6. GINGLYMOSTOMATID^:. 17 
canus (vStorer) Gill) as distinct troin the European, but no reliable dis- 
tiiK'tions have been ]>ointedbut. 
(Si/iuiliiH nraiithian \j. y at. : AcaiilliUia amcrkuitux Stonn-, Synopsis, oUG: .Icaii- 
thian amertcdnus Stoi-<'r, Fisli M;iss. 2'^2 ; Acanthia-^ nihiari-s (hinther, viii, 418. ,'i<inulus 
fnicklii (Grd.) (Jill, IVoin tlic I’ncitic coast of the United States, is considered by Dr. 
GiiiUlier and otliers as tlie same sjx-cii s ; iS'yn'artr (Gcnaf/u'c.v) s/n'/r/ii (iirard, Proc. Ac. 
Nat. Sci. Pliila. 1854. 17G; siichlii Gill, Proc. Ac. Nat. Sci. I’lula. 186*2, 499 . ) 
12.— CE3kTRO!i»<l'YMi\i;S Docaoe A Capello, 1864. 
(Bocage A Gapello, Proc. Zool. Soc. 1864. *2(33; iy\w C< iitroscyiiiiiux (ta‘lfllej)ii!i liiw. A. Gap.) 
Dorsal tins each with a spiiWj which is hidden hclow fhesl'in; mouth 
wide, but little arched; a h>ng', deep, straight, oblique groove on each 
side of the month. Teeth of the lower jaw oblhiue, with the ])oint more 
or less directed outwards. Upiter teeth lanceolate, on a (piadrangular 
base, with a single cusp. Spii-acles widt*, Itehind the eye. Gill-openings 
narrow, (ziv-oov, sjtine; an ancient name of .some shark, from 
rTxuyyor, a lion’s whelp.) 
IT. 1'. «*.«)Baoae5»is Borage A. t'apello. 
laibial groove prolonged forwards, but separated by a broad space 
from that of the other side. Epper teeth very small, narrow and lan- 
ceolate. The distance between the nostrils is rather less than I the 
length of the pr;eoral i)ortion of the snout. Lower angle of the pectoral 
rounded, not produced. Dorsal tins short, especially the first, the 
length of which (without the sjune) is only about its distance from 
the second. Extremity of the ventrals below the end of the second 
dorsal. Seales on the head and nai)e with strim, the others smooth, 
with a de])ression at the base. Uniform blackish brown. {Giinther.) 
('oast of Portugal and neighboring i)arts of the Atlantic, a. .specimen 
taken near Gloucester, Mass. 
(Boc.-igc & Cupd'.o, Proc. Zool. Soc. 1864, '263; Crutrophvrus caAoleikx GiiiiUicr, viii, 4*23.) 
SuPEK-EAiMiLY SCYLLTOIDEA. 
^ [ The ^SeijJlioid tShdrl's.) 
Family \ I.— GINGLYJK )STOMATlD^,. 
[The iN'nr.se Gh((rks.) 
Sharks with the first dorsal above or behind the ventralx ; no spines; 
anal fin pre.sent; caudal fin bent npwaids, with a basal lobe; mouth 
interior, with small teeth, in .several .series; nostril continent with the 
month ; nasal valves of l)otli sides forming a quadrangular llap in front 
Bull. Xat. Mus. X(n 1(J 1' 
