FISHES OK HAWAIIAN ISLANDS. fi53 



much loiifjcr tliiiii in I), .miicii, reiichiiifj to vvilliin li:ill' ;i milliiiicler cif liM.sc (if pectoral. In the type 

 specimen of .rnilcii, (i5 mm. hmg, a space of L' nmi. iiilervenes between tlie anlioperculai' spine and the 

 base of the pectoral, (rill-slit entirely lateral, little wider than the ilistance between the tips of the 

 2 spines; lower end of };ill-slit innni'diately above base of ventral spine; preopercular margin adiiate. 

 not, armeil; occiput slisihlly rouyhened, less so tlian in ./.»/(<;. 



Ventrals with their inner margin wholly irvr, not joined by membrane li> base of pectorals, as in 

 CallionipnUK; ventrals also less wididy separated at base. In /'. hmniiii'iisix, iliey are much longer than 

 in xenica, reachint' base of second anal ray; p(>ctorals reaching well beyond vi'iilrals. 



First diirsal spine longest, tlie second and third of about ei|ual length, llie upper margin of tin 

 concave; when tbe tin is declined, the tips of all the spines extend beyond base of lirst dorsal ray; soft 

 dorsal and anal sinular, low, of e(|ual length; anal a little more iiosteriorly inserted; the last dorsal and 

 anal rays fall short of base of caudal, w hen depressed; caudal tin short, roun<led; no trace of lateral line. 



Color in spirits very light gray aliove and below, the back with faint traces of •"> darker eross-liars; 

 first and second cross-bars under origin and end of spinous dorsal, the third and fourth equally spaced 

 under soft dorsal, the liftb on back of tail; dorsal region faintly spotted and mottled with darker; 

 5 faint oi-ellated routid spots form a V-sliai«Ml ligmc with its apex on najie, the diverging arms inclosing 

 front of spinous <lorsal; posterior part of spinous dorsal black; two narrower horizontal black lines on 

 soft dor.«al, caudal with L' faint dark bars on basal portion; two small black spots at base of pectoral; 

 fins otherwise umnarked. 



Only th(! type sjiecimen was obtained. 



Family ATI' I.EOPID.^'. 

 Ateleopus plicatellus, ni-w species. l'"ig. 2."i3. 



Type, 5.5 cm. long, from station :i868, I'ailolo (baniiel, I'tM to (1S4 fathoms; type, N'o. ."il.isti, 

 IT. S. Nat. Mus. 



Head \n hundredths of total length; greatest depth (at occiput) il; length of heail and trunk I'd; 

 predorsal length 17.5; preventral length 10; length of pectoral 14; longest dorsal ray l.S.o; length of 

 ventral B. Length of snout 06 hundreiltbs of heail; preoial length of snout, measured axial I y, 15; 

 interorbital width .'ria; diameter of eye 1-1; length of maxillary ( measureil from front of premaxillaries) 

 35; width between angles of mouth L'li. D. !t; I'. 14; \'. M; .\. and t'. 104. 



Snout very blunt, overpassing mouth for about t\Mi-fifths its length; mouth wiile, horizontal; max- 

 illary reachinga vertical from nnddle of orbit, a trifle shorter than length of snout; anterior half of each 

 premaxillary containinga very narrowband of small teeth, the posterior half, and the entire mamlible, 

 toothless. Also m A. japunims Schlegel, the mandible is toothless, although described and figured 

 with a band of teeth. Vomer and palatines toothless; prenuixillaries very iirotractile, but the maxillarv 

 lirmlyadnate, skin of head pa.-^sing over it without interrujition; u]iper and lower lips finely [ilicate as 

 in (JniodinnnUh. Posterior nostril an oblique slit innnediately in front of upper part of orbit, the ante- 

 rior in a short procumbent tube with the opening directed forward; a strong jirotidierance above eye, 

 a smaller one Ixdiind and above it; a pair of strong ridges running from occiput forward between eyes 

 to snout, the space between them concave; angle of lower jaw provided with a spinous process; preop- 

 ercular margin not free; opercle with a single low ridge and no spines; sensory canals of head furnished 

 wdth very few' minute pores; gill-openings wide, continued forward to below pupil, the membranes 

 wholly separate, free from isthmus; 4 complete gills, the fourth arch with a slit behind it; gill-rakei-s 

 short and thick, minutely toothed and a little movable, 10 in mnnber on anterior arch; vertical lindis 

 of all the ai-cbes aduate, or free for a very short distance lU'xt the angle, flu? horizontal limbs also 

 attached anteriorly, somewduit narrowing the slits; |iseudobranehia> wanting; brancbiostegals 7; skin 

 very delicate, easily broken, scaleless; lateral line present, but ini-ons]iicuous, conqiosed of a lew lan.'e 

 distant jiores. 



The anterior insertion of the dorsal tin is abo\<> thi- axil of llie pectorals, the length of its base half 

 postocular length of head, its tip rea(diing vertical from vent; pectorals failing to reai'h vent liy a dis- 

 tance nearly e(|ualing one-third their length; the vi'utral appears to be a simple filament, but on dissec- 

 tion 2 slender rays appear closely joined for their entire length, with a short rudiment at their ba.se; 

 they taper uniformly to their tips, w hich are not dilated and flattened as in japoiiirns. Jn the typi^ their 



