304 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
Caudal fin narrow, forked tor more than half its length, the lobes rather 
pointed. Pectoral fins small, not reaching to the tips of the ventrals, 
which attain the anal. 
Fin rays: D. X, 18; A. IIT, ZO. 
Color in alcohol silvery, strongly flushed with rose-red, darker above. 
Top of head orange. A very distinct cblong chocolate-colored spot above 
the lateral line at the origm of the soft dorsal fin. Another much smaller 
one just below the end of the soft dorsal. Fins immaculate, slightly 
tinged with reddish. In life the color was silvery, with the rosy flush 
less distinct. 
This species is known from a single specimen found by Mr. W. N. 
Lockington in the San Francisco market. A few others have since been 
obtained from sweep nets in deep water. 
In its relations it is intermediate between the species which we have 
taken to be Brachyistius frenatus Gill and the common Cymatogaster ag- 
gregatus. ‘The frenum of the lower lip is too little developed in the large- 
scaled Embiotocoids (Abeona, Cymatogaster, “* Brachyistius”) to be used 
for generic distinction. Abeona is well set off by the tricuspid teeth, 
but the dentition of Cymatogaster and Brachyistius is essentially the 
same, the slightly more incisor-like form of the teeth in Brachyistius being 
scarcely definable as a generic character. 
The numbers of fin rays do not afford very good generic characters, as 
will be seen by the following enumeration : 
Dorsal. Anal. 
CiymaltogastenTaggnegauuse eas eee ee ee eee eee IX, 20-21 III, 22-24 
EDR OCIUIPISTUUSRT OSACEUS Ee setae t= eee eran cere X, 18 10 Gf 20 
BR AONYIS USM TEN CUUS oe eee ere eee aan eee eae ene Vell 15 III, 22 
ADCO: GUTON Dee te ae Ee eee ene Bae ey ene se Vill, Wate III, 20 
AVEONGMNINUNG fA oe Nate Boake te etn Meee oe eee IX, 14 HI, 16 
We therefore provisionally refer the present species, with Brachyistius 
Jrenatus, to the genus Cymatogaster. 
Table of measurements. 
Extreme length -...--- pe ates Sores Seema ele eet eee er ta ae eyelet 5.92 inches 
Wengthto: basejoncaudalesnessee 4 2= eee eee eee eee eee 4.70 inches = 100 
Body: 
Greabest! Cepia aa he A Sa RE gol ce Pan lg IRL Ap 40 
Iheast depth: of tal: 325 ee ee eee oe pes tesco te ra $Y 114 
eneth of candalpeduncle: s52 te. See ieee ee tee eee eee: 15 
Head : 
Greatest length... 2523. coe nce n case ee ies Soe ee PEE eee eens eee 30 
Wadthrotanterorbital area ss2--- see ee Osco eee eee Ce ee ne nee ene ae 8 
ema thwol snot). o'2 5.) eee eS eR ee RO et nes oe a en are 64 
Hoon sthyotmaxt ary: 2.0 seo een se ccpace < ceee Cee eee eee Bhe 
DiAMELOLOL.CVGr 22k sexi Mct hie hfe noe, Sone See AO eee een one eee oar 104 
Dorsal: 
Wer SG HEO RR ASEE 3p OS = oc Los arciar e ach eee eta et ees ere cree ee 50 
Heirhiotmighest spine... ..- /2-ccssoseoceae sees sess cases eeeeeeeaee 15 
Heightiot tongest ray soc 0s. 5 poe Se Sere eerie me ctee eae 15 
