2210 Bulletin 4.7, United States National Museum. 



813. GOBIUS (Artedi) Linnseus. 

 (GOBIES.) 



Gobius, ABTEDI, Genera, 28, 1738 (Gobius ex nigricante varius, etc., = niger). 



Gobius, LINNAEUS, Syst. Nat., Ed. x, 262, 1758 (nigtr, etc.), and of authors generally. 



Gobionellus, GiBAED, Proc. Ac. Nat. Sci. Phila. 1858, 168 (hastatus = oceanicus). 



Ctenogobius, GILL, Fish. Trinidad, 374, 1858 (fasciatus). 



Euctenogobiu*, GILL, Annals Lye. Nat. Hist. New York 1859, 45 (badius). 



Smaragdus, POEY, Memorias, n, 279, 1861 (smaragdus). 



?Pomatoschistus, GILL, Proc. Ac. Nat. Sci. Phila. 1863, 263, footnote (minutus). 



Coryphopterus, GILL, Proc. Ac. Nat. Sci. Phila. 1863, 263 (glaucofrcenum) . 



? Deltentosteus, GILL, Proc. Ac. Nat. Sci. Phila. 1863, 263, footnote (quadrimaculatus). 



VGobiichthys, KLUNZINGER, Fisch. Rothen Meeres, 479, 1871 (petertii). 



?Mesogobius, BLEEKER, Esquisse d'un Syst. Nat. Gobioid., 317, 1874 (guavina). 



? Stenogobius, BLEEKER, I. c., 317 (gymnopomus). 



?Oligolepis, BLEEKER, I. c., 318 (melanostigma). 



?Gnatholepis, BLEEKER, I.e., 318 (anjerensis). 



?Callogobius, BLEEKER, 1. c., 318 (hasselti). 



?Hy.pogymnogobius, BLEEKER, 1. c., 318 (xanthozona). 



?Hemigobiux, BLEEKER, 1. c., 318 (melanurus). 



? Cephalogobius, BLEEKER, 1. c., 320 (tublitus). 



?Acentrogobius, BLEEKER, I. c., 321 (chlorostigma). 



?Porogobim, BLEEKER, 1. c., 321 (schlegeli). 



? Amblygobius, BLEEKER, I. c., 322 (sphinx). 



Zonogobius, BLEEKER, I. c., 323 (semifascialiu). 



? Odontogobius, BLEEKER, 1. c., 323 (bynoensis). 



?Siigmatogobius, BLEEKER, 1. c., 323 (pleurostigma). 



? Oxyurichthys, BLEEKER, 1. c., 324 (belosto). 



Lythrypnus, JORDAN & EVERMANN, Check-List Fishes, 458, 1896 (dallii). 



Body oblong or elongate, compressed behind. Head oblong, more or 

 less depressed. Eyes high, anterior, close together; opercles unarmed. 

 Mouth moderate. Teeth on jaws only, conical, in several series, those in 

 the outer row enlarged; no canines. Isthmus broad. Shoulder girdle 

 without fleshy flaps or papillaB. Skull depressed, abruptly widened 

 behind the eyes and without distinct median keel. Scales moderate, 

 ctenoid, permanently covering the body; cheeks usually naked; belly 

 generally scaly. Dorsal with 6 rather weak spines ; pectorals well devel- 

 oped, the upper rays sometimes very slender and silky; ventrals com- 

 pletely united, not adnate to the belly ; caudal fin usually obtuse. Species 

 very numerous. The genus GoUus, as here understood, comprises a very 

 large number of species more or less closely related to the European type 

 of the genus, Golius niger, and its American relative, Golius separator. An 

 examination of skulls or skeletons of numerous European and American 

 species shows a remarkable uniformity in most respects. The general 

 form and structure of the cranium is the same in all, the only differences 

 being very minor ones in the height of certain crests. GoUus oceanicus 

 seems the most aberrant, but seems to be inseparable geuerically on 

 account of intermediate forms. Probably several of the many genera 

 indicated by Bleeker will prove valid, but only a thorough study of skele- 

 tons can establish them. It is not unlikely that CtenogoUus, to which 

 group most of our species belong, may be separable from GoUut. (xoa/frd?; 

 Latin, Gobius or Gobio, a name applied to the gudgeon (Golio gobio) and 



