1886.] PKOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 513 



We have had no opportunity to study this species, and have drawn 

 our knowledge of it chiefly from Steiudachner. The original type of 

 the species, belonging to a collection " given by Holland to France " prob 

 ably came from Surinam, and, therefore, probably belongs to this spe- 

 cies, rather than to G.peruanus. The Oobioides barreto is doubtless the 

 same, as Steiudachner has shown. The description of Ambly opus mex- 

 icanus we have not seen, and we take the reference to it from Steiu- 

 dachner. The type of Gobius brasiliensis Cuvier & Valenciennes 

 examined by Dr. Jordan in Paris, apparently belongs to Oobioides 

 broussonett. It is probable that the Gobius brasiliensis of Bloch & 

 Schneider is the same, although they give the fin rays of their specimen 

 as D. XVlII-21, A. 19. 



NOTES ON SKELETONS. 

 Lophogobius cyprinoides. 



Skull very broad and short; distance from posterior edge of orbit to 

 occiput If in its width; an angle formed at the occiput. A low me 

 dian crest, highest behind. Double crests of temporal region joining- 

 at the upper posterior angles of the eyes and forming a bridge over the 

 interorbital area. The crests end abruptly above the anterior part of 

 the orbit, forming a decided angle. The bridged interorbital leaves 

 a large foramen in front of this angle. A slight ridge along the middle 

 01 the interorbital. 

 Vertebrae, 11 + 15. 



Teeth in the upper jaw in a band, those of the outer series large, all 

 of the same size, the inner series minute; those of the lower iaw in a 

 b^nd, the outer series somewhat enlarged, the innermost teeth stronglv 

 recurved, remote, somewhat enlarged ; other teeth minute. 

 Gobius soporator. 



Skull posteriorly much as in L. cyprinoides, but the median crest re- 

 duced to a slight ridge. The lateral crests very high and closely ap- 

 proximated, rising obliquely outwards; the inner crests meet behind 

 the eye, the outer ones form a very high border about the orbit. Inter- 

 orbital very narrow and deep, with a median ridge 

 Vertebrae, 11 + 16. 



Teeth of the upper jaw in a broad band, those of the outer series 

 much en arged, the inner ones minute, brush-like. Teeth of the lower 

 jaw in a band, the inner and outer series equally enlarged, the median 

 ones minute. A few of the teeth of the inner series near the angle of 

 the mouth specially enlarged, those of the outer series in the same 

 region smaller or absent. 



Gobius boleosoma. 



Skull rounded behind, no ridges nor crests. The crests at the side 

 mmute. Interorbital verv narrow. 



Proc. K M. 86—33 ]¥oveinber 26, 1 886. 



