710 ANGUS STOLIDUS, NODDY TEEN. 



tbe base; elsewhere depressed, taperiDgto an acuminate and somewhat decnrved tip. 

 Fore end of nostrils nearly half- way to end of bill, tbe fossse long and deep. No frontal 

 antise ; outline of featber's on base of bill convex (reverse of Sieriia). Wings but mod- 

 erately long for this subfamily, tbe second primary but little shorter than tbe first. 

 Tail very long, broad, fan-shaped, double-rounded, i. p., graduated laterally, \et with 

 central feathers shorter than the next. Tarsi very short, robust, less than the middle 

 too without its claw. Lateral toes, especially the inner, unusually lengthened ; h.illux 

 well developed. Webs broad and full, not incised. CHws short, stout, little curved, 

 but very acute. Podotheca nearly smooth, from tendency to fusion of the plates, there 

 being but a single defined row of scutella in front, with delicate reticulations else- 

 where ; the soles of the webs are perfectly smooth. Edges of middle claw dilated and 

 somewhat pectinate. Plumage dark or nearly unicolor. 



In addition to these external characters may be noted : Eyes small, the anterior can- 

 thus just over the angle of the mouth. Lobes of liver very unequal. Proveutricular 

 zore narrow, with small follicles. Caeca reraaikably long for this subfamily. Duo- 

 denal fold very short. Hepatic and pancreatic ducts opening close by each other. 

 Bronchial half-rings weak and imperfect, the upper part of the tube being almost mem- 

 branous. Lobulation of the kidneys more as in Larua than in' Sterna. 



The generic synonyms above given all apply to slolida and its immediate allies, of 

 which there are several. Only one occurs in North America ; a second, A. tenuirostris* 

 is found in Middle America. 



ANGUS STOLIDUS, (Linn.) Gray. 

 Noddy Tern. 



Sterna siolida, Linn., i, 1766, 227 (Amoen. Acad. 240 ; Hirundo marina major, capite alio, 

 Si.OAXE, Jam. i, 31, pi. 6, f. 3 ; Cat., Car. i, HO; Laws garia fwsca, Briss., vi, 

 199, pi. 18, f. 2; Passer siultus, Ray, 154).— Gji., Syst. Nat. i, 17e8, 605.— Lath., 

 Ind. Orn. ii, 1790, 805.— Less., Voy. Coq. i, ltfi!6, 244 (Chili).— Bp., Svn. l-S-28, 

 356.— Nbtt., Jlan. ii, 1834, 285.— AuD., Orn. Biog. iii, 1835, 516; v, 1839, 642; 

 pi. 275 ; Syn. 1839, 322; B. Am. vii, 1844, 153, pl,440.— Jekyns, Man. 1835, 270 

 (Ireland).— ScHL., Rev. Crit. 1844, 131 (Europe).— Thomps., Trans. Linu. Soc. 

 1835 ; Nat. Hist. Ireland, iii, 308 (Ireland).— Kkox, Zool. 1866,306 (Ireland).— 

 Hartixg, Br. B. 1872, 170 (Ireland).— JlAxnr., Beitr. iv, 874.— Bur.m., Syst. 

 Uebers. iii, 543. 



Megalopterus stoUdus, Bp., List, 1838, 61. — Keys. & Blas., Wirb. Eur. 1640, 98. — Macgil., 

 Man. ii, 1842, 236. 



Anous stolidus, Gray, List Gen. of B. iii, 1841, 100 ; Gen. of B. iii, 1849, 661 ; List Brit. 

 B. 1863, 244 (Ireland).- Cab., J. f. O. v. 234 (Cnlia).— Lawr., B. N. A. 1858, 

 865.— Sci,., Ibis, i, 1859, 233 (Central America).— Bry., Pr. Bost. Soc. vii, 134 

 (Bahamas).— Blas., List B. Eur. 1862, 22 Cquotes Yaer., iii, 417).— Coles, Pr. 

 Phila. Acad. 1862, 557.— Coues, Ibis, 1864, .393 (Honduras).— Lawr., Ann. Lye. 

 N. Y. viii, 1864, 106 (Sombrero).— Guxdl., Rep. F. N. i, 393 (Cuba).— Slnd., 

 Ofv. K. A. V. Forh. (St. Bartholomew); P. Z. S. 1871. 125 (Galapagos).— SCL. 

 & Salv., P, Z. S. 1871, 556 (Middle America, south to Brazil and Chili).— 

 (?)HrTTOX, B, N. Zeal. 1871, 43— Coues, Key, 1872, 323. 



Anous niger, Steph., Gen. Zool. xiii, 140.— Eyt., Cat. IBr. B. 1836, 55. 



Gavia leucoceps, S\v., Classif. B. ii, 1837, 373 (type P. E. 997). 



(?) Anous f rater, Coues, Pr. Phila. Aciid. 1862, 558 (Pacific). (Var. ?) 



(?) Sterna pileata, ScOP., Sonu. Voy. 125, pi. 85. 



(?) Sterna plnlippina, Lath., Ind. Orn. ii, 1790, 805 {=pileata,8cov.). 



" Anous rousseaui, HARTL.,'\/irfe Gray & Blas. 

 ■ " Anous unicolor, Erm., _;«i'.," fide Gray & Blas. 



"' Stei'na tenuirostris, BLYTH,"^e Blas. (Not of Tejim.) 



DiAG. A. fuliginosus unicolor, alis canddque nigrescentihus, fionti et vertice albis, pedibus 

 rubescente-f uscis, rostro nigra. Long. 16.00 j>oll. ; «to 10.00-10.50; roslr. 1.7 »; tars. l.OO. 

 Hab. — South Atlantic and Gulf coast of North America. Bahamas. Cnba. Middle 



America generally, both sides. South to Brazil and Chili. Various warm seas. Aus- 

 tralia (Gould) ; New Zealand (Hutton). Accidental in Europe. 



'Anous tenuirostris {Temni.'). 

 Sterna tenuirostris, Temm,, P. C. 202. 



Anovs tenuirostris, Coues, Ibis, 1864, 393 (Honduras).— Salv., Ibis, 1866, 200 (the 

 same).— ScL. & Salv., P. Z. S. l';71, 566 (the same). 

 This is readily distinguished from A. stolidus by its blackish instead of fuliginous 

 plumage, slender bill, and other chnractera. The discrimiuation, however, of the sev- 

 eral current blackish species is difficult. Gray places tenuirostris, Temm., as a synonym 

 of svncx. Leach, and gives the habitat as Afrcia. 



