342 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
Current number of specimen... 2.55 L060. 2265 - Se me denee enw ee PAYG Sse) | Seoaee Gooscasenjc cas 
TOR ERITINY BomebdcoqosnsosshondaneSecedaend dHSStoSscauasgsaoees 871. 871. 
Milli- (100ths of! Milli- | 100ths of 
meters. | length. | meters. | length. 
Extreme len rin eee ae ones a totes oe coe t essen oe 1B ligaoo semanSe PPA eas coccao 
pene to end of middle caudal rays....---.---.----.-------- 111 100 102 100 
ody 
Greatest height of middle dorsal oe : Dad euleaseurtecics 37 
Greatest*width=.- Sos c22-4 -4ee--.---- Bt : Wit” \eeiascnecee cose ace ce 
Meastherehs Of tail - = 2 ooo. ewes os ninepmia mae Sm oe eae ; zy 91% “|Seecpiaecets 9 
Head: . 
Greatestilentth)-2oc-6 ace wee ep pee eemee cace cmsiy sa eaabet| es. oases OY EP ane ae 24 
AV IdbhrotsinteLorpibalaredicc cece. cee Behcot ace tee ee emrc |e eee ae My. ieee cone 1 
Leneth of snout to upper ©ye~-- 2... 2. oe cbs oo ese ns! ee ce cee Digs. taceteas 5 
Length On itm byes 6 SB SS Ce Ac eeao 555/35 ssuadaned beyoacboee Taco Uso ctaee arate 7 
Length OffMAaNdibles seFeL. Lace seas oo eeck aoe eee Raree areeeen as LOS QF | esas Ee 10 
Distance from snout to lower GIe) Gentosessescessgusess! Ss SUBS ee PS nee eee 4 
MiamMetenOLsorpib, LONPUME MAN se cscclssciacsicesis alm acae | pees 6 wise 6 
Dorsal (spinous) : 
Distances from snont) site shtle sec. oak eee eee 2S BMD tis cesk Sed 5 
ILRI OE WER G\ cece yo ee h) 2 “pe opopa sone oso ebugeSedanEl|oa-reaeoat WO Peecossae. S552 
Greatest height, posterior 4. -'-- 2 ¢.2 S05 550-5. See Mae ee TGP OR | Re SE: 13 
Anal: 
DWistancotLome anoUlts 2 se wee ope Wlakimia tote Seba ase ees toda Soe ee kee 28275. esas 24 27 
Hen Op ntOL ASO. ase see oa we emai ane ae nese peer a- aia ziccta| cae an selec 1) eal SSeS lS Aas eaes 
Height at longest ray, posterior $1 222,61), Ss Se As tetas = er 15 
Caudal: 
Henoth of middle Paysi-ia-2 ssst ec osecceeee cee te see eses siete 252 50S 2ascne ste 23 
Pectoral: 
Distancesiron snout. 2-2 ce ce oote cece ces oboe e cles cesllaceoeece oe 7s yap onl ee t= a 25 
DOD ORB, aces cys cis pete ae enema staat po odaorre seme oP seoeawess LOT Led. tact 17-9 
Ventral: 
Distance from (snot << ceies2t 4. Sess Some dnp eopeben cess leeences ee - DBs aac ss 21 
en oan eee tn oeitem tier ams cinerana ene seimetse seer peecine oer Tih Qi SeeSsoaSe 10 
DMorgalk pee2cheesete. Fe eh OS bel Bese cose ee eet eerie Raed Agen seeeee 82 
SANTA Eset Beamon bw Oda scleig tas ce sacle maatend Subic sews cceen eo allaccecabece BY rasessccet 67 
Coudal..d2 2 \ sys Neecc. oe ose os ich. 4h fete Sepa as chee sep ee eke AG i 0) ess ese esl See s5 stern 
I ELECCUIT) Ge With eh St Se ED Sg Re, LPR Oe ARS TL mii oi eh | aa a Benes 0 Fiat eects 9-7 
Wentral’ts: rte Se eiyy ot ees 4s ieee epee ts cy ghoe Eee pee te ae es 5 
Number of scalesin lateral line, from root of ventral obliquely 
DECI sca oom Beer eia certs toon ed =.as cine ee ee EROS adhe dee eae 40 7h SS ese 40 
Number of transverse rows above lateral line.......-..-----.|.-.---.--- | ADORE ARIE eIoge Cocke 1 
Citharichthys unicornis, new species. 
Extreme length of the specimen described (No. 26003) 69 millimeters. 
The greatest height of the body (47) is slightly less than its length, 
and is about 44 times its least height at the tail (11). The body is much 
higher than in C. arctifrons, its greatest height over the pectorals, the 
contours then descending in almost straight lines to the base of the tail. 
The thickness of the body (6) is less than in C. arctifrons, being contained. 
nearly seventeen times in the standard length. 
The scales are thin, deciduous, smaller than in C. arctifrons. There 
are about forty scales in the lateral line, which is slightly curved over the 
pectoral, and, as nearly as can be determined in the denuded specimens 
before me, about twelve rows above and twelve below the lateral line at 
the broadest part of the body. 
The length of the head (25) is one-fourth of the standard length and 
about three times the diameter of the eye (9), or the distance from the 
snout to the upper eye (9). The interorbital space is wide (4), equal to. 
the length of the snout, and diagonally crossed by a strong ridge, a con- 
tinuation of two ridges which form the upper boundary of the lower 
and the lower boundary of the upper orbit. 
The length of the maxillary (11) is less than half, that of the mandible 
' 
