224 AYES : STEGANOPODES. — XXXIV. 



673. P. stricklandi Ridgway. Sooty Shearwater. Bill 

 dusky. L. 16. W. 12. B. If. Atlantic, N. to Grand Banks. 

 I [o Hugh Strickland.) 



340. .S3STRELATA Bonaparte. (ol<rrpt]\aTos, goaded on by a 



gad-fly.) 



674. Si. haesitata(Kuhl). Black-capped Petrel. Upper tail- 

 coverts and lower parts white; upper parts mostly blackish ; tail 

 graduated. L. 16. W. 11. T. 5. B. \\. Atlantic, N. to N. Y., 

 scarce. (Eu.) (Lat., hcesitatus, stuck-fast, the describer being in 

 doubt.) 



341. PRO CELL ARIA Linnaeus. (Lat., stormy.) 



6 75. P. pelagica L. Storm Petrel. Dusky; upper tail cov- 

 erts white, edged with black. L. 5f . W. 4f. T. 2£. N. Atl., 

 rarely S. (Eu.) 



342. OCEANODROMA Reichenbach. ('SlKeavos ocean ; bp6p.os, 



running.) 



676. O. leucorhoa Vieillot. Leach's Petrel. Sooty, upper 

 tail coverts white; feet black. L. 8. W. 6£. T. 4. Northern 

 Seas. (Eu.) (Xcvko?, white ; oppos, rump.) 



343. OCEANITES Keyserling & Blasius. (awceawVjjp, a son of 



the sea.) 



677. O. oceanicus (Kuhl). Wilson's Petrel. Sooty; wings 

 and tail black ; upper tail coverts white. L. 7. W. 6. T. 3. 

 Tarsus lj. Cosmopolitan, common. (Eu.) 



Order XXXIV. STEGANOPODES. (The Totipalmate 



Birds.) 



Desmognathous swimmers with all four toes full-webbed; hind 

 toe lengthened, scarcely elevated ; tibia feathered; bill horny, not 

 lamellate; nostrils very small or abortive; no basipterygoids ; a 

 prominent gular pouch ; tarsus reticulate. Altricial. " Notwith- 

 standing the shortness of the legs and the character of the toes, 

 . . . the birds of the present order are unquestionably nearly re- 

 lated to the Heroilii " (Stejneger). Of this small order, most of the 

 species are sea-birds, active and voracious, about half of all being 

 cormorants, (areyavot, covered ; 7rou'r, foot.) 



Families of Steganopodes. 



a. Upper mandible not hooked at tip. 

 b. Bill very thick through base, the tip slightly curved; tail moderate, 



graduated, the feathers rather pointed Sulid^s, 131. 



bb. Bill slender, nearly straight; neck very long and slender; tail long, 

 fan-shaped when spread, the feathers very broad. Anhingid^e, 132. 

 aa. Upper mandible hooked at tip. 



