OCR Text |
Show 608 MR. R. B. SHARPE ON THE CUCULID.E [Julie 17, another striking instance of mimicry-perhaps the most perfect in the whole class of birds. Genus 13. SERICOSOMUS. Serisomus (lege Sericosomus), Sw. Classif. B. ii. Type. p. 323 (1857) S. cristatus. Coua*, auct. (nee Cuvier). Glaucococcyx, Cab. & Heine, Mus. Hein. Th. iv. p. 71 (1862) S. cceruleus. Fig. 17. Head of Sericosomus cceruleus. Fig. 18. Head and foot of Cochlothraustes delalandi. * Cuvier, to w h o m the establishment of this well-known and long-used name has been credited, never used it as a genus (cf. Regne An. i. p. 425). I cannot separate Glaucococcyx of Cabanis and Heine, as the type (G. cceruleus), though aberrant in coloration, seems to be a typical species as regards structure. |