. Discovery reports. Discovery (Ship); Scientific expeditions. ALEPOCEPHALIDAE 269 Bathytroctes (Bathytroctes) sp. St. 85. 23. vi. 26. 33° 07' 40" S, 4° 30' 20" E. 4i m. net, 2000 (-0) m.: i specimen, 56 mm. This young specimen agrees very closely with those described above, but the anal fin originates belov^^ the anterior part of the dorsal. The "supraclavicular process" is present, but the luminous organs are much less developed. Bathytroctes (Talismania) homopterus, Vaillant. i, Exped. Set. ' Travailleur' et' Talisman', Poissons, p. 153, Batliytroctes homopterus, Vaillan
. Discovery reports. Discovery (Ship); Scientific expeditions. ALEPOCEPHALIDAE 269 Bathytroctes (Bathytroctes) sp. St. 85. 23. vi. 26. 33° 07' 40" S, 4° 30' 20" E. 4i m. net, 2000 (-0) m.: i specimen, 56 mm. This young specimen agrees very closely with those described above, but the anal fin originates belov^^ the anterior part of the dorsal. The "supraclavicular process" is present, but the luminous organs are much less developed. Bathytroctes (Talismania) homopterus, Vaillant. i, Exped. Set. ' Travailleur' et' Talisman', Poissons, p. 153, Batliytroctes homopterus, Vaillant, i< pi. xii, fig. I. Bathytroctes {Talismania) homopterus, Goode and Bean, 1895, Ocean. Ichth. p. 43. St. 269. 26. vii. 27. 15° 55'00" S, io°3s'oo"E. 4|m. net, horizontal, 600-700 (-0) m.: 2 specimens, 83-100 mm. 28. X. 25. 13° 25' N, 18° 22' W. 4J m. net, horizontal, 900 (-0) m.: i specimen, 47 mm. Depth of body 4^ in the length, length of head a little more than 3. Snout a little shorter than eye, diameter of which is about 3 J, in length of head and equal to interorbital width. Upper part of operculum with a series of diverging ridges ending in feeble. Fig. 2. Bathytroctes {Talismania) homopterus. (x i.) pointed projections. A pointed membranous process above the clavicle. Praemaxillary somewhat protruding, bearing two or three forwardly directed teeth anteriorly, of which the inner are longest, followed by a series of smaller conical teeth; the anterior teeth are more prominent in the young; maxillary toothed, extending to below middle of eye or a little beyond. About 20 gill-rakers on lower part of anterior arch. 67-75 scales in a longitudinal series. Dorsal 18-20; origin a little nearer posterior edge of operculum than base of caudal. Anal 16-18; origin slightly behind that of dorsal. Caudal peduncle 11 times as long as deep. Described from three specimens, 47 to 100 mm. in length. Hab. North Atlantic. Professor L. Roule has kindly compared one of the
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