1886.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 481 



orbits ; anterior portion of skull unu- 

 sually long; no flaps on shoulder- 

 girdle; skull highest at nape, de- 

 pressed above the eyes 



Typhlogobius, 18. 

 ii. Dorsal fin continuous, the second and the aual joined to base 



of caudal ; eyes minute ; body elon- 

 gate; scales minute or wanting; 

 mouth very oblique, the loner jaw 

 projecting; gill openings moderate. 

 {Gobioidince) . 

 u. Dorsal rays vi-16 to 23 ; anal rays 17 

 to 23. 

 f. Teeth, small in a single series : scales 



present Tyntlastes, 19. 



vv. Teeth in a band, those of the outer se- 

 ries being very stong ; scales present. 



GOBIOIDES, 20. 



1. lOGLOSSUS. 



lOGLOSSUS (Bean MSS), Jordan and Gilbert, Proc. U. S. Nat. Mus., 1882, 297, (calli- 

 uru8.) 



Type loglossus calliurus Beau. 



This singular form is quite unlike all the other American gobies, 

 although apparently closely related to the Orthostomus of Kner. But 

 one species is known. 



ANALYSIS OF THE SPECIES OK lOGLOSSUS. 



a. Body elongate, conapressed; its depth 7 in length, its width 2J- in head, which is 5 

 in length. Head compressed, higher than wide, rounded above. Eye large, 

 3f in head, longer than snout, equal to the interorbital area which is broad 

 and rounded. Mouth small, very oblique, almost vertical ; maxillary extend- 

 ing to below anterior edge of pupil, 2^ in head. Teeth in the lower jaw une- 

 qual, irregularly placed, in a very narrow band, some of them cauine-like ; 

 those of the upper jaw in two series ; the outer series long and stout, the inner 

 minute ; behind these in front are two fang-like canines. AH the teeth fixed. 

 Tongue very narrow, lying in a groove in bottom of the mouth. Scales all 

 small, the anterior ones imbedded and cycloid, those of the caudal peduncle 

 imbricated, ctenoid; head and nape naked. Dorsal spines weak, graduated 

 from the first to the fifth which is highest, IJ in head. Dorsal rays high, 

 the last extending past base of caudal. Caudal long, pointed. If in body. 

 Pectorals very short, the longest ray f of head; ventrals contiguous, very nar- 

 row and long, 4^ in length. Light olive, everywhere densely punctate with mi- 

 croscopic points. Dorsals edged with black ; caudal with a median reddish 

 stripe and two bluish bands. Dorsal VI-23; anal 22, ventrall, 4. 



Calliurus, 1. 

 1. loglossus calliurus. 



loglossus calliurus (Bean, MSS.), Jordan «fe Gilbert Proc. U. S. Nat. Mus., 

 1882, 297 (Pensacola, Fla.); Bean, Proc. U. S. Nat. Mus., 1882, 419 (Pen- 

 sacola, Fla.); Jordan & Gilbert, Syn. Fish., North America, 949,1883 

 (Pensacola); Jordan, Proc. U. S. Nat. Mus., 1684, 437 (Pensacola); Jor- 

 dan, Catalogue Fish., North America, 106, 1885 (name only). 



Habitat. — West Indian fauna ; Pensacola. 



Proc. K M. 86 31 JVovember S6, 1 8 86. 



