PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 43 



are recorded : one, tbe type of the original description, one foot long, 

 collected on the coast of Brazil by M. Gay, and probably now in the 

 Museum in Paris; a second in the British Museum, a stufled specimen, 

 purporting to have been collected iu the West Indies. Of Poey's C. 

 cyanops the Ji'ational Museum possesses a fine specimen (Cat. No. 4750), 

 15 inches long, collected and ])resented by Professor Poey. 



The Pensacola specimen, now under consideration, is two feet and 

 three inches long, weighing nine pounds and one-quarter. Its color has 

 i'aded, but a yellow blot(5li is still visible under the eye, similar to that 

 mentioned in C. ckrysops. A dark blotch is visible iu and above the 

 axilla of the pectoral. 



The following diagnosis is believed to characterizi; the iieculiarities 

 of the new Ibrm. It is accompanied by a table showing the detailed 

 measurements of C. cyanops and C. microps^ and another showing the 

 relations of C. chrtjsops as lar as they can be gleaned Irom the i)ublished 

 descriptions. 



Caulolatilus microps, sj). nov., Goode ami Beau. 



Diagnosis. — Height of body contained slightly more than three and 

 one-half times in its length, its width seven times, the species being 

 higher and more robust than C. chrysops and C. cyanops. Length of head 

 equal to height of body, being in same proportion to total length as in 

 C. cyanops (though less in proportion to height of body), and longer pro- 

 P'^rtionally than in C. chrysops. Width of interorbital area equal to 

 half the length of snout, instead of four-titths, as in C. cyanops. Length 

 of snout greater than tliat of maxillary. Uiaineter of eye contained six 

 times in length of head, instead of four times, as in C. chrysops, and three 

 and three-fourths times, as in C cyanops. Nostrils midway from eye to 

 snout, and separated by a distance (Mjual to diat;;eter of eye. Dentition 

 much as in C. cyanops. Fins all shorter than in C. cyanops, the anal 

 and soft dorsal two-thirds as high. Caudal fin slightly emarginate. 

 Pectoral not extending to first ray of anal, as in the other species, less 

 than one-fourth of total length. Scales iu lateral line 120, in transverse 

 line 48, being smaller and more numerous than in C. cyanops. 



Radial Formula.— \}. VII, 25 j A. I, 23 ; C. 17 ; P. 1, 16 ; Y. 1, 5, instead 

 of D. VII, 24 ; A. I, 22 ; C. 11) ; P. 1, 15 ; V. 1, 5, as in G. cyanops, or D. 

 VIII, 24 ; A. II, 22 ; C. 17 ; P. 17 ; V. I, 5, as in C. clirysops. 



