. Discovery reports. Discovery (Ship); Scientific expeditions. SCALPELLUM 237 Diagnosis. Female. Capitulum hairy, with fourteen well calcified plates, separated by chitinous interspaces, the valves sculptured. Scutum quadrangular, apex recurved and occludent margin convex. Tergum triangular, with nearly straight occludent margins. Carina regularly bowed with apical umbo. Dorsal roof strongly convex. Upper latus pentagonal with apical umbo. Rostrum triangular with apical umbo. Rostral latus quadrangular, wide rather than high. Inframedian latus triangular with apical umbo. Carinal latus quadran
. Discovery reports. Discovery (Ship); Scientific expeditions. SCALPELLUM 237 Diagnosis. Female. Capitulum hairy, with fourteen well calcified plates, separated by chitinous interspaces, the valves sculptured. Scutum quadrangular, apex recurved and occludent margin convex. Tergum triangular, with nearly straight occludent margins. Carina regularly bowed with apical umbo. Dorsal roof strongly convex. Upper latus pentagonal with apical umbo. Rostrum triangular with apical umbo. Rostral latus quadrangular, wide rather than high. Inframedian latus triangular with apical umbo. Carinal latus quadrangular with apical umbo. Peduncle with trans- versely elongated scales with chitinous interspaces. Mandible with three teeth and a pectinated inner angle. Maxilla I with an indistinct notch. Maxilla II with bristles in two groups. Caudal appendage single-jointed, with bristles, of the same length as the proximal segment of the protopodite of cirrus Discussion and Description. This new species, which I have named S. mognae- carinoe, from the large and well-developed carina, belongs, like S. liberiim, , to the group of S. velutinum. From this species it is well differentiated by several external and internal characters. In the shape of the carinal latus it is much related to S. regium, Wyv. Thomson, 1873, S. moluccamim, Hoek, 1883, and , Hoek, 1883, of the Challenger Expedition. These species I have studied in the British Museum, and have found them in other characters well separated. In the internal parts this new species differs especially by the single-jointed caudal appendage. In S. regium the appendage is four-jointed (according to Hoek); in S. gigas I found in the type material four to six segments; in S. moluccamim the appendage has five to six segments (Hoek, , 1883, and Nilsson-Cantell, 1927). Female. Capitulum wholly covered by a thick and very hairy cuticle, and this must first be removed before one can study the valves. There are fourteen plates separa
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificexpedition
