48 



o,j). S ad. ; q- 

 s. $ ad. ; t, 

 u, V, Imm. sk 



w, X. (S 2 ad. 

 sk. 



y, z. cJ ad. ; «', 

 b'. $ad.; c'- 

 c'. c? imm. 

 sk. 



/, {/'. 3 2 ad. 

 sk. 



h'. Ad. sk. 



i'. Ad. ; k'. Juv. 

 sk. 



^'. 2 j^^^- ^• 



m'. (S ad. sk. 



n', o'. cJ ad. 



sk. 

 p'. S ad. sk. 

 q'. S ad. sk. 



r'. (S ad. ; s', 



t;, u'. c? 2 



imm. sk. 

 v'. <S juv. sk. 



w', x'. Ad. sk. 

 ?/'. c? juv. sk. 



s'. 2 imm. sk. 



a" . Imm. sk. 



Tarpon Springs, Florida, Sept. & Salvin-Godman ColL 

 Jan. ( W. E. D. Scott). 



Corpus Christi, Texas, May (F. Salvin-Godman ColL 



£. Armstronff). 

 Corpus Christi, Texas, Oct., Nov. Salvin-Godman Coll. 



(J^. B.A.). 



Brownsville, Texas, May {F. 

 B.A.). 



San Antonio, Texas, June (JT. 

 F. Dresser). 



Koshkonong Lake, South Wis- 

 consin, Jvme [Th. Kumlieii). 



Koshkonong Lake, South Wis- 

 consin {Til. Kumlien). 



Utah Lake, July (Smithsonian 

 Inst.). 



Washoe Lake, Nevada, May 

 {Henshaiv) . 



California [F. Gruber). 



Oakland, California, Feb. (Ken- 

 sham). 



San Diego, California, Dec. (Hen- 

 shaiv). 



La Paz, Lower California, Jan. 



(Forrer). 

 West Coast, Mexico. 

 Tehuantepec, Feb. {Prof. F. 



Sumichrast). 

 Lake of Dueiias, Guatemala, 



Oct. 28(0. .S.). 

 At sea, 200-300 miles off Per- 



nambuco. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



H. Saunders Coll. 



Salvin-Godman Coll, 



Salvin-Godman Coll, 



H. Saunders Coll. 

 Salvin-Godman Coll. 



Salvin-Godman Coll. 



H. Saunders Coll. 



H. Saunders Coll. 

 H. Saunders Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 



3. Sterna albistriata. 



Sterna antarctica, Wagl.Isis, 1832, p. 1223 (ex J. R. Forster, MS. ; 



nee Lesson, 1831, which = S. ansestbeta); Forst. Descr. Anim. 



p. 107 (1844) ; Gray, Voy. Ereb. ^ Terr., B'rds, p. 19 (1844) ; 



id. Gen. B. iii. p. 059 (1846) ; Finsch, J.f. O. 1870, p. 367 ; id. 



op. cit. 1872, p. 254 ; id. op. cit. 1874, p. 205 ; Rutton, Cat. N. 



Zeal. B. p. 42 (1871) ; Biiller, Bds. N. Zeal. p. 283 (1873) ; 



Sharpe, Voy. Ereb. Sf Terr., Birds, App. p. 32 (1875) ; Saunders, 



P. Z. S. 1876, p. 646 (revision) ; Bidler, Man. B. N. Zeal. p. 81 



(1882) ; id. B. N. Zeal. 2nd ed. ii. p. 70, pi. xxx. fig. sup. (1885) ; 



Tristram, Cat. Coll. B. p. 8 (1889) ; Forbes, Ibis, 1893, p. 530 



(Chatham Is.). 

 Hydrocbelidon albistriata, Gray, Voy. Erebus S; Terror, Birds, 



p. 19, pi. 21 (1844) * ; id. Gen. B. iii. p. 660 (1846) ; Reichnb. 



Natat. tab. xxi. fig. 817 (1848) ; B^). C. R. xlii. p. 773 (1856) ; 



Gray, Hand-l. B. iii. p. 122 (1871). 



* The specific name was originally printed alhostriata and was subsequently 

 altered to albistriata by Gray himself. 



