The barnacles (Cirripedia); contained in the collections of the U. S. National museum

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: ...aspect the two carinal latera are seen to meet below the carina in a straight suture as far up as their umbones. The peduncle is very short, covered with large imbricating scales in five rows of four scales each. Length of the capitulum 5, breadth 2.5 mm. Length of the peduncle 1.3 mm. Length of the carina 3.2 mm. This minute form is notable for the length of the plates of the lower whorl, especially of the carinal latera, and for the shortness of the carina. It is closely related to S. brevicarinatum Hoek, but in that antipodal species the whole capitulum is more lengthened, the greatest breadth being decidedly less than half of the length. The tergum is longer, the rostral lateral narrower and wedge-shaped, and the subcarinal margin of the carinal latus is slightly convex. The roof of the carina in S. brevicarinatum is described as "not quite flat;" but in the present species it is strongly convex. S. micrum is known by a single individual, which occurred with Scalpellum longicarinatwn. (Fig. 21.) SCALPELLUM FORMOSUM, new species. T.-Cat. No. 8975, U.S.N.M. Type-locality.--Albatross Station 2007, east from the mouth of Chesapeake Bay, north latitude 37 56' 20", west longitude 70 57' 30", in 1,917 fathoms, Globigerina ooze. Other localities.--Albatross Station 2205, south of Marthas Vineyard, in latitude 39 35' north, U.S.N.M. Cat. No. 32897. The capitulum is composed of 13 (or 14?) wholly calcified plates. Ventral margin convex. The plates are sculptured with low, widely spaced, narrow wrinkles or ridges in.the direction of lines of growth, and fine, distinct, and close riblets radiating from the umbones. The cuticle is very thin and sparsely clothed with rather long delicate hairs. Sutures are linear. The scutum is trapezoidal, more t...