630 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



Spinous ilorsal evenly rounded; fourtli spine longest, equaling height of soft rays; liftli higlier 

 than third; second anal spine much longer than tliird, and also longer than longest dorsal si)ine; 

 ventrals extending beyond origin of anal: up|ier jiectoral ray and the lower 10 rays simple, the others 

 branched; pectoral not procurrent, some of the simiile lays of the lower half the longest. 



Scales weakly ctenoid and somewhat dci-iduous on sides of body, cycloid on belly, breast, and 

 prepectoral area; a few ctenoid si-des on np|K'r part of cheeks and opercles, the heail otherwi.* scale- 

 less; skin of sides and toi) of head quite generally covered with minute papilla-, most of which inclose 

 a central prickle, these found even upon scales of head. 



Color in life, snout, upper part of head and lower jaw, purplish; preopercle with a greenish 

 spot; occiput brown, tinged with brassy; sides of body mottled with lilac, brick-red, vermilion, green- 

 ish, and pearly bluish white; a whitish streak i-unning from belly oliliquely upward and backward to 

 dorsal tin; dorsal mottled with red and lilac, parts of it translucent, the tips of the s]iines usually 

 white; caudal clouded with vermilion, the lower part tipped with lemon; anal clouded with lake-red, 

 tipped with lemon; pectoral lake-red, uppt'v part yellowisli olive; ventrals lake-red; throat suffused 

 with lilac; belly white. 



Six spe<'imens were secured, all from station .';S4i). 



Peloroi^sis. new genus. 



Allied to Sforjuniiijtxin, but wi.th head and belly closely compressed, the proximal half of rostrum 

 much contracted, the scales all cycloid, the head naked, the belly and breast completely scaled, the 

 pectoral tin not i>rocumbent below and the third dorsal spine inucli produced beyond the others. 

 Pelorupsis tiill)cTt. new kctius of SrnriKfnid.r iArnnp.i). 



Peloropsis xenops, new species. Fig. 245. 



Type, 152 nun. long, from station )!S72, Avau Channel, between Maui and Lanai islands, de])th :V2 

 to 4S fathoms; type, No. 51604, U. W. Nat. Mus. 



Head 47 hundredths of length from tip of snout to liase of caudal; greatest dei>lh 411; least depth 

 of cau<lal ]ieduncle 12; greatest thickness 22; diameter of orbit il; interorbital width 5.5; length of 

 snout 18; thickness of basal portion of rostrum 3.5; length of maxillary 23; length of longest (third) 

 dorsal spine 35; fourth spine 25; eleventh spine 11; twelfth spine 14; longest soft dorsal ray IH; first 

 anal spine 12; seconil anal spine 22; third anal spine 21; highest anal ray 27; length of cauilal 33; 

 pectoral 34; ventral 21). D. \ii, 9, the last ray cleft to base and appearing like 2 rays; A. in, 5, the last 

 ray cleft to base; 1'. IS. Tubes of lateral line bearing no definite relation to the scales, 23 in mmd)er; 

 scales in irregular series, almut 70 vertical rows aliove lateral line. 



Body everywhere clo.sely compressed, greatest width (at oiiercles) scarcely half the depth; region 

 betw-een eyes and nostrils uniformly contracted and compressed to a mere keel, snout in front and the 

 interorbital behind abruptly widened; the interorbital siiace very deeply channeled, without ridges, 

 its wi<ltli but little more than half diameter of eye; occipital region much contracted immediately 

 behind orbits, upper half of orbital rim jironnnently elevated and separated from rest of head; nasal 

 spines small; low preocnlar, supraocular, an<l postocular spines present, and a high compressed parieto- 

 nuchal ridge, consisting of 2 fused spines; occiput with a quadriingular depression a little below level 

 of interorbital groove, separated from this and other adjacent regions by low ridges; a jiairof shallow 

 cup-like depressions on sides of interorbital space below that portion of supraorbital rim which lies 

 between supraocular and postocular s])ines; a small and a large supraocular spine, ami one behind 

 middle of orbit; a wide excavated space intervenes between orbit and subocular lidge, which hears a 

 series of 4 low spines directed backward: the ridge joins preopercle nearly midway between hrst and 

 second jireoiiercular spines, which are short, triangular, ecpial in length; a shorter thii<l preoj)ercular 

 spine present, and a slight protuberance representing fourth spine; margin of preorbital with 2 small 

 lobes,, each provided with an indistinct spinous point; head, body, and fins well fuiiiishe(l with cuta- 

 neous flaps; on head they occupy the usual jKisitions, in connection with nasal tube, supraocular and 

 preocnlar S])ines, lobes of preorbital, and maxillary ami mandible; on sides, the largest tlajis are along 

 lateral line, smaller ones being variously scattei'cd; broad Haps are attached to tips of anterior dorsal 

 spines; smaller flaps and filaments scattercil over dorsal and pectoral lins; mandihle protruding 

 beyond snout, its tip with a short symphyscal knob: maxillary very broad, reachinga vertical slightly 



