322 [April, 



Scales on the base of caudal rays. Dorsal groove extending from middle of 

 spinous portion of dorsal fin to last third of soft portion. Sheath formed by two 

 rows of scales anteriorly, and one only posteriorly. 



Syn. Phanerodon, Grd. Proc. Acad. Nat. Sc. Philad. vii. 1854, 153. 



8. Phanerodon furcatus, Grd. General form elongated, iather tapering pos- 

 teriorly, and very much compressed. Cleft of mouth not extending to the ante- 

 rior rim of ihe orbit. Eyes large and circular. Branchiostegals five in number. 

 Caudal slender and deeply forked. About sixty-three scales in lateral line. Yel- 

 lowish brown above ; lighter on the sides ; whitish under the throat. Fins yel- 

 lowish. Margin of dorsal and caudal greyish. A diffused marginal spot upon 

 the anterior poriion of anal. 



Syn. Phanerodon forcatug, Grd. Proc. Acad. Nat. Sc. Philad. vii. 1824. 153. 

 Locality. Bay of San Francisco, Cal. Collection of Lieut. Trowbridge, U. S. A. 



Genus ABEONA, Girard. 

 Head of medium size ; mouth very small ; jaws equal. Lips rather thin ; lower 

 one attached by a frenum to the symphysis of the jaw. Intermaxillaries pro- 

 tractile. Teeth stoutish, conical, disposed upon one single row on both jaws. 

 Branchiostegals five in number. Spinous portion of dorsal fin higher than the 

 soft ; line of separation between both of these slightly depressed. Articulated 

 rays of anal all divided ; spiny rays three in number, well developed ; base of 

 that fin rather short. Scales of moderate size. Lateral line concurrent with 

 the dorsal outline. No scales upon the fins. Dorsal groove extending nearly to 

 the whole base of the fin. Sheath formed by two rows of scales. 



9. Abeona trowbridgii, Grd. General form subelliptical. Head subconical ; 

 snout abbreviated ; mouth small ; posterior extremity of maxillary not reaching 

 the vertical of anterior rim of orbit. Eyes large and circular. Branchiostegals 

 five in number. Forty-one scales in lateral line. Olive or reddish brown above ; 

 silvery on the sides and abdomen. Flanks blotched. Fins yellowish, except 

 anal, which is purplish, with its anterior portion spotted. 



Syn. Holconotus trowbridgii, Grd. Proc. Acad. Nat. Sc. Philad. vii. 1854, 152. 

 Locality. Not precisely known ; San Francisco, Monterey, or San Diego, Cal. 



Genus HOLCONOTUS, Agass. 



Head well developed. Mouth small ; jaws equal ; lower one projecting slightly 

 when mouth opens. Lips thin ; lower one free all around. Intermaxillaries 

 protractile to a considerable extent. Teeth small, slender, subconical, slightly 

 curved, disposed upon a double row on the upper jaw and one only on the lower. 

 Spinous portion of dorsal fin higher than the soft. Anterior articulated rays of 

 anal mostly all divided, and preceded by three spines shorter than the other 

 rays. Scales rather large. Lateral line concurrent with the dorsal outline. No 

 scales on the fins. Dorsal groove extending froua opposite middle of spinous 

 portion of dorsal fin to beyond the middle of soft poriion of same fin. Sheath 

 formed of but one apparent row of scales, tapering posteriorly. 



Syn. Holconotus, Agass. Atner. Journ. of Sc. Second series, xvii. 1854, 367. 



10. Holconotus rhodoterus, Agass. General form elongated, neither ellip- 

 tical nor fusiform. Frontal region subconcave. Head subconical ; mouth small; 

 posterior extremity of maxillary not quite reaching the vertical of anterior rim 

 of orbit. Eyes rather large and circular. Branchiostegals five in number. About 

 forty-four scales in lateral line. Bluish grey or olive above, silvery or yellow 

 upon the sides, with rose-colored spots disposed in longitudinal series. 



Syn. Holconotus rhodoterus, Agass. Amer. Journ. of Sc. Second series, xvii. 

 1854, 3G8. Grd. Proc. Acad. Nat."Sc. Philad. vii. 1854, 141 and 152. 



Localities. From California to Oregon. Collections of Lieut. R. S. William- 

 son, Lieut. \Y. P. Trowbridge and Gov. I. I. Stevens. 



Genus ENNICHTHYS, Girard. 

 Head of medium size. Mouth large and oblique ; lower jaw projecting beyond 



