EIGENMANN: THE FRESHWATER FISHES OF BRITISH GUIANA 463 



Belonichthys Peters, Mossambique Flussfische, 1868, 109 (zambizensis) . 



Pipe-fishes with the pectoral fin well-developed, the broad pouch a deep 

 groove on the ventral surface between the lateral abdominal keels; ridges distinct; 

 caudal moderate. 



309. Doryrhamphus lineatus (Valenciennes). 



Doryichthys lineatus (ex Valenciennes, MS.) Kaup, Cat. Lophobranchiate Fish, 1856, 

 59 (Bahia; Mexico; Guadeloupe). — Poey, "Synopsis Piscium Cubensium," in 

 Repert. Fis.-Nat. Cuba, 1867, 180 (Cuba).— Gunther, Catalogue, VIII, 

 1870, 183 (Antilles; Caribbean Sea; Old Calabar; Gaboon). — Regan, Proc. 

 Zool. Soc. London, 1906, i, 391 (Trinidad). 



Doryrhamphus lineatus Jordan and Evermann, Bull. U. S. Nat. Mus. No. 47, 1896, 

 773. 



One specimen, 133 mm. Creek in Mora Passage. (C. M. Cat. No. 2426.) 

 A second specimen was taken by Dr. Ellis in the harbor at Georgetown. 

 Head 5+; plates 19 + 24; D. 42; dorsal over 3 + 5 rings; 76 postorbital part 



of the head 2.5 in the anteorbital. Vent equidistant from caudal and anterior 



third of opercle. 



Lateral line continuous with the ventral angle of the tail; opercle with a 



median longitudinal ridge and a few radiating ridges on the lower half. 



Lower surface of the snout with a pair of dark spots nearer to the snout than 



to the eye; a dark streak through the eye, becoming wider and diffuse on the sides; 



back and lower parts much lighter; tail dark chocolate; caudal black, the outer 



margin white. 



Order PERCESOCES. 



Family XX. MUGILID^. 



Mullets. 77 

 Oblong, scaled fishes with two widely separated dorsal fins, the first composed 

 of four spines, the second short; anal short, with two or three graduate spines. 



Mugil Linnaeus. 78 

 Mugil Linnaeus, Syst. Nat., ed. 10, 1758, 316. 

 Type, Mugil cephalus Linnaeus. 



76 In two specimens from Cuba 3 + 6 and 3 + 7. 



77 Mullets were abundant in the Georgetown market, but it being at the time foreign to plans in hand no 

 efforts were made to get a complete series. 



78 It is more than probable that some species of the genus Agonostomus Bennett will be found in Guiana. 

 Agonoslomus monticola is found on the Island of Trinidad. 



