606 BULLETIN OF THK UNITED STATES I-TSH COMMISSION. 



Length to base of eainlal li'S nun. Of thiH IniL'tli tlic head forms 2'2 hundredths; diameter of orbit 

 4; bony interorbital width 4; lenirtli of snout 0; mouth mrasured froui tip of snout to eml of maxil- 

 lary, IS; length of barbel 30: greatest depth of body 15; least depth of camlal pednnele ti; distance 

 from tip of snout to base of dorsal 52; length of dorsal base \?,; distance l.ietween dorsals 16; from front 

 of adipose dorsal to liase of middle caudal rays 21; distance from tip of snout to base of ventrals 48; 

 length of anal base 15; distance between the lower adipose fin and the anal 7.5; length of ventrals 21 ; 

 length of i>ectoi-als IS; height of dorsal 1!J. D. 12, the first ray very short, the last split to the base; A. 

 19; P. 6; V. 7. 



Interorbital widtli ei|ualiiig diameter of orbit, rather strongly grooved, and bounded on eai-li side 

 by 2 sharp) ridges, whicli are closely apposed over the middle of the orbit and diverge forward and 

 backward from tins point; a minute bluntish ])rotul)eranoe at the ui>per ]iosterior margin of the orbit, 

 and behind this a third ridge, outside the 2 whii-h liound the intiTorbital area; mandible massive, 

 slightly protruding bieyond premaxillaries; teeth notably smaller than those tigured liy Liitken (Spolia 

 Atlantica, Si'0|ielini, pi. S, fig. 7) from Klunzinger's type of J. iiKrrtmxii. Near ti]) of mandible a very 

 long slender canine, double on one side in the type, single on the other; nearer the aymiibysis a second 

 pair, no longer than the shortest teeth on sides of mandible; teeth on one side of the mandible snb- 

 eipial and arranged regularly in pairs, one ]iair near the outer margin of the jaw alternating with 

 another nearer its imier margin; jiosteriorly wdiere overlapped by the maxillary, a few small teeth 

 onlv, in line with those of iimerrow; arrangement less regular on the other sideof the mandible, some 

 of the teeth apparently fallen; two |iairs of canines in front of premaxillaries, the iinicr pair not half 

 the length of the outer; sides of ])reinaxillaries with a few small canines like those in the mandible, 

 apparently also arranged typically in pairs, though this is less evident; most of the canines slenderly 

 arrow-shaped atti]i; maxillary forming a trifle less than half margin of upper jaw and ending posteriorly 

 in a short spine; it bears a single row of 15 to 20 very slender, close-set teeth, directed obliquely down- 

 ward and backward; a single mimite t(.>oth on each side of the head of the vomer, a series of similar 

 teeth on [lalatines; no teeth on tongue; gill-rakers represented by sluu't spinous teeth arranged in |>airs, 

 of wdiich 12 are present on the horizontal lindj of the outer arch; liarbel long(M' than heail, with a dilated 

 tip, reaching al)ont to middle of iiectorals. 



Dorsal more anteriorly inserted than \]\ A. mm-liiixii, its insertion midway between nostril and 

 base of caudal, slightly behind insertion of ventrals; ventrals midway between end of maxillarj' and 

 front of anal; when declined, the ventrals reach slightly beyond pre-anal adipose tin; front of a<lipose 

 dorsal over fom'th or fifth anal ray, thus far in advance of middle of tin; jiectorals extending over two- 

 thirds their distance from ventrals. 



In color this species agrees with .1. iiKirlrnsii, being grayish silvery on sides of head anil body, 

 brownish blai'k above, black on under piarts; lins translucent, unmarked. 



The photoijhores show a similar arrangement: Operculars 2. Branchiostegals IS, one for each 

 ray. .Tugulars S, along the sides of the isthmus. Thoracics 22, 4 of these in advance of axils of 

 pectorals. The jugulars and thoracics form continuous series, the 2 parallel anteriorly, strontrly 

 diverging posteriorly to reach the bases of the ventrals. Ventrals 22, the anterior 2 pairs in advance of 

 the ventrals, between the diverging en<ls of the thoracic series. -■Vnals 2-f-8, a wider interspace 

 between the second and third; the last 2 are smaller than the others and diverge uinvard in a curved 

 line. Caudals 4. The snbocnlar photophore is shorter and rounder than in Liitken's figure, and is 

 farther hack, none of it inider the pupil; its posterior end is much nearer the eye than the maxillary. 

 The entire body is covered with niinnte ]>ores, which appear black on the silvery portions, light on 

 the blackish areas, and are arranged in more or less regular cross series. 



A single cotyjie was obtained at station :10IS, off the south coast of Oahn, de|>lh 257-204 fatlionis. 



Family .ST()MIII).€. 



Ijeptostomias, new gemis. 



Body extremely elongate, but little comjiressed, without scales; mouth very wide; anterior teeth 

 slender, fang-like, unequal, i)rojccting outside jaws in closed mouth; a pair of slender teeth on vomer, 

 a similar tooth on eai'h palatine and a jiair on tongue; branch lost egal rays 17; no pseuil(>branchia»; eye 

 very small; pectoral without detached ray; ventials inferior, far behind middle of length; dorsal and 



