480 DEEP-SEA FISHES OP THE ATLANTIC BASIN. 



similarly grotesquely shaped fish iiDcler the name of Gymtu-tnis Miillerianiis (Wiegmann's 

 Areliiv, 1S40, 13), and Moi-caii, iu his Fishes of France (p. ^>(u), devotes three pages to an 

 argumeut for the specitic distiiietness of T. cri status. 



TRACHYl'TEIUrs KlU'ANDUS, (Mkiaxa), Costa. 



" Gymiulriis rcpandiin, Metaxa." 



Trachijiitrrus repaniliis, Costa, F;mna Napolitunn, Pesci, |)1. ix. 



A Tmvhyptvrus with the greatest height of the body cctutained about 3i times iu its 

 total length (without caudal). The belly is sharp and rough, the caudal peduncle very 

 slender. The anterior dorsal is composed of 8 rays, the length of which is more than li 

 times the distance between the tip of the snout and the margin of the caudal; these rays 

 have here and there upon them membranous expansions. The ventrals are about as long 

 as the fish, and the first ray at its extremity becomes divided into 4 membranous filaments. 



Eadial formula: D. S + 152; A. none; P. 10; V. 7; (J. 10. 



Color : The entire body is silvery, with numerous bluish-black dots, which, being jdaced 

 more closely together in the region of the bacls, form interrupted transverse bands; these, 

 ill the caudal region comi)letely surround the body. There are certain reddish spots which 

 miugle with the blue ones, giving a rosy tint to the spots uijou the back. The fins are 

 rosy; oidy the membranous expansions of the anterior dorsal are black. The caudal is of 

 the same color, except the ujjper and lower margins, which are somewhat clouded. 



This form has been taken at Civita Vecchia and Naples, and has been seen also in the 

 Adriatic. A figure of it is given in Giinther's article "Ichthyology" iu the Cyclopanlia 

 Britanuica, and also in the Study of Fishes (p. r)21). It is undoubtedly a. young of some 

 other form, but possibly not of T. travhyptcrus, since the small form described by Costa 

 under the name T. filicaiula has been identified by Emery with that siiecies. T. filimmla 

 has a very long filament at the tip of the next to the last caudal ray, counting from above. 

 Its dorsal crest is very long, but lacks the membranous expansion noted iu T. rei)andii8. 

 The ventrals are also very long. 



Family REGALECID.^. 



/ Ginnetridi. RafinesquE, ludice d'lttiologia Siciliim;i, 1810, 31. 



(lymiiehidw, SWAINSON, Nat. Hi.st. Fishes, 1839, n, 47,49. 



Eegatecid<e, Gilt,, Standard Nat. Hist., iii 183.^; American Naturalist, xxi, 1887, 86; xxiv, 1890, 482. 



Tfpniosomes with the body very elongated and compressed, the head oblong, the 

 opercular appai'atus well developed (the operculum extended backwards, the suboi)erculum 

 obliquely behind it, and the iiiteroperculum extended upwards below the two), the preor- 

 bital chaiu oblique and widest at the second bone, ventrals represented by single elongate 

 rays, the cranium with the myodome atrophied and the dichost suppressed, the supraoc- 

 cij)ital pushed forward by the extensive development of the epiotics which encroach for- 

 wards on the roof as well as back and sides of the cranium, and with short ribs. (Gill.) 



REGALECUS, Brunnich. 



Begalfcus, BrOnnich, Nya Sammluug, in, 178S, 414. — Gunthek, Cat. Fish. IJrit. Mus., iii, 307; Challenger 



Eeport, XXII, 73. 

 (Jymnel)iis, ScHNElDEK, Rloch Syst. Ichth., 1801, 487. — CuviER and Valenciennes, Hist. Nat. I'oiss, x, 3.52. 



r>ody very elongate, compressed. Head oblong. ' Teeth al)sent. Ventrals each a pro- 

 longed filament, sometimes with a dilated tij). Caudal rudimentary (not so in R. liussclii, 

 from Asia). No air bladder. Pyloric appendages in considerable numbers. 



REGALECUS GLESNE, Ascanius. (Figure 395.) 



Spada iiKir'niii, iMri.KAio. 



Ophidium glenne, A.sCANIU.S, Nya Saininl. Vid. Sclsk. Skr. m, 419. 



RegaUcus gleanc, AsCANius, leones Kerum Naturalinm, ISOii, ])1. xi. — LACicriiDE, <ip. <-it., n, 214. — CiiiA^ , I'loc. 



Zool. Soc, 18-19, 81.— Gi-NTilEH, Cat. Fish. Brit. Mus., in, 310. 

 Gymnctniii glcmie, CcviEU and Valenciennes, op. cit., x, 3(j6. 



