184 MESSRS. SCLATER AND SALVIN ON PERUVIAN BIRDS. [Feb. 4, 



either side nearly straight ; ventral margin rounded ; cardinal den- 

 ticles ten on each side ; internal margin not crenulate. 



Long. 15, alt. 16, lat. 8 lines. 



Hab. Dredged off the coast of Queensland. 



Myochama stutchburyi, 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 silicate, shining, covered with a pale olivaceous 

 epidermis ; the anterior area furnished with an oblique ridge extend- 

 ing 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. 6g, lat. 4g 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 OP PLATE XX. 



Fig. 1. Euthria aracanensis, p. 182. 



2. Helix (Semicomu) silent/ s, p. 182. 



3. {Trochomorpha) ji/anita, p. 183. 



4. (Angasella) phillipsiana, p. 183. 



5. Pectunculus gcalci, 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. L. 

 Sclater, M.A., Ph.D., F.R.S., and Osbert Salvin, 

 M.A., F.Z.S. Part VI.* 



[Keceived December 17, 1872.] 



(Plate XXI.) 



The present collection of birds, containing about 1 30 skins refer- 

 able to 80 species, was formed by Mr. Whitely chiefly at Cosnipata, 

 the same locality as that in which his last collection was madef, in 



* Continued from P.Z.S. 1869, pp. 596-301. 

 t See P. Z. S. 1869, p. 597. 



