828 U. S. p. E. R. EXP. AND SURVEYS— ZOOLOGY — GENERAL REPORT. 



List of specimens. 



Locality. 



Whence obtained. Original 



No. 



Florida coast \ George N. Lawrence | 1016 



Coast of New Yorli do ' 



DAPTION, Stephens. 



Daption, Steph. Shaw's Gen. Zool. Xlll, 1825, 239. Type Procdlaria capensis, L. 



Ch. — Bill short, broad at the base, compressed near the tip, which is curved and acute, but rather weak ; nostrils un the base 

 of the culmen, and depressed ; wings rather moderate, first quill longest ; tail short and rounded ; tarsi of moderate length ami 

 rather slender ; anterior toes long and united by a full web; a short spur, rather obtuse, in place of the hind toe. In form quite 

 robust-. 



This genus is founded on a single species. 



DAPTION CAPENSIS, Stephens. 

 The Pintado Petrel ; The Cape Pigeon. 



Procellaria capensis, Linn. Syst. Nat. I, 1766, 213. — Lawr. Ann. Lye. Nat. Hist. N. Y. VI, 1853, 6. 

 Daplion capensis, Stephens, Shaw's Gen. Zool. XIII, 1825. — Bon. Cons. Avium, II, 1855, 188. 



Sp. Ch. — Upper'part and sides of tlie head, and hind nccl^ plumbeous blaclc ; bacls, rump, and upper tall coverts white, each 

 feather terminating with a plumbeous blacli mark, giving a mottled appearance to the upper plumage ; smaller wing covertB 

 plumbeous black, tipped with brown ; larger wing coverts white, margined with plumbeous black ; primaries black on the outer 

 webs'and white on the inner, except near the end where they are dark ash ; secondaries white, with dark tips ; tail white, with 

 a broad terminal band of plumbeous black ; lower parts white ; bill black ; tarsi and feel brown ; the toes marked with yellow. 



Length, 15 inches ; wing, lOJ ; tail, 4? ; bill, Ij ; tarsus, 1|. 



Hah. — Off the coast of California. 



One specimen in the collection from the southern seas. Specimen in my cabinet from the 

 California coast. 



List of specimens. 



TIIALASSIDROMA, V 



1 g o r s . 



Thalaasidroma, Vigors, Zool. Jour. 1825. 

 Ch.— Bill shorter than the head, slender and weak, the tip curved and acute, tlio sides compressed and moderately grooved ; 

 nostrils at the base of the culmen, tubular and prominent; wings long and narrow, the second qnill longest; tail forked or 

 cmarginatc ; logs slender and very long ; tibia bare for a considerable space ; anterior toes rather short and slender, united by 

 an indented web ; aeliort spur in place of the hind too. 



