2264 Bulletin 4.7, United States National Museum. 



which are elongate oval in form. Violet bars extending downward and 

 forward on the upper part of body ; sometimes a violet spot with a lighter 

 or darker dot at end of the bars; head marbled or spotted with dark 

 violet or brown. (Steindachner.) Length 20 inches or more. West 

 Indies to Brazil ; common southward, ascending rivers ; once taken near 

 New Orleans (Bean & Bean). (Named for Dr. Augustin Broussonnet, 

 professor in the University of Montpelier. ) 



Gobioides broussonnetii, LACEPEDE, Hist. Nat. Poiss., n, 580, 1798, probably from Surinam, 



"given by Holland to France." 

 Amblyopus brasiliensis, BLOCH & SCHNEIDER, Syst. Ichth., 69, 1801, Brazil; on drawing 



made by Prince Maurice ; CUVIER & VALENCIENNES, Hist. Nat. Poiss., xn, 121, 1837. 

 Gobious oblongus, BLOCK & SCHNEIDER, Syst. Ichth., 548, 1801; based on LACEPEDE. 

 Gobioideg barreto, POEY, Memorias, n, 282, 1861, Cuba ; POEY, Synopsis, 394, 1868 ; POEY, 



Enumeratio, 125, 1876. 

 Amblyopus mexicanus, O'SHAUGHNESSY, Ann. Mag. Nat. Hist., series iv, vol. xv, 1875, 147, 



Mexico.* 

 Gobioides broussoneti, JORDAN & EIGENMANN, I.e., 5] 2; BEAN & BEAN, t Proc. U. S. Nat- 



Mus. 1895, 631. 



2600. GOBIOIDES PERUANUS (Steindachner). 



Head 5; depth 11. D. VII, 17; A. I, 16. Eye scarcely visible, much 

 smaller than in G* broussoneti ; scales very minute; snout 2| in post- 

 orbital part of head; interorbital 5 in head; lower jaw slightly project- 

 ing; maxillary 2f in head; a series of large slender teeth in each jaw, 

 behind which, in each jaw, is a narrow band of fine teeth; caudal 4 in 



* The followingis Mr. O'Shaughnessy's deocription of Amblyopus mexicanus: D. VII, 

 15; A. I, 15. Depth 13 in total length. Body covered all over with scale-shaped 

 crypts. Head naked. Dorsal height of body. Eye small, but distinct. Snout obtuse; 

 lower jaw extending a little beyond upper. Teeth small, close set, the outer series much 

 smaller and more closely set than in G. broussonnetii. Dorsal and anal connected with the 

 caudal. Upper parts dark brown, with a series of white spots along the whole length 

 of the side; lower parts of sides and belly white. One specimen in the British Museum, 

 from Mexico, purchased. Length 20 inches. (O'Shaughnessy.) 



This seems to clifter from G. broussonnetii in color only. 



t The following description is given by Bean & Bean of Gobioides 'broussonnetii (Lac6pede) : 

 Head 7 ; depth 14. D. VI, 17 ; A. 1, 16. The greatest depth of the head equals the length of 

 the upper jaw, or about \ the length of head without snout. The body is compressed. Its 

 greatest thickness is contained If times in its greatest depth. The teeth are in narrow 

 bands in each j aw, some of those in the outer row enlarged, canine-like, and curved inward. 

 All of the teeth aremore or less curved inward and depressible. The vomer and palate are 

 toothless. The mouth is oblique, the lower jawprojectingslightly beyondthe upper. The 

 maxilla extends well behind the eye, its length is slightly more than \ that of head without 

 thesnout. Itis not much expanded posteriorly. Eyes very small, their diameter equaling 

 \ length of snout, about equal to width of interorbital space. The snout scarcely 

 equals more than \ of the head's length. Gill openings wide, the membranes wholly 

 joined to the isthmus. Branchiostegals much curved, 4 in number. The dorsal begins 

 at a distance from the nape equal to the postorbital part of the head, the origin being 

 about over the end of the extended pectoral. The ventral reaches farther back than the 

 pectoral, and is longer than that fin, its length equaling postorbital part of head. The 

 distance of the vent from the tip of the snout equals somewhat more than 3 times the 

 length of the head; it is under the interspace between the last spine and first ray of 

 the dorsal, with a small genital papilla behind it. The caudal is very long and tapering, 

 If times as long as the head. The dorsal spines are long and slender, the fifth nearly as 

 long as the postorbital part of the head. The second dorsal ray is slightly longer. The 

 anal rays are about as long as those of the dorsal. The scales are thin, not imbricated, 

 except on the posterior part of the head, where they are long and elliptical in shape. 

 The head and breast are naked. The colors have faded out in alcohol; the ground color 

 appears to have been light brown, with darker blotches on the median line of the body 

 under the spinous portion of the dorsal and the anterior part of the soft dorsal. (Bean 

 & Bean.) Here described from a specimen obtained in the Gulf of Mexico by Mr. Bobert 

 S. Day, of New Orleans, Louisiana, and is No. 38220, U. S, Nat. Mus. 



