Bulletin - United States National Museum . a Fig. 24.—SCALPELLUM ANTILLARUM X 3,WITH DETAILS OF 6, ROSTRUM AND C,CAKINA. THE BAENACLES IN THE U. S. NATIONAL MUSEUM. 63 The scutum is about twice as long as wide, rhomboidal, with acuteapical umbo. The occludent and lateral margins are subparallel andsomewhat convex. The tergal margin is concave, the basal straight. The tergum is triangular, conspicuously larger than the occludent margin is about three-fourths as long as that of thescutum and is strongly arched, the acute summit being thus somewhatrecurved. The scutal margin is a littl
Bulletin - United States National Museum . a Fig. 24.—SCALPELLUM ANTILLARUM X 3,WITH DETAILS OF 6, ROSTRUM AND C,CAKINA. THE BAENACLES IN THE U. S. NATIONAL MUSEUM. 63 The scutum is about twice as long as wide, rhomboidal, with acuteapical umbo. The occludent and lateral margins are subparallel andsomewhat convex. The tergal margin is concave, the basal straight. The tergum is triangular, conspicuously larger than the occludent margin is about three-fourths as long as that of thescutum and is strongly arched, the acute summit being thus somewhatrecurved. The scutal margin is a little longer than the occludent; thecarinal margin is a little hollowed near the apex, elsewhere convex. The carina is long and equably curved, its apical umbo at about theupper fourth of the carinal margin of the tergum. The roof is flat
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
