, 
38 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
irene jhrofismout front O Mths aches eens = aretesio eects sere minis satiate oe tail 22 
Wem suhvote 10s tars eee eyecare sala om ee ale ea eet nae nee tee 07 
Widthiofe anterior nasal flap =e pee tons jace crsss senha hick setae Stoel ree oe - 96 
Wenothiotmnasal flapyescssecn-ssss2acaecssesscesens=s- EE PE eae Seas . 04 
Mistance trom snouptomiTshorsaleses ee ceases nee sae ee aaate lee nena 1.565 
Menothvoteyascrotirst dorsale see eee mast aee Seee seni neem =e eesete . 095 
Hero hiiotlinsiidorsalesestsea sence ee cetse cee sae abide ete alone loewic see taerme nt .18 
EniveEvia leben weened OFSalS mete men ee leehs Per ame Os cele -haremonie ae sea eee inate . 155 
USMC OIE KenL OWOresHNle Soe ee ee eo Seon He ene oroo casas Sees peas olsd=e . 10 
Meiohtiorssecondy dorsal sae sae) = saya sateen foe wie ss ao eh ais clcletns See se ae ee sete 51) 
EIGN Ore CommGleWe ocd Shee Ske Acs Ssbn Used peae edad aaa mes coao Seencceatas Gisace 175 
Pencnh of upper POrnomor Cand ales a cae = ee acts sees see eee eae . 455 
Distance trom snout to end of base.of pectoral 22.2252 --.-- oo eses ee] = essen .83 
enc thiotbase Of wenulalStsjane eee ee aaecciceoeisse = reas eee ere ae . 28 
Wit am ore WS MENS EE OA aS on papeeo.sces Shon aeba Goad oobe Sols poesiscas secs ecaas . 20 
Length of claspers ---- .-- 20+ .----- 2.2220 22-2 - 2 nets nee coe Hee eee een . 36 
The type of this species, an adult male, was taken at Santa Barbara, 
Cal., February 8, 1880, by A. Larco, an Italian fishermen. It is num- 
bered ——— in the collection of the United States National Museum. Mr. 
Lareo states that this species is not uncommon about Santa Barbara in 
spring and summer. 
This species is probably related to Platyrhina sinensis, but it has little 
affinity with Platyrhina exasperata, already described by us, from San 
Diego. In color, form of tail, and character of the dermal covering it 
resembles the Rhinobatide, and its afiinities with Syrrhina, of the latter 
‘‘ family,” are evident. 
DESCRIPTION OF A NEW SPECIES OF “ROCK COD” (SEBASTICH- 
THYS SERRICEPS), FROM THE COAST OF CALIFORNGA. 
‘By DAVID S. JORDAN and CHARLES Hl. GILBERT. 
Body rather robust, heavy forwards, compressed behind, the caudal 
peduncle short and rather slender. Head large.. Mouth large, rather 
oblique, the maxillary reaching to opposite the middle of the eye; the 
premaxillary anteriorly on the level of the orbit; jaws about equal, in 
the closed mouth; teeth, as usual, in villiform bands on the jaws, vomer, 
and palatines. 
Top of head with the spinous ridges very thick and strong, their tips 
bluntish, turned upward and outward; the spines on each side placed 
nearly ina right line, so that the edge of the crown seems somewhat 
regularly serrated. 
The following pairs of spines are present: nasal, preocular, supraoc- 
ular, tympanic, occipital, and nuchal. The coronal spines (found in 
S. auriculatus and S. ruber) are wanting in this species, as are the post- 
ocular spines (usually present in S, pinniger). Interorbital space be- 
tween the spines narrow, flat, and coarsely sealed (the elevated ridges 
found in S. nigrocinctus being wanting). The tympanic spines are 
