. 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. A
. 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 these specimens with the type of the species preserved in the Paris Museum, and writes as follows: " Quant a la specification, elle penche plutot, a mon avis, apres examen, du cote B. homoptera Vaillant. Pourtant, I'exemplaire etant unique, et de petite taille, il m'est malaise d'opiner avec surete ". It is of interest to note that the "supraclavicular process" is still present in the largest example.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificexpedition
