35G CONTKIBrTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
in'obably beloiij^ing to this species lately obtained at Charleston, S. C., 
by 3Ir. It. E. Eaiil. 
{Limamura’iui mclanoiis Kaiip, Aalc Ilamlmrg Mus. 27; Guiitlier, viii, 98.) 
art. PosttM'ior nostril witlioTit tube. (Gi/mnothorax* Blocli & Sclineider. ) 
579. II. iiior«l;ix Ayres. — Conytr EcL 
Dark brown, vaguely reticulated with narrow, ])aler markings and 
spots; a round dark blotch about gill -opening; lower side of head and 
throat with about 15 dark lengthwise streaks; belly with similar 
streaks running crosswi.se; a dark line on each side of base of anal, 
with short cross-branches. Snout short, narrow, and pointed. Occip- 
ital region becoming lleshy and much elevated with age. Tail form- 
ing about half the total length. Head 7 in length. Tube of anterior 
no.stril half as long as the eye; posterior nostril with a slight border. 
Eye above the middle of the gape, 2^ in snout, which is C.} in rest of 
head. Gill- 0 ])ening slightly larger than eye. Sides of upper jaw with 
two scries of teeth i)osteriorly, the outer series of small, close-set, re- 
curved, triangular teeth, which are immovable; inner teeth about 5, 
similar, but larger, de])ressible; a groove between the two series; in 
front of these, continuous with the outer series, are 3 fixed, knife- 
shaped teeth, then a movable tooth, then 3 fixed teeth; on the middle 
line of vomer 3 depressible fangs, the posterior the largest of the teeth ; 
in the lower jaw a single series, corresiionding to the outer series in 
the u])per jaw, .some of the front teeth enlarged and fixed. Iteaches a 
length of 5 feet. Point Concepcion to Cape San Lucas ; abundant 
about the islands, and remarkable for its ferocity. 
(Ayres, Proc. Cal. Acad. Nat. Sci. 1859, 30.) 
580. ITI. ©co3!Iala (Agassiz) Jenyns. 
Teeth uniserial, some of them slightly serrated. Mandible with 12-14 
teeth on each side, the two anterior being canines of moderate size; 
‘‘intermaxillary” teeth not much larger than “maxillary”; there are 
no teeth on the me.sial line between the “intermaxillary” teeth. The 
mouth can be shut comi)letely. Anterior nasal tubes short. Snout 
short, thick. Eye rather small. Cleft of the mouth of moderate width, 
extending beyond eye. Tail longer than the body. Head about half 
as long as trunk. Brownish, with numerous, small round white spots 
irregularly di.sposed, the largest about as large as the eye. Dorsal fin 
* Bloch it Schneider, Syst. Ichth. 525, 528; originallj' equivalent to Murcena. 
(yv/ivo?, naked; Oopa^, che.st; in allusion to the absence of pectorals.) 
