’ 
322 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
Measurements of Ditrema furcatum and Ditrena atripes in 100ths of length to base of cau- 
dal jin. 
| Ditrema | Ditrema 
furcatum.| atripes. 
Inches. | Inches. 
LIPS ROTAD IGE oA oe Sogo sco dany ssodies SeoSnads ssonbaE seen ocbosoUonano soos ceases 10.3 9.15 
Mencia base Of Caudal See ayes atmcal etm tale ele elal= lala mm teint af eet ee 8.18 7.35 
Body : 
LEGA OE degen ae = rn eesor6 6 Cac MOU OAS aOR COCO TEGOOTEG JOOUOC EMO a dad oS asd sane .39 - 38 
Messtherehtotetallsocaccec cece coccice seater sean cclsjeceememesice Seocso sos ae4sae 12 ih) 
Length of caudal peduncle from end of anal fin ..-..--..-- doa seboregaSssascoct - 167 23 
Head: 
THEM 355 6 Generics Ge CSOD GRO RSCOSOC CONT OSCR Suns Sb As os epcdd0 os seasaeansdEsas - 263 . 285 
Wadthroh interonbitallarea sec cce sess e\ceriee seas eames setae ise eneereeaelt 0 - 082 
en ohh \ofssnouts a2 Sse seelacisa sso as Melesiercnicle's sine owins Se sivisla niclseleseeinieceiee BON . 078 
Wenethiote ol ErAkOrs soo ses5 seen se oe ope aceie tiers ciaee ce Seas een cons -O1 . 018 
Length of maxillary.......-----.-..- Soap ee osueasoo s3aS50eCuabeEacodasScrensaot - 075 - 075 
enethof mandible. s<< esccccece + acs5cacq commana aches accuse acta eh emoesce . 075 - 092 
Di AMETELIOLLOLDLGE tow sasemacsoetlcceicne + Jean eceas cere toes es eae ceeieciaeeeeiae - 075 - 072 
Dorsal : 
Menojhivofabasesasecs titccs cece cece s cece ce veces ee ceeteesccinewescaheetenses Oly .48 
Benet non rub spinoverecmceeasies een ae meeee meme e ats ae eaelsetes cea eee ee ae eee - 085 - 085 
Hencghofuhichest Spine sosss eens sae once cea cae eacceeceences caocees (eicescae - 09 - 010 
ene nyo Mi SROSst Lay am eee painiase aes ic one ana aeee ee eeeb ris dmeniespinas etic 12 113 
Anal: 
Maen othiok, base % 055s ese aeeath sfoeigne walonine siswee Seisicnide bee cecsecese eek esti | . 30 275 
MONMES UMA ise hc cael aos cae dame eias eae celleoe eee sete tena ce Gna ceecns acesecee . 06 . 058 
Caudal: 
Middleliaye ieeeacete ce Selscessclc coors eelcer cides osscbeamnet ceeneecs seisccaicr 09 . 095 
Wpperdoben6-- asc bocot mas diecast hs atic ee essa ctsaces che = eee eate ees’ . 256 323 
EO WET OUOI So oaccotee sues esisn cba tease Senanececc nace Saacmic enpe new easeecene - 24 24 
Bectorsals leon this sccmessce cktb ss eo nestexieee sete ste se -ebednceeddes teehee eens -25 26 
IWenuralavlen othe coccoeccs tenon ecm analsccmadace onl ee aalineee ciloe aes cesar eee eee eee Sllsts) .176 
ADD OTS al eee ae erase Seca a oe ie eats wistaee Sein eau acs ee a ane ee ee a See X, 25 X, 24 
BACT Neer Sat Seis cinta sees sales. alee ou rec ero Sark eae sis elas Geass BS eee oa Cae none HL, 33 III, 29 
Mibessinelateral line ya32 cas. hie sted seek atte coe beeen Soaks oe ac seees Ee 70 71 
Rows of scales above lateral line ......-..... oe Meitle stiae saee eae He cas oes eae anes 5 5 
Rowsior scales below lateraltline <e3 353.5. 2400. ss a sss | 13 13 
The present species was described from two specimens, similar in size, 
obtained in the San Francisco market, and probably caught in Monterey 
Bay. Later, about 200 others were obtained at Monterey and Santa 
Cruz, but the species has not yet been noticed elsewhere on the coast. 
_ We refer this species for the present to the genus Ditrema, of which 
Phanerodon Girard is considered by us a synonym. 
We have not seen the Japanese type of the genus, Ditrema temmincki, 
but in external characters at least it agrees with Phanerodon. 
SAN FRANCISCO, CAL., March 14, 1880. 
DESCRIPTION OF A NEW SCORPZNOID FISH (SEBASTICHTHYS 
MIALEIGEER), FROM THE COAST OF CALIFORNIA. 
By DAVID S. JORDAN and CHARLES H. GILBERT. 
Allied to Sebastichthys nebulosus and more remotely to Sebastichthys 
vexillaris. Body oblong, moderately robust, the profile with a regular 
but not very steep slope. Mouth moderate, nearly horizontal, the jaws 
equal when closed, the upper jaw somewhat emarginate. Maxillary 
reaching to near the posterior border of the eye; premaxillary in front 
below the level of the eye. Preorbital moderate, its neck about one- 
third the width of the large eye, with an angular lobe. 
