FISHES OF HAWAIIAN ISLANDS. 697 



seiiKory papillif in tlu' {irocivf Ih'Iow tlieiii; u ><iiiiilai- double series of sjiiiums plates aecoinpanies lateral 

 line on infero-lateral aspect of tail, these, as well as those along lateral margins of disk l)earing clusters 

 of tilaraents as well as spines; lower surface of ilislc wholly smooth, save for a band of small spines and 

 minute prickles which bound lateral line l)elow; lower surface of tail, as far forward as vent, every- 

 where minutely prickly: the paired Haps which conceal the sensory papilke are borne upon horizontal 

 projections from tlie accompanyinf; plates; flaiJS not narrowed at base, and bearinji a fringe of short 

 filaments along their free edge; the arrangement of the mandibular series of Haps agrees with that in 

 DihninrliiiK: in addition to the pa|iill:e which occupy the bottom of the mandibular groove, there are 

 '.i accessory papi'.kc on each side the median line, which art^ placed upon the anterior margin of the 

 groove, with their paired Haps arranged laterally, n(jt transvei^ely to the groove as in other papilke; 

 aeeessory painlke [jlaced contiguous respectively to first, fourth, and fifth of regular series. 



Distance from origin of dorsal to base of caudal equals one-third its distance from tip of snout; 

 when declineil, the dorsal fin reaches slightly more than half its distance to caudnl base; base of 

 second anal ray midway between vent and caudal base; tips of anal rays reaching to or nearly to base 

 of caudal when the fin is <leclined; ventrals reach a little more than halfway to margin of disk. 



Color in life, light olive above, shading to pinkish brown around edges of disk, all the upper parts 

 covered with coarsely reticulating reddish brow'n lines; under surface light brick-red, finely dotted 

 with pearly white; a series of elongate silvery .spots follows line of papilUc on mandible and .sides of 

 disk, thosi- on disk larger, the filaments .straw-color; caudal edged below and behind with orange-red, 

 the fin otherwise white, marked with 3 indefinite yellow cross-bands which are dusky in their dorsal 

 portions; pc^ctorals, ventrals, and anal light brick-red, the |)ectorals lighter than tlie others. In the 

 smallest of the cotypes, 44 mm. long, the caudal and pectorals have a broad tcniiinal black bar with a 

 narrow white edge, and the dorsal has a median dark blotch on its anterior rays. No note was made 

 of the color of the <lorsal in life; in s|iirits, it is n(arly uniform dusky, with a light margin. 



Specimens were taken at the following stations: Nos. .S.Slt), off the south coast of Oahu. .'lii to l-'ll 

 fathoms; 8S4(>, off the south coast of Jlolokai, liO to (14 fathoms; ISK.i.t, off the south coast of Molokai, 

 127 to i;iO fathoms; .S8.'iH, Pailolo Channel, 127 to IL'7 fathoms: .S.s.W, Pailolo Channel, V2X to l:W 

 fathoms; 4004, off the nortlieast coast of Hawaii, (>:! to 107 fathoms; 4076, off the north coast of Maui, 

 57 to tW fathoms. 



Dibranchus erythrinus, Jiew species. Fig. 27.5. 



Type, 172 mm. long, from station .".O.s."i, \icinity of Kauai, depth 4:;(l to 477 fathoms; tyi)e. No. 

 51(142, r. S. Nat. Jlns. 



Length of disk (iO hundredths of totjil length without caudal; greatest width (i2; width of luise of 

 caudal peduncle 17; distance from anal opening to base of caudal 41; diameter of eye 12; least inter- 

 orbital width 11; width of tentacular cavity 7.5; width of mouth 80; greatest depth of head 2t); ba.se 

 of dorsal !); length of caudal 21; longest pectoral ray 22: length of ventrals 17. H. (i; A. 4; I'. 15; 

 V. I, 5. 



Cejihalic disk broadly ovate, the greatest width exceeding distance fiom tip of snout to gill-open- 

 ing by a distance equaling half diameter of orbit; occipital and frontal regions elevated, evenly conve.x; 

 profile descending rapidly over anterior half of orbits; rostral region short, cubical, scarcely i)rojeet- 

 ing beyond mouth; tent.acular cavity triangular, much wider than high; the broadly expandeil tip of 

 the tentacle trilobate; mouth very wide, the distance between angles slightly ujore than half length of 

 head; teeth minute, in broad hands wdiich nearly reach angle of mouth in both jaws; vomer, palate, 

 and tongue edentulous; anterior gill-arch with large rakers but without filanu'Uts. 



ISathybial cliaracteristics well shown in the yielding skeleton and thinner integumcnis oi iu-ad; 

 dorsal surface of head, trunk, and tail everywhere thickly beset with tid)crcles, of which a large and 

 a very small size predonduate; all of them are strongly ridged, each riilge fre(|uently terminating at 

 sumnat in a distinct spinelet, 1 or 2 of which may <'onsiderably exceed others in length. The larger 

 tubercles are evenly <listrihuted and \\ itliout definite arrangement on disk, those on tnmk and tail 

 dispo.sed in 4 lengthwise ."eries on ea<-h side, the 2 lower series fornnng l)etw-een them a groove for the 

 lateral line; the smaller fuherdes are minute and cover ilensely the interspaces between the larger; 

 margin of disk, snout, and superior orbital rim provided with sindlar tubercles with bifid, trifid or 

 multifiil tips; no esjiecially develojicMl spine on li|ioron upjier surface of snout; spines on margin of 

 disk equal to tho.se on sides of tail, anil but little larger tlian those on posterior central jHirlion of <lisk; 

 subopercular s]iine small, beset with sm;iller spines turned in various directions; lower surface of disk 



