CATALOGUE OF VERTEBRATES. 719 



forming a keel on tail ; scales on sides of head ; first dorsal with 

 seven low, connected spines; much like Naucrates; bluish 

 above; a greenish-yellow band along side; white below; fins 

 greenish; body spindle shaped; one median and two lateral 

 series of teeth on tongue ; head naked ; cheeks with small scales ; 

 soft rays of dorsal, 36 ; of anal, 19 ; no sharp keel at occiput. 

 Gulf of Mexico. Rare northward. The following note prob- 

 ably refers to aged specimens of following species, or possibly to 

 S. fasciata : 



"Halatraotus carolinensis. 



" Specimens of this species are occasionally met with associated 

 with the following." 



S. zonata, Mitch. (Zoniohthys, carolinensis, without vertical bands, due, 

 perhaps, to increased age.) Banded Leriole. Rudder-fish. 



Differs from preceding in having six broad, black bars (darker 

 in young than in previous cases) ; body deeper, with occipital 

 keel ; spinous dorsal and ventrals black. Rays, dorsal, 38 ; 

 anal, 21 ; length, 30 inches. 



" This species is quite abundant along our coast. Specimens 

 have been met with by the author at each of the principal points 

 along our coast." — [C. C. A.] 



S. fasciata, Bloch. {Zoniohthys.) Amber-fish. 



Greenish above, with sixteen brown, narrow cross bands, 

 arranged in pairs, and running into the dorsal and anal ; head 

 deeper than long. Dorsal rays, 30 ; anal rays, 20. Coast of 

 South Carolina. Extra- limital to New Jersey. 



OLiaOPLlTBS, Gill. 

 (Scombroidea, Lac.) _ 



O. saurus, Bl. & Schn. [Scomber, occiderUalis.) Leather-jacket. 



Body compressed, nearly lanceolate ; tail slender, not keeled ; 

 head short, acute ; occipital keel sharp ; mouth with ^gharp teeth 

 onjaws, tongue, &c.; upperjaw not protractile; maxillary narrow, 

 without a distinct supplementary bone ; scalf s small and very 

 narrow ; dorsal spines 5 + 1, strong ; second dorsal mostly 

 broken up into finlets ; anal longer, also with finlets posteriorly ; 

 pterygoids toothless; bluish above, bright silvery below; fins 

 yellow ; caudal deeply forked ; twenty soft rays in dorsal and 

 anal. Tropics to New York. Not rare southward. 



