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Show 184 MESSRS. SCLATER AND SALVIN ON PERUVIAN BIRDS. [Feb. 4, either side nearly straight; ventral margin rounded; cardinal denticles ten on each side; internal margin not crenulate. Long. 15, alt. 16, lat. 8 lines. Hab. Dredged off the coast of Queensland. Myochama stutchburgi, A . Ad., is parasitic upon this fine species. 7. LEDA HANLEYI, n. sp. (Plate XX. fig. 7.) Shell triangularly ovate, subequilateral, ventricose, moderately solid, concentrically sulcate, shining, covered with a pale olivaceous epidermis ; the anterior area furnished with an oblique ridge extending from the umboes to the ventral margin; the posterior area with a radiating, shallow, but wide, impression ; the anterior dorsal margin a little incurved and excavated ; the posterior one almost straight; the anterior extremity rostrate and slightly truncate; the posterior rounded; the ventral margin arcuate; umboes tumid, incurved, approximate ; internal margin simple. Long. 11, alt. 6^, lat. 4 | lines. Hab. Australian Seas. 8. PECTEN FORMOSUS, n. sp. (Plate XX. fig. 8.) Shell rotundately ovate, rather thin, moderately convex, equilateral, equivalve, yellow or flesh-colour, ornamented with about ten purple rays; the valves sculptured with about forty unequal radiating ribs, the ribs armed with short erect scale-like spines; ligamental margin transverse; ears very unequal, and furnished with numerous radiating squamose ribs ; byssal sinus large. Long. 10, alt. 10, lat. 4 lines. Hab. ? Fiji Islands. EXPLANATION OF PLATE XX. Fig. 1. Euthria aracanensis, p. 182. 2. Helix (Semicornu) silenus, p. 182. 3. (Trochomorpha) juanita, p. 183. 4. (Angasella) phillipsiana, p. 183. 5. Pectunculus gealei, p. 183. 6. Limopsis loringi, p. 183. 7. Leda hanleyi, p. 184. 8, 8 a. Pecten formosus, p. 184. 6. On Peruvian Birds collected by Mr. Whitely. By P. SCLATER, M.A., Ph.D., F.R.S., and OSBERT SALVIN, M.A., F.Z.S. Part VI.* [Received December 17, 1872.] (Plate XXI.) The present collection of birds, containing about 130 skins referable to 80 species, was formed by M r . Whitely chiefly at Cosnipata, the same locality as that in which his last collection was madef, in * Continued from P.Z.S. 1869, pp. 596-601. t See P. Z. S. 1869, p. 597. |
