PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 305 
Anal: 
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Peel SMEMPIEGINGVENLUMS I 22152) ce ee bale accee occ css acs ccc cette cn nkee 25 
Caudal: 
itonauu ob middlerays: 2. 2.(s-o2 wise o. Sse- Uledecen iaedeatelese welled 13 
EEL OMOULOLIERYV A, oor iays. 6a) = on met op traces stewed ~bweee emcee) se 26 
i ARERR OR UADE eo le wk oe Ea no ann aa EE an aie ot wine dodecmerce 27 
1s Ll iu, WELLE Ge eT iia ge eet ya a 23 
REDLINE wosice c's RSE SA a oe se hi RSS a i X,18 
eae IMU raP eae meySee ie? See efetece Sees SLE AE JE Te III, 20 
Soar Ea reer rere segis ert  e2|.f hed}. bass siecle stig. 2 kssed Us 2. Se OME 6-50-16 
SAN FRANCISCO, CAL., March 2, 1880. 
DESCRIPTION OF A NEW SPECIES OF DEEP-WATER FISH (ICICH- 
THYS LOCKINGTOND), FROM THE COAST OF CALIFORNIA. 
By DAVID S. JORDAN and CHARLES H. GILBERT. 
Icichthys gen. noy. 
Allied to Icosteus Lockington, but the body lower and more elongate, 
not compressed at the bases of the vertical fins. Head moderate; eyes 
lateral; mouth terminal, little oblique, with small, sharp teeth in one 
Series, in the jaws only. Gill-openings very wide, continuous.  Gill- 
rakers long. Pseudobranchie present. Branchiostegals 7. Body en- 
tirely scaly. Lateral line continuous, wrarmed. Bases of fins without 
spinules. 
Dorsal and anal fins long and low, composed of soft rays only. Pee- 
toral fins moderate. Ventral fins small, thoracic, I, 5. Pylorie ceca 
about 6, large. Bones all very flexible, cartilaginous. 
The scaly body fully distinguishes this species from Jcosteus, with 
which singular genus its affinities are intimate, although the known 
species do not resemble each other closely. 
(Etymology: 2:zw, to yield or submit; ¢7@bs, fish—in allusion to the 
flexible skeleton.) ° 
Icichthys lockingtoni sp. nov. 
Body oblong, moderately elongate, somewhat compressed, the caudal 
peduncle rather slender. 
Head moderate, compressed, with vertical cheeks, rather broad and 
slightly convex above, the snout abruptly descending, hence bluntish 
in profile. Profile nearly straight from upper part of snout to the nape. 
Mouth moderate, little oblique, the slender maxillary scarcely widened 
at the tip, extending to rather below the front of the pupil, the anterior 
edge of the premaxillary on the level of the lower rim of the eye. Lips 
thin. Upper lip not protractile. Premaxillary tapering backward, not 
forming the whole margin of the upper jaw. Maxillary behind slipping 
entirely under the membranous edge of the preorbital. Preorbital rather 
Proc. Nat. Mus. 80 20 Sept. 28, 1880. 
