18 TRERONID^E. 



Treron crassirostris, Fraser, P. Z. S. 1843, p. 35 ; G. R. Gr. Gen. B. 



ii. p. 467, n. 11 (1844) ; Allen $ Thorns. Exp. Niger, ii. pp. 42, 506 



(1848) (Rollas Isl.) ; Fraser, Zool. Typ. pi. 60 (1849) (St. Thomas 



Isl.) ; Rchnb. Syst. Av. Novit. p. 1, f. 2487 (1851) (ex Fraser) ; 



Hartl. J.f. 0. 1854, p. 205 ; G. R. Gr. List B. Brit. Mus. Columbae, 



p. 66 (1856) ; Hartl. Syst. Orn. W.-Afr. p. 192 (1857) ; ? id. J.f. O. 



1861, p. 265 (Gaboon) ; Sclat. P. Z. S. 1865, p. 871 ; Finsch fy 



Hartl. Yog. Ostafr. p. 536 (1870) ; Bocage, J. Sc. Lisb. xi. p. 252 



(1887) (St. Thomas) ; Sousa,J. Sc. Lisb. xi. p. 152 (1887) ; Bocage, 



ibid. p. 213 (1888). 

 Phalacrotreron crassirostris, Bp. Consp. Av. ii. p. 6 (1854) ; id. Compt. 



Rend, xxxix. p. 873 (1854), xl. p. 216, n. 3 (1855) ; id. Coup 



dtwil Ordr. Pig. pp. 4, 54, n. 3 (1855) : Bp. Icon. Pig. pi. 2 (1857) ; 



Rchnb. Tauten, i. p. 107 (1862), ii. p. 181, t. 244. f. 2487 ; Suppl. 



pi. v. f. 53 (ex Bp.) (1862) ; G. R. Gr. Hand-list, ii. p. 224, n. 9114 



(1870). 

 Treron abvssinica, Hartl. (necGm.) J.f. O. 1861, p. 266 (St. Thome) ; 



Sousa, J. Sc. Lisb. xii. pp. 151, 152'(1888). 

 Treron nudirostris, pt, Schleg. Mus. P.-B. Columbaj, p. 47 (1873) ; 



Gieb. Thes. Orn. iii. p. 651 (1877). 

 Treron calva, pt., Keulem. N. T. D. iii. p. 397 (1866) (Rolla branca) ; 



Schleg. $ Poll. Rech. Faun. Madag. p. 117 (1868) (S. Thomas, but 



not Prince Isl.) ; Shell. Ibis, 1883, p. 267. 

 Treron macrorhyncha (errore ?), Sclat. List Vert. An. 8th ed. 



p. 445 (1883). 



Adult male. Bill very thick and short ; head, neck, and breast 

 dark grey with an olive tinge ; back, rump, upper tail-coverts, and 

 ■wings dark olive ; lower abdomen, flanks, and tibial feathers yellow, 

 the feathers of the flanks dark olive along the centre ; upper wing- 

 coverts near the bend of the wing dark purple ; a pale yellow band 

 at the tip of the greater wing-coverts ; primary-coverts and quills 

 blackish, the latter -with a narrow yellow edge ; tertials dark olive 

 like the back ; under wing-coverts and quills underneath lead-grey, 

 the former with dark olive edges ; tail dark grey, the central 

 feathers tinged with olive towards the base of the edges, the lateral 

 ones black about the middle ; tail underneath black, with a broad 

 grey apical band : " iris bluish white ; bill grey at the tip, dark red 

 at the base ; feet yellow " (F. Newton). Total length about 12 

 inches, wing (vo, tail 4, bill 0*7, tarsus 0'95. 

 ' Hah. Islands of St. Thomas and Rollas, W. Africa. 



a. Ad. st. St, Thomas Isl. (Capt. Zool. Soc. Coll. (Type of 



Thomson). species.) 



b. S ad. sk. St. Thomas Isl. (F. Newton). Prof. B. du Bocage [P.]. 



3. Vinago australis. 



Palumbus viridis madagascariensis, Briss. Orn. i. p. 142, pi. xiv. f. 2 

 (1760). 



Columba australis, Linn. Mant. p. 523 (1771) ; Midi. Syst. Nat. 

 Suppl. p. 131, n. 356 (1776) ; Lath. Lid. Orn. ii. p. 604, n. 41 

 (1790) ; Bechst. JJebers. iv. p. 382 (1811) ; Shaw, Nat. Misc. pi. 709 

 (1805) ; Temtn. \ Knip, Pig. pi. 3 (1808) ; Temm. Hist. Nat. 

 Pig. pp. 43, 440 (1813) ; Vieill. N. D. xxvi. p. 390 (1818) ; Desm. 



