ICHTHYOLOGY OF THE LESSER ANTILLES. 



481 



Mugilidm. 

 MUGIL BEASILIEHSIS, Agassiz Spix. Pise, Brazil, p. 234, fide Giinthcr Catal. III., 481. 

 St. Croix, Capt. Davidson ; New Providence, Dr. H. 0. Wood. 



SYNENTOGNATni. 



Seornbreeoeidce. 



ExoCOETTJS affinis,* Giinthcr Catalogue British Mus., VL, 288. 



St. Martins, Dr. H. E. van Rijgcrsma. 



Cyi-siluuus hillianus, Gosse. Nat. Soj., Jamaica, p. 11 ; Poey, Memorias, Cuha, II., 301 ; Giinthcr Catal. 

 B. M., VI., 284. 



St. Martins, Dr. II. E. vau Kijgcrsma. 



IIemtiuiamimius UMFASCIATUS, Ranzani, IT. riehardi, Cuv. Val. XIX., 20. llemirhamplim unifasciatus, Giinther 

 Catalogue VI., 2G2. 



St. Martins, Dr. vanltijgcrsma. Saml. Powell obtained a specimen of this fish at Newport, R. I. I cannot find 

 that it has been previously recorded from the coasts of the United States. 



Hemikhamfhus pleii, Cuv. Val. XIX., 21. 



St. Kitts, B. II. Lightfoot ; St. Croix, Capt. Davidson, Dr. Griffith. 



Bici.onk DIPLOTAENIA, Cope sp. nov. 



Anterior dorsal and anal radii elongate, median and posterior dorsal radii equal. Caudal peduncle very much 

 depressed, wider than deep, but without any keel or trace of one. No teeth on the palate. 



Jaws equal, not mentioning the elongate mandibular dermal process. Length of head 2.0G times in length to 

 base of inferior caudal border. Diameter of orbit just equal to interorbital width, and 2.5 times into postorbital 

 space. Pectoral fin equal same space. Top of cranium nearly smooth, groove interorbital only, shallow, with 

 median ridge. Maxillary bone concealed by preorbital, except an anterior terminal lobe. Form of body oylindric. 

 Fin radii D. 10 ; A. 17 ; dorsal commencing above fourth anal ray. Caudal fin moderately emarginate. Total length 

 0m.35. From end muzzle to rictus oris Om.002 ; to opercular border Om.101 ; ventral fin Om.170 ; anal Om.22 ; lower 

 basis caudal Om.375. Twenty-throe rows of scales between dorsal and anal fins. 



Color in spirits ; above brownish (probably green in life), below silver white, a blue band extends from the oper- 

 cular angle to near the origin of the caudal fin. This ison the median, part of its length black edged below, and then 

 yellow margined throughout its entire length below the black, and for a width equal to itself, i. o. 1.5 rows of scales. 



St. Martins, Dr. R. E. van Rijgersma. 



This species is one of the most elegant of the genus, and differs from the others already known from West Indian 

 seas. Neither the works of Poey, Valenciennes, nor Giinther contain the present one. Its maxillary bone, concealed 

 for most of its length, and emarginate caudal fin separates it from the species allied to B. Iruncata. In B. galeatus 

 C. V the head is much shorter, entering the length 3.5 times. 

 Belone macuiata, Poey Memorias, Cuba, II., 290. 



St. Kitts, B. II. Lightfoot. 



BELOKH OABIBBAEA, Lesuour Journ. Ac. N. Sci., II., 127, C. V., 430 ; Giinther, VL, 241. 



Loc ? 



*jBxocoetus soylla, Cope sp. nov. 



Ventral Ins extending nearlyto end of anal; pectorals extending to a little beyond the same point, uniformly colored. Orbit not 

 quite equal to muzzle, 8.6 Uincs in length of head, and .00 times in the flat interorbital space. Teeth very minute. Scales; 1. 1. 59, eight. 

 rows from it to dorsal tin, and 27 scales in front of latter. Fin rays D. XI j A. 11. Head one-fifth of total length (with caudal). Origin of 

 ventral half way between margin of operculum and inferior basis of lower oaudal lobe origins of dorsal and anal opposite. Color yel- 

 lowish silvery: fins white, except part of edge of pectoral, which is dusky. 



Total length 0m.255i to tipper base of pectoral Oin.05; to basis ventral Om.117; to basis anal Omits. Depth of body Om-034, in fronto 

 ventrals. From the Coast of the Gulf of Mexico, said to be near Tobasoo, Mexico. Discovered by Dr. Bcrendt. 



Near the IS. californi.ats of Cooper. 



AMEIU. I'llILOSO. SOC— VOL. XIV 121 



