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Show 666 MR. E. j. M I E R S O N A C O L L E C T I O N O F [June 19, segment is imperfect, and cannot be compared with that of A. vulgaris; it is, however, rather more coarsely punctulated, and of a darker colour, variegated with bright yellow markings. CUBARIS, Brandt. CUBARIS AFFINIS, sp. n. (Plate LXVII. fig. 4.) Oblong-oval, convex, with the segments very finely and closely granulated, with a transverse series of much larger granules on each segment of the body, on each side of the middle line. Head transverse- oblong, anterior margin straight, reflexed, and level with the strongly reflexed lateral margins of the first segment of the body. Eyes small, granulated, and placed close to the lateral margins of the head. First three segments of the body with the segments angularly bent backwards on the sides, the angulation being most conspicuous in the first segment. Segments of the tail short, with the upper surface plane, or even slightly concave on the sides, towards the lateral margin. Terminal segment concave above, and with the lateral margins excavated, very nearly as wide at the straight posterior as at the anterior margin. Antennse with the two terminal joints (flagellum) short, together not as long as the antepenultimate joint; penultimate about one third the length of terminal joint. Inner (terminal) joint of the uropoda minute, inserted upon the inner margin of the longitudinal oblong penultimate joint. Colour dark-brown in spirit; when dry the specimens are white. Length i inch, breadth £ inch. Hab. Cayenne. Specimens from Jamaica belonging to this species are in the British- Museum collection. C. affinis is very nearly allied to C. cubensis (Armadillo cubensis, De Saussure, M e m . Soc. Phys. et Hist. Nat. Geneve, xiv. (2) pl, 481, pl. v. fig. 42, 1858), which, however, has the terminal segment longer in proportion to its width, and the posterior margin of each segment of the body is marked with a transverse groove, which is reflexed and continued along the latero-inferior margin, and is strongly marked on the anterior segments. A. cacahuamilpensis, Bilimek (Verh. zool.-bot. Gesellsch. xvii. p. 907,1867) from Mexico, which is also, I believe, a Cubaris, is distinguished by the great breadth of the first segment of the body, &c. Another American species of this genus, in the British-Museum collection, may be characterized as follows :- CUBARIS GIGAS, sp. n. (Plate LXVIII. fig. 1.) Convex oblong-oval, nearly smooth, surface only very minutely granulated, and with only obscure indications of larger tubercles on each side of the middle line. Head transverse, with the anterior margin straight, reflexed at a right angle (as seen in a lateral view) with the upper surface of the head, and (as seen in a dorsal view) also forming a right angle with the lateral margins; antero-lateral lobes wanting. First segment of the body very concave on the sides, with the lateral margins strongly reflexed ; all the segments distinctly |