1905 - 6 .] M. Louis Dollo on Bathy draco Scotim. 
67 
pectoral rays branched. Teeth in the jaws in villiform hands ; 
none on the vomer or the palatine bones. Opercles unarmed ; 
ten hranchiostegals ; the gill-membranes free from the isthmus 
and hut slightly united in front. Air-bladder none.” 
Et il le pla§ait dans la famille des Trachinidae. 
2. En 1887, M. Gunther reprenait cette diagnose, pour la 
corriger legerement et la completer, dans sa Monographie des 
Poissons abyssaux du Challenger * * * § 
Je me borne a reproduire, ci-dessous, les ameliorations et 
additions : 
“ Tail tapering and very attenuated behind. Eyes very large, 
vertical , close together. Lateral line rather wide, continuous. 
Gills four ; 'pseudobranchiae none ; gill-rakers short. 1 * 
Et M. Gunther continuait a laisser le genre Bathy draco parmi 
les Trachinidae. 
3. En 1902, M. G. A. Boulenger, Senior Assistant au British 
Museum, qui avait deja incorpore le genre Bathydraco , l’annee pre- 
cedence, f dans la famille des Nototheniidae , amendait la derniere 
diagnose de M. Giinther en demontrant Yexistence des Pseudo- 
branchies.% 
4. Me basant sur les termes de la diagnose de M. Gunther : 
“ Scales very small, imbedded in the skin,” — que cet auteur 
emploie, ailleurs, pour le genre Anguilla : § “ Small scales imbedded 
in the skin,” — j’en avais conclu que les ecailles de Bathydraco 
devaient etre degenerees au point d’etre secondairement cycloides 
(Pseudocycloides). || 
Auquel cas le Nototheniidae abyssal de la Scotia aurait constitue 
un genre nouveau. 
Mais M. C. Tate Regan, Junior Assistant au British Museum, 
* A. Giinther, “Report on the Deep-Sea Fishes,” Voyage of H.M.S. Chal- 
lenger during the years 1873-76, Zoology, vol. xxii., 1887, p. 47. 
t G. A. Boulenger, “ Notes on the Classification of Teleostean Fishes. 
I. On the Trachinidse and their Allies,” Annals and Magazine of Natural 
History , 1901, vol. viii., p. 266. 
t G. A. Boulenger, “ Pisces,” Report on the Collections of Natural History 
made in the Antarctic Regions during the Voyage of the “ Southern Cross.” 
Londres, 1902, p. 176. 
§ A. Gunther, An Introduction to the Study of Fishes, Edimbourg. 
1880, p. 671. 
|| L. Dollo, Poissons de V Expedition Antarctiquc Beige, etc. , p. 140. 
