160 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



BESCRIPTJOIV OF A IVETT SPECffES OF FISn, APOGOIV PANDIOIVIS, 

 FROM TSBE DEEP U^ATEU OFF TSaE MOUTH OF €HE8AFEAli.E 

 BAIT. 



BY G. B]S«>\^^IV 0®0»E AMI> TAKLETOIV II. BEAN. 



Among the lisbes collected in October, 1880, by Capt. Z. L. Tanner, 

 on the Fish Commission steamer Fish Hawk, off the entrance to Chesa- 

 peake Bay, is a single specimen of a species of Apogon^ apparently new 

 to science. The specimen being somewhat mutilated, this description 

 is necessarily incomplete. 



Apogon pandionis, new species. Goode and Beau. 



Body oblong, rather robust, its greatest width (behind the gills) being 

 equal to half the length of the head, and contained six times in the 

 length of body without caudal ; its greatest height contained about 

 thrice and two-thirds in the body length. Least height of tail almost 

 equal to half the greatest height of the body. Scales, small cycloid, 

 forty-five in the lateral line ; three longitudinal rows above and nine 

 below the lateral line ; lateral line complete. 



Length of head one-third of standard length of body, its greatest 

 width equal to greatest width of body. Length of snout four and one- 

 half times in length of head. Maxilla extends to a point a very little 

 behind the anterior margin of the pupil, the mandible to the vertical 

 from the middle of the eye. Length of maxilla equal to long diameter 

 of the eye. Preoperculum apparently unarmed. Operculum with two 

 flexible points near its upper posterior angle. Gill-rakers very long 

 and slender. 



Eye nearly circular, its longest diameter nearly equals half the length 

 of the head and is contained seven times in the standard body length 

 nearly horizontal. Width of interorbital space equals two-thirds the 

 diameter of the eye. Mouth oblique, the lower jaw projecting. Denti- 

 tion in jaws hardly perceptible. Feeble teeth on the head of the vomer 

 and on the palatine bones. 



Distance of dorsal from snout equal to twice the greatest width of the 

 body; its longest spine (fourth) equal in length to three-fourths the diam- 

 eter of the eye. Distance from origin of first dorsal to origin of second 

 dorsal equal to twice the length of the base of the latter 



Distance of anal from snout equal to twice the length of the head ; 

 the length of its base is equal to two-thirds the length of the eye ; of its 

 longest ray to the length of the maxilla. First anal spine minute, its 

 length equal to one-fourth of the least height of the tail; the second 

 anal spine at least twice as long as the first. Caudal deeply furcate, 

 scaled upon the lower portions ot the lobes. 



Distance of pectoral from snout equal to length of head ; its length 

 equal to that of the maxilla. 



Distance of ventral from snout slightly greater than one-thu'd of the 

 standard body length. 



