦! 

 spines of dorsal subeciual, the last :> abruptly .shorter; pectorals longer 

 and much broader than in drr/iosKs, i-eaching seventh anal ray; caudal 

 short, nuich shorter than head. Olivaceous, paler below; dorsal 

 region with -I or .5 black bars, reaching one-third the distance to the 

 lateral line, and somewhat continued on the tins; caudal with a black 



