362 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



L^^MONEMA, Gunther, 

 Lamionenia, GCntiikr, Cat. Fish. Brit. Mus., iv, 1862, 356. 



IJody of luotlerate length, covered with small scales. Fin.s naked. A separate caudal ; 

 2 dorsal fins and 1 anal, the anterior dorsal composed of 5 rays; veutrals reduced to a 

 single loui;- ray, bifid at its end. Bands of villiform teeth in the jaws; a small group of 

 vomerine teeth; none on the palatine bones. Chin with a barbel. Brauchiostegals 7. 

 {Oiinther.) 



L^MONEMA YAREELLII, (Lowe), Gunther. 



Phyds TarrcUii, Lowe, Syn. Fish. Mad. (Trans. Zool. Soc, ll, 190); Fishes of Madeira, 43, pi. vil. 

 Lwmonema TarreUii, (iuNTUEH, Cat. Fish. Brit. Mus., IV, 356 (with a fiill description). 



A Lcvmoncma with slender body, and with the anterior rays of the first dorsal pro- 

 longed as long as the head. Veutrals prolonged, but not reaching to origin of anal. Anal 

 emarginate, angular behind. Scales sinall, about 110 in the lateral line and 8 series above it. 



Eadial formnla, D. 5, 59-GO; A. 59-60. 



Color, reddish-gray. Vertical fins black with white blotches. 



This form is know^n only fi'om Madeira, where it lives at great de]iths far from the shore, 

 and is exceedingly rare, 



L.a:MONEMA ROBUSTUM, GliNTnEit. 



Lfcnionema robusttim, Gunther, Cat. Fish. Brit. Mns., iv, 18G2, ]>. 357. — Vaillant, Exji. Sci. Travaillenr ct 

 Talisman, 1888, 286. 



A Lmmoncma having the anterior rays of the first dorsal i)rolonged; ventral extending 

 to the eleventh anal ray. About 130 scales in the lateral line, and 13 series between tlie 

 anterior dorsal and the lateral line. 



Eadial formula, D. 5,53; A. 47. 



This form, first obtained at Madeira, and described l)y Giinther in 18G2, was found by 

 the French Pjxpedition at considerable depths off Morocco aiul the Cape Verde by the Tra- 

 vaiUeur, Station xsxviii, 1882 in C36 meters and the Talisman, Station ex, cxi, oxiii, in 4(i0 

 to 700 meters. 



LiEMONEMA BARBATULA, Goode and Bean. (Fignres 315-31.5, A. Young.) 



Lccmoncma barhittila, Goode and Bean, Bull. Mus. Comp. Zool., x, 1883, 204. 



A Lcemonema having head contained in body (without caudal) 4| times; height of body 

 4.^ times. Diameter of orbit in length of head 3 times, upper jaw a little more than twice. 

 Barbel half as long as the diameter of the eye. Vent situated under the sixth or seventh 

 ray of second dorsal. Distance of first dorsal from snout equal to one- fourth standard length 

 of body. Tlie base of the first dorsal is half as long as the middle caudal rays; that of tlie 

 second, slightly more tlian 3 times the length of tlie head. The first dorsal is coniposd of 5 

 rays, the fii'st of which is elongate, 3 times as long as the middle caudal rays; it extends to 

 the base of the twenty-fourth ray of the second dorsal. Anal fin inserted at a distance from 

 the tip of the snout equal to twice the length of the head, its distance from the insertion of 

 the ventrals being equal to the length of the head. The length of the ventrals is equal to 

 that of the pectorals, their tips not extending to the vent. 



Scales small, very thin, deciduous, crowded anteriorly. Lateral line not well defined 

 on the jiosterior part of the body. 



Eadial formula: B. vil; D. 5-03; A. 5<); P. 19; V. 2. Scales 13-140-31. 



Color similar to that of the various species of P/M/cis; the dorsal and anal fins iiave nar- 

 row black margins. 



Tlie length of the first dorsal ray is very variable in individuals, being shorter in younger 

 specimens. 



This species diiTers from L. YarrcUii by its much smaller scales, and from L. rohiisfiim 

 by the greater number of rays in the dorsal and anal fins and its much shorter veutrals. 



