62 CONTKIBUTIOSS TO NORTH AMERICAN ICHTllYOLOOY IV. 
“31 (Zi).— Eafinesqiie. 
“ (Kotidanns Cuvier.) 
..(Raflnescinc, Caratteri cll AlcuA Nuovi Generi, etc. 1810. 14: lyRe 
Liunteus.) 
R Branchial apertures six on each sUle ; otherwise essentially as in nep- 
trmeUm. Two species known, (cf, six ; «rx«c, bend or sums ; or gi - 
opening.) , 7 . 
O 41 (t). SI. corin»s Jordan & 6 ilbert.-S/.<.«!-«o«l Starl. 
oColor almost black, unspotted; a grayish lateral streak. He. 
large, broad, depressed and blunt. No medi.an tooth in '>1>1'“ 
About six pointed teeth in front of upper jaw, all entire and without 
basal cusps. Next three teeth with entire edges and ^ ® ® 
the outer margin. Eem.aiuing teeth of upper jaw serrate on the inner 
margin, and with two or more basal cusps on the outer. ^ 
of lower jaw very sm.all. Other teeth with ‘^’Y"'^'’aTadulfs ser- 
largest, the others regularly simaller, the inner edge in the ad Its 
rated Tail long, twice as long as head, a little less than oue-thiid the 
tl^length. ScLles on upper edge of tail enlarged. Monterey to Pn- 
get’s Sound. 
“ (Jordan & Gilbert, Proc. U. S. Nat. Mas. 1880, 352.) 
“32. IIEPTKANCBIIAS Kafinesque. 
“ (N'otorliynchiis Ayres.) 
..(Kafmesauc, Cavatteri di Alcui Nuovi Geueii, etc. 1810, 13: type cinere,. 
Gmeliu.) 
o Gill-openings sexen on each side. Three species known, (f vrd seven ; 
jSpir//", gills- The ehange of this name to “ neptanclms^’ is har y ju 
liable.) 
“42. IB. maciiJatils (Ayres) Girard. 
“Sandy gray, with some round black spots, larger than the pnpi , 
1 innod TTpnd rather depressed; the snout broad, 
rather sparsely placed. Head ratuei u«i , 
rounded ; the nostrils near its tip ; spiracles large, nearer the g P 
i„g than t he eye ; a long furrow at the angle of the mouth. No med ^ 
* Tlie necessities of nomcnclatnro often ns Eexanehm 
the typical genus of a family of some less n j- ' etc. It is probably un- 
fov Notidanus, Carchariasfov Odontasjns, asij i these changes. Among 
necessary to change well-lmown family ® ‘ tly names Odontaspididcc, NoUdnni- 
onr sharks it is perhaps better to ^^^ain the ohl fa n b ^’3 given in 
, dai, Cestraciontidw, instead of Carcliaru m, exmi ^ GalcorrMnidce, is in- 
the text The name Carclmriidct’, used hy various ^ nnnther family, 
euyblc, becansc the name CarcUaHas rightfully belongs to a genus of another family. 
