404 Bulletin 47, Utiiied States National Museum. 



Subgenus SCUTICA, Jordan & Evermann. 

 666. TJROPTERYGIUS NECTURUS (Jordan & Gilbert). 



Teeth in jaws biserial, outer teeth small, close together; inner row 

 composed of long depressible canines, not close-set, vomerine teeth uni- 

 serial; a pore situated just above the posterior nostril ; tail rather acute 

 with a very slight dorsal fold, more conspicuous in old specimens, its tip 

 in young specimens white; caudal fin obsolete; eye 2 to 2 in snout; 

 cleft of mouth 2 to 2 in head ; head 3i in trunk ; tail i longer than 

 rest of body. Anterior nostril with a short tube; posterior without 

 tube, situated directly over the eye. Body dark brown above; below 

 paler, with small, dark freckles and pale spots ; under side of lower jaw 

 light colored with brown and whitish blotches. Length 12 inches. Gulf 

 of California; not rare. (vynTrie, swimmer; oi>pd, tail.) 

 Gymnomursena nectura, JORDAN & GILBERT, Proc. U. S. Nat. Mus., 1882, 356, Cape San Lucas. 



(Type, No. 15442. Coll. Xantus.) 



Munmoblenna nectura, JORDAN, Cat. Fish. N. A., 51, 1885. 

 Uropterygius neciurus, JORDAN & DAVIS, I. c., 586. 



194. CHANNOMUR^ENA, Richardson. 



Channo-Mursena, KICHARDSON, Voyage Erebus and Terror, 96, 1844, (vitlata). 



This genus is near Uropterygius, differing chiefly in the size of the gape, 

 the cleft of the mouth being nearly half the length of the head ; the 

 snout is very short, the tail also abbreviated, and there are no evident 

 fins. Species few, gaily colored. (XUVVTJ, from%aivcj, to yawn; Murcena.) 



667. CHANNOMURJENA YITTATA (Richardson). 



Fins wanting. Lower jaw projecting ; teeth slender, subequal, directed 

 backward ; teeth in lower jaw in two series, pointed backwards, the inner 

 teeth the largest, and movable ; teeth in upper jaw in three series, tne 

 two inner series larger and more or less movable ; vomerine teeth in a 

 band, thick-set anteriorly, posteriorly biserial. Eye H in snout, situ- 

 ated in the anterior third of gape ; snout 4i in gape ; gape 2 in head ; 

 head about 4 in trunk, 2f in tail. Color pale yellowish brown, with 

 about 15 irregular broad chocolate-colored cross bands varying in width, 

 sometimes interrupted, sometimes bifurcated, some 'of them forming 

 complete rings, the pale interspaces usually edged with ligruer yellow- 

 ish. Coast of Cuba ; rare. (viUatus, striped.) 



Raro, PARRA, Dif. Piezas, Hist. Nat., 66, pi. 30, fig. 3, 1780, Havana. 



Ichthyophis vittatus, RICHARDSON, Voy. Sulph., Fish., 114, pi. 53, figs. 7-9, 1844, locality 



uncertain ; RICHARDSON, Voyage Erebus and Terror, Fishes, 96, 1844. 

 Channomurtena cubensis, POEY, Repertorio, n, 266, pi. 3, fig. 6, 1867, Cuba. 

 Gymnomursena vittata, GUNTHER, Cat., vm, 134, 1870. 



Order R. LYOMERI. 



(THE GULPERS.) 



Fishes with 5 01 6 branchial arches, far behind the skull and none modi- 

 fied as branchiostegal or pharyngeal ; an imperfectly ossified cranium 

 articulating with the first vertebra by a basi-occipital condyle alone ; only 

 2 cephalic arches, both freely movable, (1) an anterior dentigerous one 

 the maxillary, and (2) the suspensorial, consisting of the hyomandibular 



