FISHES OF HAWAIIAN ISLANDS. 695 



Kainily OGCOCErH ALID.fi. 



Malthopsis mitrigera (iillint A ('lainer. 



F"il'ty-t\vo siifciiiiciis urn- takiMi at i:i stations, the depth ranging usually fmni L'oO to MOO falhciins. 



Median ]iortions of breast and liell\ as fully plated as the haek; antero-lateral margin of dink 

 furnished with 2 series of plates separated liy a shallow groove; below these, posteriorly, a third series 

 whieh runs from angle to point opposite posterior margin of orbit, where it turns abruptly mesad and 

 joins its fellow across middle of breast; the naked spaee containing anal opening surrounded anteriorly 

 and laterally liy 2 parallel series of plates, the outer of these crossing median line immediately Ix'hind 

 vcrilral lins, and continued laterally along posterior lower margin of arm; breast with 2 large ])lates on 

 middle line, and a series of plates on either side which pass between bases of ventrals and diverge 

 anteriorly; upper half of eye above pupil covered with small plates with radiating ridges, the lower 

 series of these larger and centrally elevated; vomerine teeth minute, forming a moderate transverse 

 band; separated from this band by a narrow line, on each side, is a small round palatine |iatch much 

 less than half size of vomerine patch; tongue covered with retrorse teeth; hjngitiidinal diameter of 

 orbit two-fifths its distance from gill-opening; anterior nostril in a short tube, rather widely separated 

 from posterior, which is a small roundish pore; when extended, the pectcjrals fail to reach tij) of sub- 

 o|)ercular spine; ventrals not nearly reaching margin of disk; no functional gills on first or fotirth arches. 



Our specimens range in length from 3'! to SO mm. The ymmger individuals differ in no essential 

 features from the adults. 



In the Zoological Record for ISDO, Vol. XXXI II, Pisces, page 22, Gilbert and Cramerare erroneously 

 credited with establishing Mdllhoji.ns as a new genus for the reception of the jiresent species. This 

 error is repeated in the Index Zoologicus, 1902, page 211. A glance at the original description of 

 Maltliopsh mitriffem shows that it is jiroposed as a new species of Alcock's genus Mallhoj/s-is, to which 

 it belongs. " MdUhnpsis Gilbert and Cramer" does not exist. 



Specimens were taken at the following stations; Nos. 3S39, off the south coast of Molokai, 259 to 

 266 fathoms; 3865, Pailolo Channel, 256 to 2S3 fathoms; 3867, Pailolo Channel, 284 to 290 fathoms; 

 3883, Pailolo Channel, 277 to 284 fathoms; 3914, off the south coast of Oahu, 289 to 292 fathoms; :59I7, 

 off the south coast of Oahu, 294 to 330 fathoms; 3918, off the south coast of Oahu, 257 to 294 fathoms; 

 4096, northeast approach to Pailolo Channel, 272 to 286 fathoms; 4097, northeast apjiroach to Pailolo 



Chaimel, 286 to - fathoms; 4117, off the northeast coast of Oahu, 25:! to 282 fall s; 4122, off the 



southwest coast of Oahu, 192 to 352 fathoms; 4130, vicinity of Kauai, '2s:', to .'lOO fatliouis; 4132, vicinity 



of Kauai, 257 to ;U2 fathoms. 



Mallhoijsismilriyer (iilbcTt & cramc-r, Proc. I', s. NkI. Mus.. XIX, 1,S97, J34, i>l. xi.viii. ligs. 1, •>. 



Malthopsis jordani, new species. Plat<' 1 01). 



Type, 85 mm. long, from station 3853, off the south roast of Molokai, depth 115 to i:;4 fathoms; 

 type. No. 51625, U. S. Nat. Mus. 



Kength of disk, excluding pectoral liasis, 52 buinlrcillhs of total length without raiidal; greatest 

 width of disk 60; length of caudal "peduncle, from vent, 46; greatest width of caudal peiluncle 17; dis- 

 tance from vent to front of anal 25; diameter of eye 12; interorbital width 4.5; wiilth of mcnith, 

 between tips of maxillaries, 11: length of caudal 25; longest i)ectoral ray 20; longest ventral ray 19. 

 D. 6; A. 4; P. 13; V. i, 5. 



Interorbital space gently concave, very narrow anteriorly; upper orbital rim be;iringa blunt tubcn'le 

 above posterior margin, a smaller one above middle of orbit, and 2, rather indistinct, anteriorly at 

 base of rostral process; rostral process rol)Ust, directed vertically upward, its anterior margin descending 

 without notch or other interruption to a point below middle of orbit; rostral tentacle robust, short, 

 not reaching margin of premaxillaries when laid forward: no narrowed stem can be distinguished 

 below the thick oblong end or lure; mouth very narrow; a narrow band of mimite teeth in front of 

 lower jaw, with a much wider band of cardiform teeth behinil it; premaxillary band narrower; entire 

 surface of tongue beset with coarse teeth <lirccted backwanl; a broad roundish patch of teeth on 

 vomer, with an oval palatine patch on either side, separated oidy by narrow lines; palatine patches 

 nearly as large as vomerine patch; anterior nostril with a rcHexed margin but no tube, closely adja- 

 cent to ])osterior nostril, which is a long transverse slit; two double gills on each side, the anterior 

 gill-arch very short, provided with a few spinous rakers, but without gill-tilameiiLs, the position oil Ihi' 



