Jordan and Evermann. — Fishes of North America. 2193 



very wide, the membranes narrowly joined to isthmus on median line. No 

 lateral line. Branchiostegals 5. Dorsals separate, the first of 6 very 

 slender, flexible spines ; the second elongate, similar to the anal ; caudal 

 long and pointed, free from dorsal and anal; ventrals close together, 

 separate, each of 1 spine and 4 rays, their insertion below or behind pec- 

 torals; anal papilla present. A remarkable type, belonging to the Oxijmc- 

 toponUna', differing widely from our other Gobioid fishes. Gulf of Mexico, 

 in rather deep water, (ibs, arrow; yXS}66a, tongue.) 



2,515. lOGLOSSUS CALLIURUS, Be!m. 



Head 5 ; depth 7 to 7^. D. VI-22 to 24 ; A. I, 21 to 23. Body very elon- 

 gate, slender, much compressed, of equal depth throughout; head com- 

 pressed, without osseous crest; mouth very oblique, the lower jaw 

 strongly projecting; premaxillaries in fi-ont on the level with pupil; 

 maxillary extending to opposite front of pupil, its length 2f in head; 

 uj)per jaw with a narrow band of about 2 series of conical cardiform 

 teeth, those of the outer row much larger than the others, behind these 

 2 small conical curved canines; lower jaw with a single row of smaller 

 teeth, behind which are about 4 short canines directed somewhat back- 

 ward ; the posterior pair strongly curved ; no teeth on vomer or palatines. 

 Tongue narrow, pointed. Eye large, nearly twice length of snout, 3^ 

 in head, its diameter considerably more than depth of cheek, about ^ 

 more than interorbital width; opercles unarmed. Pseudobranchiaj pres- 

 ent. Gill openings wide, extending forward below, the membranes 

 attached mesially to the very narrow isthmus, across Avhich they do not 

 form a fold. Gill rakers long and slender. Dorsal fins separated by a 

 short interval, the first of very slender somewhat filamentous spines, the 

 longest about as long as head ; second dorsal little more than ^ as high 

 as first, apparently nearly uniform, separated from the caudal by an 

 interval nearly i length of head; caudal lanceolate, its middle rays 

 filamentous, about i the length of rest of body; anal rather high, 

 similar to soft dorsal; ventrals I, 4, inserted very slightly in advance of 

 base of pectorals, the 2 fins very close together, but apparently quite sepa- 

 rate and without basal fold of skin, the fin little longer than head, the 

 inner rays filamentous; pectoral with broad base, about 1^ in head. 

 Anal papilla very short, midway between tip of snout and base of caudal. 

 Body with very small, nonimbricate, embedded scales, these a little larger 

 and imbricate on the tail; cheeks with embedded cycloid scales; scales 

 very weakly ctenoid, most of them appearing cycloid; no lateral line. 

 Color light olive, everywhere densely punctate ; dorsals edged with black ; 

 middle of caudal reddish, with paler bluish edgings. Length 4i^ inches. 

 Here described from specimens from ofl:' Pensacola. Gulf of Mexico ; known 

 only from the Snapper Banks off" Pensacola, in rather deep water. {uaXXo'^, 

 beauty; ovpd, tail.) 



loglossus calUurus (Bean MS.), in Jordan & Gu^bert, Proc. U. S. N.at. Mus. 1882, 297, Pen- 

 sacola, Florida; Bean, Proc. F. S. Nat. Mus. 1882, 419: Jordan & Gilbert, Synopsis, 

 949, 1883; Jordan, Proc. U. S. Nat. Mus. 1884,437; Jordan & Eigenjiann, Proc. U. S. 

 Nat. Mus. 1886, 481. 



