FISHP;s OK HAWAIIAN ISLANDS. Oil 



Halosauropsis kauaiunsis, m-u spci-ics. Plate 74." 



Type, (j.Vi iiiiii. loiiir, Irniii slalinn -|(ll.s, vicinilv nf Kauai Islan.l, .Icpth 7l'4 to .S(I4 fathoms; tvpe 

 No. :.l(ll--', r. S. Nat. Mm.-. 



I,iMi>;tli of lu-aii 4(1 Iniiuhciltli,- of (li.-^taiii'c from tip of ^luml to vent: loiifiitinliiial <liaiiu'tcr of 

 orliit '■>■, iiitt'i-orliital widtli ilP>; prcociilar Iciijith of snout Hi; preoi-al length of snout 4; Uai^jth of 

 maxillai-y i:i; l('ii.i,'th of mamlililr l.S; L'rcati'st <l('pth of boily 20; distance from tip of .snout to front of 

 dorsal 71'; distaiicc from tip of snout to hasc of \entrals (iti; longest pectoral ray 21 ; longest ventral ray 

 12. IJ. 11 (including rudiimntary ray i : \'. H; I'. 14 or I.t; enlarged scales between gill-oiiening aiul 

 vent 22 to 2.5; about .'{.") to 40 scales in a mcilian series from occiput to front of dorsal; braiiohiostegals l.'i; 

 sill-rakeis b • IS on outer arch; pyloric c.eca !». 



I'renuixillary band of ti'ctb half leiigtli of ma.xillaiy band; teeth in both jaws large, arrow-shaped: 

 palatine band tapering lo a point aiOeriorly, and there separated by a very short interval from its 

 fc4low; at its posterior end. it is nearly as wi<le as tlii^ preniaxillary baud, and is separated from the 

 narrower jiterygoid band by abcjut .4 its own length; pterygoid Viand extending far back into the 

 mouth, and very narrow; tongue smontli; a wide band of teeth on the basibranchials; head scaleless. 

 uilb iheexception of the cheeks and a narrow .strip above the ojiercles, which are covered with scales 

 like those on body; vertex gently archi'd transVei-sely. In adult.s the gill-rakers are short, the longest 

 about .4 diameter of eye; in the young they are noticeably longer, more than half as long as eye; there 

 are .5 or ti on the vertical limb and 17 to 10 du horizontal liinT> of outer arch, including all rudiments. 



Origin of the dorsal slightly behind noddle of ventral tin, its height a third greater than th(> 

 li-ngth of its base; base of ventrals b(4ow eleventh scale of latj^ral line, and nearer head than vent by 

 I wo-thirds its own length; its outer ray shortened. In adults the inner ventral rays show union at 

 base only, but in younger individuals they are joined by membrane nearly to their tips. Pectorals 

 long, l.t) in head, and falling but little short of vertical from base of ventrals; height of longest anal 

 rays equal to half length of snout and orbit. 



Scales of lateral line much eidarged. I'hotophores very narrow, vertically elliiitical. 



(.'olor dark brown on back and sides, many of the scales with a light pearly spot at base; under 

 parts, including snout, sides of head and subpectoral region and gill cavity, blue-black; ventrals l)lue- 

 black; pectorals and dorsal dusky at base, whitish on terminal ])ortion; anal dusky, lighter at base. 

 Young specimens have a lilack vertebral band behind dorsal fin. 



Taken at the folli>wing stations: Nos. .•i8,S7, off the north coast of Molokai, •")•")•_' to .SOO fathoms; :i!l77, 

 \icinity of F.ird Island, 87(i to (?) fathoms; :5iKSit, vicinity of Kauai, 8S.") to .VMI fathoms; 401.^. vicinity 

 of Kauai, 724 to 804 fathoms; 4019, vicinity of Kauai, 400 to .'viO fathoms. 



//. knimletijiis is most nearly related to //. incilinTo^lris ((iiinther) from near tlie I'hilippiiu' Islands, 

 but the scales are much larger in the latter. 



Halosauropsis verticalis. m-w s|iecies. riate75.'' 



Type, 20.') mm. long, from station 4141, vicinity of Kauai, depth 4.i7 to fi.S2 fathoms; type, Xo. 

 .')104.">, r. S. Nat. Mus. 



Length of heail 40 hundredtlisof distance from tipof snout to vent: longitudinal diameterof orbit 

 .S; iuterorbital width 0; preocular length of snout 20; preoral length of snout 7: length of maxillary Ui; 

 length of mandible 20; greatest deiith I.t; distance from tip of snout to front of dorsal 77; distance 

 I'lom tip of snout to base of ventrals 72; longest pectoral ray 2.S; longest ventral ray K!. D. 1 1 (includ- 

 ing anterior rudiment ); V. 9; P. 14; eidarged scales l)et ween vent and gill-opening 2.">; about 40 lo 4."> 

 siales on median line of back before dorsal fin; branchiostegal rays 12; '_'ill-rakers li ■ l.S on outer ;ircli. 

 the longest two-thirds diamet«'r of eye; pyloric ca-ca 9. 



The greatest depth is at occiput, one-third length of heail; snout longer than in //. k-nuaietixiit; hori- 

 zontal diameter of eye slightly exceeding interorbital width, equal to ..S the postocular part of the heail 

 (J in /,((»(( i>)(.«i.x of equal size, in which it exceeds interorbital widtli by .2 its length); occiput deeply 

 concave, sending forward a luirrow concave groove which tapers to a point and thus terminates 

 slightly in front of nostrils; outlines of the brain very conspicuously marked on the oci-iput; maxillary 

 extending slightly beyond anterior margin of orbit; premaxillary constituting slightly le.ss than .4 of 

 the dentary surface of the upper jaw; teeth distinctly arrow-shajied, constri<'ted at a point below tip, 

 then broadened; palatine haixls with a straight inner and a convex outer margin, tapering from the 



u Altlinnmiliii hiim/j ».<(.< (Ill |ilille. hy error. I' j/,lr,intniliit i-rliriilis iil\ |.lmv. Ijy errer. 



